Non-Hydrostatic Free Surface Flows

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Hauptverfasser: Castro-Orgaz, Oscar (VerfasserIn), Hager, Willi H. 1951- (VerfasserIn)
Format: Elektronisch E-Book
Sprache:English
Veröffentlicht: Cham Springer [2017]
Schriftenreihe:Advances in Geophysical and Environmental Mechanics and Mathematics
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Datensatz im Suchindex

DE-BY-TUM_katkey 2258382
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adam_text 4 Contents I 1 Introduction 1 1 1 Aim and Scope 2 1 2 Hydrostatic and Non-hydrostatic Free Surface Flows 3 1 3 Historical Background 5 1 4 Non-hydrostatic Flows and Environmental Mechanics 12 1 5 Methodology 13 References 15 2 Vertically Integrated Non-hydrostatic Free Surface Flow Equations 17 2 1 Introduction 19 2 2 Vertically Integrated Equations in Continuum Mechanical Description 21 221 Basic Conservation Laws 21 222 Depth-Integrated Continuity Equation 23 223 Depth-Integrated Momentum Equations in Horizontal Plane 25 224 Non-hydrostatic Stresses in z-Direction and Vertical Velocity Profile 26 2 3 Shallow Flow Approximation and Depth-Averaged Equations 29 2 4 Simplified Forms of Non-hydrostatic Extended Flow Equations 33 241 RANS Model for River Flow 33 242 One-Dimensional Water Waves Over Horizontal Topography 34 243 Turbulent Uniform Flow on Steep Terrain 36 244 Flows Over Curved Beds 39 245 Enhanced Gravity 41 246 Non-hydrostatic Model Including Friction Effects 43 xi Contents xii 2 5 Sediment Transport and Movable Beds 45 251 Introduction 45 252 Non-hydrostatic Unsteady Free Surface Flow with Bed-Load Sediment Transport 49 2 6 Numerical Methods for Boussinesq-Type Models 57 261 Unsteady Flow Simulations 57 262 Steady Flow Simulations 65 2 7 Higher-Order Equations 66 271 Fawer-Type Equations 66 272 Moment Equations 70 References 73 3 Inviscid Channel Flows 81 3 1 Introduction 84 3 2 Potential Flow Theory 90 321 Fundamentals 90 322 Conservation Laws 92 323 Flow Net 98 3 3 Picard Iteration 100 331 General Aspects of Iterative Solutions 100 332 Second-Order Velocity Field 100 333 Third-Order Velocity Field 106 3 4 Approximate Treatment of Flow Net Geometry 108 341 Velocity Profile 108 342 Extended Equations 110 3 5 Curvilinear Coordinates: Dressler’s Theory 118 351 Governing Equations for Potential Flow 118 352 Picard Iteration in Curvilinear Coordinates 119 353 Dressler’s Theory 122 354 Second-Order Dressier-Type Model 127 3 6 Critical Flow Conditions in Curved Streamline Flows 129 361 Critical Irrotational Flows 129 362 Minimum Specific Energy 133 363 Maximum Discharge 143 3 7 2D Solution of Irrotational Flows: The x-i}/ Method 146 371 Semi-inverse Mapping 146 372 Boundary Conditions at Up- and Downstream Sections 149 373 Free Surface Profile and Energy Head 149 374 Solution of Laplacian Field 150 375 Determination of Velocity and Pressure Distributions 152 3 8 Free Overfall 153 381 Picard Iteration 153 382 Curvilinear Flow at the Brink Section 168 Contents 3 9 3 10 3 11 383 Moment of Momentum Method 384 Two-Dimensional Solution 385 Row Net Transition from Mild to Steep Slopes 391 Picard Iteration 392 Two-Dimensional Solution 393 Row Net Flow Over Round-Crested Weirs 3 10 1 Picard Iteration 3 10 2 Dressler’s Theory 3 10 3 Two-Dimensional Solution 3 10 4 Row Nets Sharp-Crested Weir 3 11 1 Critical Row 3 11 2 Profile of High Dams 4 3 12 Critical Flow Over Weir Profiles 3 12 1 Jaeger’s Theory 3 12 2 Fawer’s Theory 3 13 Standard Sluice Gate 3 13 1 Free Jet Flow 3 13 2 Approach Flow 3 13 3 Gate Pressure Distribution 3 13 4 Bottom Pressure Distribution 3 14 Vorticity Effects 3 14 1 Vorticity Equation for Streamline 3 14 2 Velocity Profile 3 14 3 Free Overfall 3 15 Water Waves 3 15 1 Irrotational Water Waves 3 15 2 Serre-Green-Naghdi Equations 3 15 3 Small-Amplitude Waves 3 15 4 Cnoidal and Solitary Waves 3 15 5 Dam Break Wave References Seepage Flows 4 1 Introduction 4 2 Picard Iteration 421 Generalized Water Table Equation 422 Particular Cases 4 3 Dupuit-Fawer Equations 431 Generalized Water Table Equation 432 Particular Cases xiii 177 184 193 195 195 206 210 212 212 214 216 221 226 226 234 239 239 247 254 254 258 259 261 264 264 268 271 275 275 277 282 291 303 309 317 319 324 324 326 327 327 330 Contents xiv 4 4 Polubarinova-Kochina’s Rectangular Dam Seepage Problem 332 441 Picard Iteration 332 442 Validity of the Dupuit-Forchheimer Theory 344 443 Shallow Flow Approximation 350 444 Validity of Jaeger’s Theory 353 445 Dupuit-Fawer Equations 356 4 5 Flow Through Trapezoidal Dam 358 4 6 Drainage of Recharge 360 461 Horizontal Aquifer 360 462 Sloping Aquifer 373 463 Curved Aquifer 374 4 7 Flow Over Planar Bedrock with Slope Discontinuity 375 4 8 Bank Storage Problem 377 481 Picard’s Iteration for Anisotropic Porous Media 377 482 Analytical Solution and Numerical Method 383 483 Validity of Second-Order Solutions 388 References 390 5 Viscous Channel Flows 393 5 1 Introduction 398 5 2 Boundary Layer Approximation 402 521 Scale Effects of Round-Crested Weir Flow 402 522 Developing Flow on Steep Slopes 426 5 3 Undular Hydraulic Jump 439 531 Introduction 439 532 Depth-Averaged RANS Equations 446 533 Serre’s Theory 457 534 Boundary Layer Model 463 535 Simulations: Plane Undular Jump 466 536 Simulations: Spatial Undular Jump 473 5 4 Undular Weir Flow 479 5 5 Hydraulic Jump 481 551 Submerged Hydraulic Jump 481 552 Classical Hydraulic Jump 484 5 6 Boussinesq’s Original Theory for Non-hydrostatic Turbulent Open-Channel Flows 485 561 Introduction 485 562 Equations of Motion 485 563 Turbulent Velocity Profile 490 564 Differential Equation Describing Water Surface Profiles 497 565 Linearized Equation Valid for Water Depths Close to the Normal Depth 500 566 Classification of Free Surface Profiles 508 567 Boussinesq and the Solitary Wave 510 Contents xv 5 7 Spatially Varied Flows 513 571 Hydrodynamic Equations 513 572 Side-Weir Flow 517 573 Bottom Outlet Flow 520 574 Side-Channel Flows 524 575 Test Case: Flow Over Bottom Rack 524 5 8 Compound Channel Flows 528 581 Introduction to Gradually Varied Flow 528 582 Extended Serre Theory 531 5 9 Sand Solitary Wave 535 591 Existence of Sand Solitary Waves 535 592 Governing Equations 536 593 Analytical Solution 539 5 10 Dike Breaches 544 5 10 1 Extended Serre Theory 544 5 10 2 Experimental Investigation 551 References 553 6 Granular Flows 563 6 1 Introduction 564 6 2 Mixture Flow Equations 567 6 3 Depth-averaged Equations for Dry Granular Flows 568 631 ID Savage-Hutter Theory Down an Inclined Plane 568 632 Effect of Bed-Normal Velocity 571 6 4 Simplified Solutions 573 641 Pseudo-uniform Flow Conditions 573 642 Granular Solitary Wave 574 643 Granular Free Overfall 577 6 5 ID Hutter-Serre Enhanced Equations Down an Inclined Plane 579 References 580 7 Concluding Remarks 585 References 587 Appendix A: Pressure Distribution in Flows Over Curved Bed 589 Appendix B: Second Picard Iteration Cycle in Cartesian Coordinates 593 Appendix C: Picard Iteration in Curvilinear Coordinates 599 Appendix D: Derivation of the Laplace Equation for the Transformation 607 Appendix E: Plane Open-Channel Flow Using Flow Net-Based Coordinates 613 XVI Contents Appendix F: Specific Energy for Flow Over Curved Bottoms 621 Appendix G: Viscous Boussinesq-type equations 631 Appendix H: Non-hydrostatic Gradually Varied Flow on Steep Slopes 639 Appendix I: Derivation of Vertically Integrated Equations for Non-hydrostatic Mixture Flows 653 Appendix J: Layer-Integrated Equations for Mixture Flows 669 Author Index 681
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spellingShingle Castro-Orgaz, Oscar
Hager, Willi H. 1951-
Non-Hydrostatic Free Surface Flows
Earth sciences
Hydrology
Hydrogeology
Geotechnical engineering
Fluid mechanics
Earth Sciences
Geotechnical Engineering & Applied Earth Sciences
Hydrology/Water Resources
Engineering Fluid Dynamics
Geowissenschaften
title Non-Hydrostatic Free Surface Flows
title_auth Non-Hydrostatic Free Surface Flows
title_exact_search Non-Hydrostatic Free Surface Flows
title_full Non-Hydrostatic Free Surface Flows Oscar Castro-Orgaz, Willi H. Hager
title_fullStr Non-Hydrostatic Free Surface Flows Oscar Castro-Orgaz, Willi H. Hager
title_full_unstemmed Non-Hydrostatic Free Surface Flows Oscar Castro-Orgaz, Willi H. Hager
title_short Non-Hydrostatic Free Surface Flows
title_sort non hydrostatic free surface flows
topic Earth sciences
Hydrology
Hydrogeology
Geotechnical engineering
Fluid mechanics
Earth Sciences
Geotechnical Engineering & Applied Earth Sciences
Hydrology/Water Resources
Engineering Fluid Dynamics
Geowissenschaften
topic_facet Earth sciences
Hydrology
Hydrogeology
Geotechnical engineering
Fluid mechanics
Earth Sciences
Geotechnical Engineering & Applied Earth Sciences
Hydrology/Water Resources
Engineering Fluid Dynamics
Geowissenschaften
url https://doi.org/10.1007/978-3-319-47971-2
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