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E-raamat: Three-dimensional Separated Flows Topology / Singu lar Points, Beam Splitters and Vortex Structures: Critical Points, Separation Lines and Vortical Structures [Wiley Online]

(ONERA, France)
  • Formaat: 176 pages
  • Sari: Focus Series
  • Ilmumisaeg: 15-Feb-2013
  • Kirjastus: ISTE Ltd and John Wiley & Sons Inc
  • ISBN-10: 1118578546
  • ISBN-13: 9781118578544
Teised raamatud teemal:
  • Wiley Online
  • Hind: 174,45 €*
  • * hind, mis tagab piiramatu üheaegsete kasutajate arvuga ligipääsu piiramatuks ajaks
  • Formaat: 176 pages
  • Sari: Focus Series
  • Ilmumisaeg: 15-Feb-2013
  • Kirjastus: ISTE Ltd and John Wiley & Sons Inc
  • ISBN-10: 1118578546
  • ISBN-13: 9781118578544
Teised raamatud teemal:

This book develops concepts and a methodology for a rational description of the organization of three-dimensional flows considering, in particular, the case where the flow is the place of separations. The descriptive analysis based on the critical point theory of Poincaré develops conventional but rather unfamiliar considerations from aerodynamicists, who face the understanding of complex flows including multiple separation lines and vortices. These problems concern industrial sectors where aerodynamics plays a key role, such as aerospace, ground vehicles, buildings, etc.

Contents

1. Skin Friction Lines Pattern and Critical Points.
2. Separation Streamsurfaces and Vortex Structures.
3. Separated Flow on a Body.
4. Vortex Wake of Wings and Slender Bodies.
5. Separation Induced by an Obstacle or a Blunt Body.
6. Reconsideration of the Two-Dimensional Separation.
7. Concluding Remarks.

About the Authors

Jean Délery is a Supaero (French National Higher School of Aeronautics and Space) engineer who has worked at Onera (French national aerospace research center) since 1964. He has participated in several major French and European aerospace programs, is the author of many scientific publications, and has occupied various teaching positions particularly at Supaero, the University of Versailles-Saint-Quentin, Ecole polytechnique in France and “La Sapienza” University in Rome, Italy. He is currently emeritus adviser at Onera.

Introduction ix
Chapter 1 Skin Friction Lines Pattern and Critical Points
1(26)
1.1 Basic properties of the three-dimensional boundary layer
1(4)
1.2 Skin friction lines and surface flow pattern
5(3)
1.3 Critical points of the skin friction line pattern
8(16)
1.3.1 General solution and the eigenvalue problem
8(6)
1.3.2 The different critical points
14(10)
1.4 Critical points of the wall vorticity lines
24(3)
Chapter 2 Separation Streamsurfaces and Vortex Structures
27(20)
2.1 Generalization to the flow field and three-dimensional critical points
27(5)
2.2 Separation and attachment lines
32(4)
2.3 Streamsurfaces of separation and attachment
36(4)
2.4 Vortical structures
40(2)
2.5 Some properties of a vortical structure
42(5)
Chapter 3 Separated Flow on a Body
47(22)
3.1 Basic rules and definitions
47(2)
3.2 General definition: the basic separated structures
49(7)
3.3 Field associated with a separation with one saddle point and three nodes: the horseshoe vortex
56(6)
3.4 Field associated with a separation with one point and two foci: the tornado-like vortex
62(7)
Chapter 4 Vortex Wake of Wings and Slender Bodies
69(22)
4.1 Vortical structures over a delta wing
69(8)
4.2 Vortical flow over a slender body
77(5)
4.3 Vortex wake of a classical wing
82(9)
4.3.1 Topological description
82(6)
4.3.2 A scenario for the origin of vortices on a wing
88(3)
Chapter 5 Separation Induced by an Obstacle or a Blunt Body
91(30)
5.1 Separation in front of an obstacle
91(6)
5.2 Flow induced by an obstacle of finite height or protuberance
97(6)
5.3 Separation on a non-propelled afterbody
103(7)
5.4 The flow past an automobile
110(11)
5.4.1 The surface flow pattern
110(6)
5.4.2 Separation surfaces
116(5)
Chapter 6 Reconsideration of the Two-Dimensional Separation
121(22)
6.1 Some definitions: a reminder
121(2)
6.2 Two-dimensional separation
123(1)
6.3 Special critical points
123(8)
6.4 Three-dimensional structure of a two-dimensional separated flow
131(1)
6.5 Axisymmetric afterbody
131(12)
Chapter 7 Concluding Remarks
143(4)
Bibliography 147(4)
List of Symbols 151(2)
Index 153
Jean Délery is a Supaero (French National Higher School of Aeronautics and Space) engineer who has worked at Onera (French national aerospace research center) since 1964. He has participated in several major French and European aerospace programs, is the author of many scientific publications, and has occupied various teaching positions particularly at Supaero, the University of Versailles-Saint-Quentin, Ecole polytechnique in France and La Sapienza University in Rome, Italy. He is currently emeritus adviser at Onera.