About the Authors |
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xiii | |
Preface |
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xv | |
Nomenclature |
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xvii | |
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1 | (10) |
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1.1 Need for smaller flow passages |
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1 | (1) |
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1.2 Flow channel classification |
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2 | (2) |
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1.3 Basic heat transfer and pressure drop considerations |
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4 | (1) |
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1.4 The potential and special demands of fluidic biological applications |
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5 | (2) |
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7 | (1) |
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8 | (3) |
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8 | (1) |
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8 | (1) |
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8 | (1) |
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8 | (3) |
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Chapter 2 Single-Phase Gas Flow in Microchannels |
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11 | (92) |
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2.1 Rarefaction and wall effects in microflows |
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12 | (11) |
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2.1.1 Gas at the molecular level |
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12 | (6) |
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2.1.2 Continuum assumption and thermodynamic equilibrium |
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18 | (3) |
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2.1.3 Rarefaction and Knudsen analogy |
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21 | (1) |
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22 | (1) |
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2.2 Gas flow regimes in microchannels |
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23 | (23) |
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25 | (1) |
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2.2.2 Continuum flow regime |
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26 | (1) |
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27 | (9) |
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2.2.4 Transition flow and free molecular flow |
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36 | (10) |
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2.3 Pressure-driven steady slip flows in microchannels |
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46 | (31) |
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2.3.1 Plane flow between parallel plates |
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47 | (5) |
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2.3.2 Gas flow in circular microtubes |
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52 | (2) |
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2.3.3 Gas flow in annular ducts |
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54 | (1) |
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2.3.4 Gas flow in rectangular microchannels |
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55 | (9) |
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64 | (12) |
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76 | (1) |
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2.4 Pulsed gas flows in microchannels |
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77 | (3) |
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2.5 Thermally driven gas microflows and vacuum generation |
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80 | (3) |
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2.5.1 Transpiration pumping |
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81 | (1) |
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2.5.2 Accommodation pumping |
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82 | (1) |
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2.6 Heat transfer in microchannels |
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83 | (5) |
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2.6.1 Heat transfer in a plane microchannel |
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84 | (2) |
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2.6.2 Heat transfer in a circular microtube |
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86 | (1) |
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2.6.3 Heat transfer in a rectangular microchannel |
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87 | (1) |
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2.7 Future research needs |
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88 | (1) |
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88 | (5) |
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88 | (1) |
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88 | (3) |
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91 | (1) |
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91 | (2) |
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93 | (10) |
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93 | (1) |
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93 | (1) |
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93 | (1) |
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94 | (1) |
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94 | (1) |
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95 | (1) |
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95 | (8) |
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Chapter 3 Single-Phase Liquid Flow in Minichannels and Microchannels |
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103 | (72) |
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103 | (3) |
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3.1.1 Fundamental issues in liquid flow at microscale |
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103 | (1) |
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3.1.2 Need for smaller flow passages |
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104 | (2) |
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3.2 Pressure drop in single-phase liquid flow |
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106 | (6) |
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3.2.1 Basic pressure drop relations |
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106 | (1) |
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3.2.2 Fully developed laminar flow |
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107 | (2) |
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3.2.3 Developing laminar flow |
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109 | (3) |
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3.2.4 Fully developed and developing turbulent flow |
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112 | (1) |
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3.3 Total pressure drop in a microchannel heat exchanger |
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112 | (8) |
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3.3.1 Entrance and exit loss coefficients |
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112 | (7) |
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3.3.2 Laminar-to-turbulent transition |
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119 | (1) |
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120 | (11) |
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3.4.1 Roughness representation |
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120 | (2) |
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3.4.2 Roughness effect on friction factor |
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122 | (7) |
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3.4.3 Roughness effect on the laminar-to-turbulent flow transition |
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129 | (1) |
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3.4.4 Developing flow in rough tubes |
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130 | (1) |
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3.4.5 Turbulent flow in rough tubes |
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130 | (1) |
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3.5 Heat transfer in microchannels |
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131 | (14) |
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3.5.1 Fully developed laminar flow |
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131 | (3) |
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3.5.2 Thermally developing flow |
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134 | (2) |
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3.5.3 Agreement between theory and available experimental data on laminar flow heat transfer |
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136 | (5) |
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3.5.4 Heat transfer in the transition and turbulent flow regions |
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141 | (1) |
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3.5.5 Axial conduction effects |
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142 | (3) |
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3.5.6 Variable property effects |
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145 | (1) |
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3.6 Roughness effects on heat transfer in microchannels and minichannels |
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145 | (4) |
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3.7 Heat transfer enhancement with nanofluids |
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149 | (1) |
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3.8 Microchannel and minichannel geometry optimization |
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150 | (2) |
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3.9 Enhanced microchannels |
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152 | (4) |
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156 | (10) |
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156 | (1) |
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156 | (5) |
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161 | (1) |
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161 | (2) |
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163 | (1) |
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164 | (2) |
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166 | (9) |
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166 | (1) |
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167 | (1) |
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167 | (1) |
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167 | (1) |
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167 | (1) |
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167 | (1) |
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167 | (1) |
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167 | (1) |
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168 | (1) |
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168 | (1) |
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168 | (1) |
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168 | (1) |
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169 | (6) |
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Chapter 4 Single-Phase Electrokinetic Flow in Microchannels |
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175 | (46) |
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175 | (1) |
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4.2 Electrical double layer field |
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176 | (1) |
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4.3 Electroosmotic flow in microchannels |
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177 | (7) |
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4.4 Experimental techniques for studying electroosmotic flow |
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184 | (6) |
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4.5 Electroosmotic flow in heterogeneous microchannels |
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190 | (6) |
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4.6 AC electroosmotic flow |
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196 | (6) |
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4.7 Electrokinetic mixing |
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202 | (6) |
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4.8 Electrokinetic sample dispensing |
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208 | (4) |
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4.9 Electroosmotic flow with joule heating effects |
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212 | (4) |
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216 | (5) |
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216 | (1) |
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216 | (1) |
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216 | (1) |
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216 | (1) |
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216 | (1) |
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217 | (1) |
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217 | (4) |
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Chapter 5 Flow Boiling in Minichannels and Microchannels |
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221 | (74) |
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221 | (1) |
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5.2 Nucleation in minichannels and microchannels |
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222 | (6) |
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5.3 Nondimensional numbers during flow boiling in microchannels |
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228 | (2) |
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5.4 Flow patterns, instabilities, and heat transfer mechanisms during flow boiling in minichannels and microchannels |
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230 | (15) |
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5.5 Critical Heat Flux in microchannels |
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245 | (7) |
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5.5.1 Comparison with pool boiling |
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245 | (7) |
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5.6 Stabilization of flow boiling in microchannels |
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252 | (5) |
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5.6.1 Pressure drop element at the inlet to each channel |
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252 | (1) |
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5.6.2 Flow stabilization with nucleation cavities |
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253 | (2) |
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5.6.3 Flow stabilization with diverging microchannels |
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255 | (2) |
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5.7 Predicting heat transfer in microchannels |
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257 | (5) |
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5.8 Pressure drop during flow boiling in microchannels and minichannels |
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262 | (3) |
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5.8.1 Entrance and exit losses |
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262 | (3) |
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5.9 Adiabatic two-phase flow |
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265 | (1) |
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5.10 Practical cooling systems with microchannels |
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265 | (1) |
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5.11 Enhanced microchannel flow boiling systems |
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266 | (4) |
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267 | (1) |
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5.11.2 Microporous nanowire surfaces |
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267 | (1) |
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268 | (2) |
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5.12 Novel open microchannels with manifold |
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270 | (1) |
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271 | (13) |
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271 | (1) |
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272 | (6) |
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278 | (1) |
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278 | (6) |
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284 | (11) |
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284 | (1) |
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284 | (1) |
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284 | (1) |
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284 | (1) |
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285 | (10) |
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Chapter 6 Condensation in Minichannels and Microchannels |
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295 | (200) |
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295 | (5) |
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6.1.1 Defining microchannel condensation |
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297 | (2) |
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6.1.2 Chapter organization and contents |
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299 | (1) |
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300 | (40) |
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6.2.1 Adiabatic air--water flow in microchannels |
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301 | (25) |
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326 | (12) |
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6.2.3 Summary observations and recommendations |
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338 | (2) |
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340 | (16) |
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6.3.1 Void fraction in adiabatic flow through mini- and microchannels |
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346 | (6) |
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6.3.2 Void fraction in condensing flow through mini- and microchannels |
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352 | (2) |
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6.3.3 Summary observations and recommendations |
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354 | (2) |
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356 | (33) |
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6.4.1 Classical correlations |
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364 | (2) |
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6.4.2 Condensation or adiabatic liquid--vapor flows for ~ 2 < DH < ~ 10 mm |
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366 | (3) |
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6.4.3 Adiabatic flows through mini- and microchannels |
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369 | (7) |
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6.4.4 Condensing flows through mini- and microchannels |
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376 | (12) |
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6.4.5 Summary observations and recommendations |
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388 | (1) |
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6.5 Heat transfer coefficients |
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389 | (48) |
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6.5.1 Conventional channel models and correlations |
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389 | (32) |
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6.5.2 Condensation in small channels |
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421 | (14) |
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6.5.3 Summary observations and recommendations |
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435 | (2) |
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437 | (41) |
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Example 6.1 Flow regime determination |
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439 | (1) |
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439 | (1) |
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440 | (1) |
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441 | (2) |
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443 | (1) |
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444 | (1) |
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445 | (2) |
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Coleman and Garimella (2000a,b, 2003) |
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447 | (1) |
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448 | (2) |
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Example 6.2 Void fraction calculation |
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450 | (1) |
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450 | (1) |
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450 | (1) |
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450 | (2) |
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452 | (1) |
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452 | (1) |
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Lockhart and Martinelli (1949) |
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452 | (1) |
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453 | (1) |
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453 | (1) |
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453 | (1) |
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454 | (1) |
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454 | (1) |
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455 | (1) |
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Example 6.3 Pressure drop calculation |
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455 | (2) |
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457 | (1) |
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Lockhart and Martinelli (1949) |
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458 | (1) |
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459 | (1) |
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459 | (1) |
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Mishima and Hibiki (1996b) |
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460 | (1) |
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461 | (1) |
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461 | (1) |
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462 | (1) |
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462 | (1) |
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463 | (1) |
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463 | (1) |
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Cavallini et al. (2001, 2002a) |
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464 | (1) |
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465 | (2) |
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Example 6.4 Calculation of heat transfer coefficients |
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467 | (1) |
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467 | (1) |
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468 | (1) |
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469 | (1) |
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470 | (2) |
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472 | (1) |
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472 | (1) |
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473 | (2) |
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Boyko and Kruzhili (1967) |
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475 | (1) |
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475 | (1) |
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476 | (2) |
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478 | (17) |
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481 | (14) |
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Chapter 7 Biomedical Applications of Microchannel Flows |
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495 | (52) |
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495 | (1) |
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7.2 Microchannels to probe transient cell adhesion under flow |
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496 | (8) |
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7.2.1 Different types of microscale flow chambers |
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497 | (2) |
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7.2.2 Inverted systems: well-defined flow and cell visualization |
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499 | (3) |
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7.2.3 Lubrication approximation for a gradually converging (or diverging) channel |
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502 | (2) |
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7.3 Blood capillaries and "optimal bumpiness" for minimization of flow resistance |
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504 | (2) |
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7.4 Circular cross-section microchannels for blood flow research |
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506 | (2) |
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7.5 Nanoscale roughness in microtubes: effects on cell adhesion and biological applications |
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508 | (3) |
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7.6 Microchannels and minichannels as bioreactors for long-term cell culture |
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511 | (7) |
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7.6.1 Radial membrane minichannels for hematopoietic blood cell culture |
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512 | (2) |
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7.6.2 The bioartificial liver: membranes enhance mass transfer in planar microchannels |
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514 | (2) |
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7.6.3 Oxygen and lactate transport in micro-grooved minichannels for cell culture |
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516 | (2) |
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7.7 Microspherical cavities for cell sorting and tumor growth models |
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518 | (6) |
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7.8 Generation of normal forces in cell detachment assays |
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524 | (5) |
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7.8.1 Potential flow near an infinite wall |
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525 | (1) |
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7.8.2 Linearized analysis of uniform flow past a wavy wall |
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526 | (3) |
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7.9 Small-bore microcapillaries to measure cell mechanics and adhesion |
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529 | (5) |
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530 | (1) |
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7.9.2 Micropipette aspiration |
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531 | (2) |
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7.9.3 Particle transport in rectangular microchannels |
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533 | (1) |
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534 | (4) |
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534 | (2) |
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536 | (2) |
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538 | (1) |
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538 | (1) |
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538 | (9) |
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538 | (1) |
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539 | (1) |
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539 | (1) |
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539 | (1) |
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539 | (1) |
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539 | (1) |
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540 | (1) |
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540 | (1) |
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540 | (1) |
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541 | (6) |
Index |
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547 | |