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E-raamat: Analytical Groundwater Modeling: Theory and Applications using Python

(Edinsi Groundwater, The Netherlands), (TU Delft, Faculty of Civil Engineering and Geosciences, Delft, The Netherlands)
  • Formaat: 242 pages
  • Ilmumisaeg: 30-Jun-2022
  • Kirjastus: CRC Press
  • ISBN-13: 9781351796101
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Analytical Groundwater Modeling: Theory and Applications using PythonSuurem pilt
  • Formaat: 242 pages
  • Ilmumisaeg: 30-Jun-2022
  • Kirjastus: CRC Press
  • ISBN-13: 9781351796101
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This book provides a detailed description of how Python can be used to give insight into the flow of groundwater based on analytic solutions. Starting with simple problems to illustrate the basic principles, complexity is added step by step to show how one-dimensional and two-dimensional models of one or two aquifers can be implemented. Steady and transient flow problems are discussed in confined, semi-confined, and unconfined aquifers that may include wells, rivers, and areal recharge. Special consideration is given to coastal aquifers, including the effect of tides and the simulation of interface flow.

Application of Python allows for compact and readable code, and quick visualization of the solutions. Python scripts are provided to reproduce all results. The scripts are also available online so that they can be altered to meet site-specific conditions. This book is intended both as training material for the next generation of university students and as a useful resource for practitioners. A primer is included for those who are new to Python or as a refresher for existing users.

Arvustused

'This is a fantastic addition to the analytical solutions and analytic element modeling canon with a modern approach to programming with Python. I hope readers will use it to learn and explore groundwater theory, and to up their game on making simple reality checks of complex systems to improve all groundwater modeling.'

'The authors do an excellent job of describing practically important calculations, like determining the critical flowrate at which a pumped well starts to induce flow from a nearby river.'

- Michael Fienen, Groundwater - NGWA, Book Review, 7 September 2022 'This is a fantastic addition to the analytical solutions and analytic element modeling canon with a modern approach to programming with Python. I hope readers will use it to learn and explore groundwater theory, and to up their game on making simple reality checks of complex systems to improve all groundwater modeling.'

'The authors do an excellent job of describing practically important calculations, like determining the critical flowrate at which a pumped well starts to induce flow from a nearby river.'

- Michael Fienen, Groundwater - NGWA, Book Review, 7 September 2022

Preface ix
About this book xi
Acknowledgement xiii
Authors xv
0 Basics of groundwater flow
1(1)
0.1 Hydraulic head
1(1)
0.2 Darcy's experiment
2(1)
0.3 Representative elementary volume
2(1)
0.4 Hydraulic conductivity and porosity
3(1)
0.5 Aquifers and aquitards
4(1)
0.6 Storage and transient flow
5(1)
0.7 Darcy's law for groundwater modeling
6(1)
0.8 Dupuit and Forchheimer
7(1)
0.9 Groundwater models
7(2)
1 Steady one-dimensional flow with constant transmissivity
9(16)
1.1 Flow between two rivers
10(3)
1.2 Areal recharge between two rivers
13(5)
1.3 Areal recharge between an impermeable boundary and a river
18(4)
1.4 Flow through two zones of different transmissivities
22(3)
2 Steady one-dimensional semi-confined flow
25(18)
2.1 Flow from a canal to a drained area
26(3)
2.2 Flow between a lake and a drained area
29(3)
2.3 Flow to a long river of finite width
32(3)
2.4 Flow to a river in a two-aquifer system
35(4)
2.5 Areal recharge between two rivers in a two-aquifer system
39(4)
3 Steady one-dimensional unconfined flow with variable saturated thickness
43(12)
3.1 Areal recharge between an impermeable boundary and a river
44(4)
3.2 Flow over a step in the aquifer base
48(2)
3.3 Combined confined/unconfined flow with areal recharge
50(5)
4 Steady one-dimensional flow in coastal aquifers
55(14)
4.1 Confined interface flow
56(4)
4.2 Unconfined interface flow
60(4)
4.3 Combined confined/semi-confined interface flow
64(5)
5 Transient one-dimensional flow
69(26)
5.1 Step changes in surface water level
70(7)
5.2 Periodic changes in surface water level
77(3)
5.3 Areal recharge between two rivers
80(7)
5.4 Solutions with Laplace transforms
87(4)
5.5 Unconfined flow with variable transmissivity
91(4)
6 Steady two-dimensional flow to wells
95(22)
6.1 Radially symmetric flow on a circular island
98(4)
6.2 Wells near rivers and impermeable boundaries
102(6)
6.3 Wells near an inhomogeneity boundary
108(2)
6.4 Wells in a semi-confined aquifer
110(3)
6.5 Wells in a two-aquifer system
113(4)
7 Steady two-dimensional flow to wells in uniform background flow
117(20)
7.1 A single well in uniform background flow
117(5)
7.2 Well capture zones
122(2)
7.3 A well in uniform background flow near a river
124(5)
7.4 A well in uniform background flow near a river with a leaky stream bed
129(5)
7.5 A well in uniform background flow near the coast
134(3)
8 Analytic element modeling of steady two-dimensional flow
137(14)
8.1 Uniform flow and wells
137(7)
8.2 Line-sinks for modeling rivers and streams
144(4)
8.3 Area-sinks for modeling areal recharge
148(3)
9 Transient two-dimensional flow
151(20)
9.1 Wells in confined and unconfined aquifers
152(6)
9.2 Wells with a periodic discharge
158(2)
9.3 Wells in a semi-confined aquifer
160(4)
9.4 Wells with wellbore storage and skin effect
164(3)
9.5 Wells in a two-aquifer system
167(4)
10 Steady two-dimensional flow in the vertical plane
171(28)
10.1 Vertical anisotropy
172(2)
10.2 Flow to a partially penetrating stream
174(7)
10.3 Flow over a step in the base
181(4)
10.4 Spatially varying head at the top of the aquifer
185(5)
10.5 Interface flow towards the coast
190(4)
10.6 Interface flow below a strip island
194(5)
A Python primer
199(20)
A.1 Basics
200(3)
A.2 Loops and if statements
203(2)
A.3 The numpy package and arrays
205(5)
A.4 The matplotlib package for visualization
210(3)
A.5 Functions
213(3)
A.6 The scipy package for scientific computing
216(3)
Numerical answers to selected problems 219(2)
Bibliography 221(4)
Index 225
Mark Bakker is a groundwater engineer and a professor at the faculty of Civil Engineering and Geosciences of the Delft University of Technology. He has taught groundwater and Python classes for more than two decades and is the originator and co-developer of many Python-based open-source modeling tools, including Timml, Ttim, Pastas, and Flopy.

Vincent Post is a hydrogeologist with research interests in coastal hydrogeology and groundwater quality. After a career in academia and research he founded Edinsi Groundwater in 2021. Python has become indispensable in his everyday professional life, and he actively promotes its use in hydrogeology by teaching courses and developing Python-based tools.
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