Numerical modelling of flow structures over idealized transverse aeolian dunes of varying geometry

Geomorphology

Volumn 59, Issue 1-4, 2004, Pages 149-164

  Parsons, Daniel R ^a   Walker, Ian J ^b   Wiggs, Giles F S ^c  

^a UNIVERSITY OF LEEDS   (United Kingdom)

^b UNIVERSITY OF VICTORIA   (Canada)

^c UNIVERSITY OF SHEFFIELD   (United Kingdom)

Author keywords

Aeolian; Aspect ratio; Computational Fluid Dynamics (CFD); Dunes; Flow acceleration; Flow recovery; Flow reversal; Flow separation

Indexed keywords

COMPUTATIONAL FLUID DYNAMICS; DUNE; FLOW OVER SURFACE; SEDIMENT TRANSPORT; VELOCITY PROFILE;

COMPUTATIONAL FLUID DYNAMICS; DUNE; EOLIAN PROCESS; FLOW OVER SURFACE; SEDIMENT TRANSPORT; VELOCITY PROFILE;

EID: 1842482968     PISSN: 0169555X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.geomorph.2003.09.012     Document Type: Article

References (41)

1. Bates P.D. Lane S.N. High Resolution Flow Modelling Hydrological Processes 12 1998 1129-1396 Special issue
2. Bennett S.J. Best J.L. Mean flow and turbulence structure over fixed, two-dimensional dunes: implications for sediment transport and bedform stability Sedimentology 42 1995 491-513
3. Best J.L. Kostaschuk R.A. An experimental study of turbulent flow over a low-angle dune Journal of Geophysical Research 107 2002 3135-3154
4. Bowen A.J. Lindley D. A wind tunnel investigation of the wind speed and turbulence characteristics close to the ground over various escarpment shapes Boundary - Layer Meteorology 12 1977 259-271
5. Bradbrook K.F. Biron P. Lane S.N. Richards K.S. Roy A.G. Investigation of controls on secondary circulation and mixing processes in a simple confluence geometry using a three-dimensional numerical model Hydrological Processes 12 1998 1371-1396
6. Bradley F. An experimental study of the profiles of wind speed, shearing stress and turbulence at the crest of a large hill Quarterly Journal of the Royal Meteorological Society 106 1980 101
7. Bradshaw P. Wong F.Y.F. The reattachment and relaxation of a turbulent shear layer Journal of Fluid Mechanics 52 1972 113-135
8. Britter R.E. Hunt J.C.R. Richards K.J. Analysis and wind tunnel studies of speed up, roughness effects and turbulence over a two-dimensional hill Quarterly Journal of the Royal Meteorological Society 107 1981 91-110
9. Frank A. Kocurek G. Airflow up the stoss slope of sand dunes: limitations of current understanding Geomorphology 17 1996 47-54
10. Frank A. Kocurek G. Toward a model of airflow on the lee side of aeolian dunes Sedimentology 43 1996 451-458
11. Ginger J.D. Letchford C.W. Characteristics of large pressures in regions of flow separation Journal of Wind Engineering and Industrial Aerodynamics 49 1993 301-310
12. Jackson P.S. Hunt J.C.R. Turbulent wind flow over a low hill Quarterly Journal of the Royal Meteorological Society 101 1975 929-955
13. Lancaster N. Variations in wind velocity and sand transport rates on the windward flanks of desert sand dunes Sedimentology 32 1985 581-593
14. Lancaster N. Controls of aeolian dune size and spacing Geology 16 1988 972-975
15. Lancaster N. Dune morphology and dynamics Abrahams A.D. Parsons A.J. Geomorphology of Desert Environments 1994 474-505 Chapman - Hall London
16. Lancaster N. Nickling W.G. McKenna Neuman C. Wyatt V.E. Sediment flux and airflow on the stoss slope of a barchan dune Geomorphology 17 1996 55-62
17. McKenna Neuman C. The role of instrumentation in aeolian research: recent advances and future challenges Joint Meeting of the International Conference on Aeolian Research (ICAR5) and The Global Change and Terrestrial Ecosystem-Soil Erosion Network (GCTE-SEN), Texas Tech University, Lubbock, Texas, 22-25 July 2002
18. McKenna Neuman C. Lancaster N. Nickling W.G. Relations between dune morphology, air flow, and sediment flux on reversing dunes, Silver Peak, Nevada Sedimentology 44 1997 1103-1113
19. McKenna Neuman C. Lancaster N. Nickling W.G. The effect of unsteady winds on sediment transport on the stoss slope of a transverse dune, Silver Peak, NV, USA Sedimentology 47 2000 211-226
20. McLean S.R. Smith J.D. A model for flow over two-dimensional bed forms Journal of Hydraulic Engineering 112 1986 300-317
21. Nelson J.M. McLean S.R. Wolfe S.R. Mean flow and turbulence fields over two-dimensional bedforms Water Resources Research 29 1993 3935-3953
22. Nickling W.G. McKenna Neuman C. Recent investigations of airflow and sediment transport over desert dunes Goudie A.S. Livingstone I. Stokes S. Aeolian Environments, Sediments and Landforms 1999 15-47 Wiley Chichester
23. Nickling W.G. McKenna Neuman C. Lancaster N. Grainfall processes in the lee of transverse dunes, Silver Peak, Nevada Sedimentology 49 2002 191-209
24. Pantaankar S.V. Spalding D.B. A calculation procedure for heat, mass and momentum transport in three-dimensional parabolic flows International Journal of Heat and Mass Transfer 15 1972 1782-1799
25. Parsons, D.R., Wiggs, G.F.S., Walker, I.J., Garvey, B.G., in press. Time-averaged numerical modelling of airflow over an idealised transverse dune.
26. Raithby G.D. Stubley G.D. Taylor P.A. The Askervein hill Project: a finite control volume prediction of three dimensional flow over the hill Boundary - Layer Meteorology 39 1987 247-267
27. Spalding D.B. Zhang Q. ASAP-simulating flows with a Cartesian mesh Proceedings of the PHOENICS User Conference, Tokyo, 1996 1996
28. Stam J.M.T. On the modelling of two-dimensional aeolian dunes Sedimentology 44 1997 127-141
29. Tsoar H. Profile analysis of sand dunes and their steady state significance Geografiska Annaler 67A 1985 47-59
30. Walker I.J. Nickling W.G. Dynamics of secondary airflow and sediment transport over and in the lee of transverse dunes Progress in Physical Geography 26 2002 47-75
31. Walker, I.J., Nickling, W.G., in press (a). Mean flow and turbulence characteristics of simulated airflow over isolated and closely spaced transverse dunes. Sedimentology.
32. Walker, I.J., Nickling, W.G., in press (b). Simulation and measurement of surface shear stress over isolated and closely spaced transverse dunes. Earth Surface Processes and Landforms.
33. Walmsley J.L. Salmon J.R. Taylor P.A. On the application of a model of boundary-layer flow over low hills to real terrain Boundary - Layer Meteorology 23 1982 17-46
34. Waterson N.P. Validation of convection discretisation schemes VKI Dip Rep. 1994-33, Von Karmen Institute for Fluid Dynamics 1994 1-177 Rhode-Saint-Genese Belgium
35. Wiggs G.F.S. Desert dune dynamics and evaluation of wind velocity: an integrated approach Pye K. The Dynamics and Environmental Context of Aeolian Sedimentary Systems Geological Society Special Publication vol. 72 1993 37-46
36. Wiggs G.F.S. Desert dune processes and dynamics Progress in Physical Geography 25 2001 53-79
37. Wiggs G.F.S. Livingstone I. Warren A. The role of streamline curvature in sand dune dynamics: evidence from field and wind tunnel measurements Geomorphology 17 1996 29-46
38. Yakhot V. Orszag S.A. Thangam S. Gatshi T.B. Speziale C.G. Development of a turbulence model for shear flow by a double expansion technique Physics of Fluids. A, Fluid Dynamics 4 1992 1510-1520
39. Yang G. Causon D.M. Ingram D.M. Calculation of 3-D compressible flows around moving bodies 21st International Symposium on Shock Waves, Australia, July 20-25 1997
40. Yang G. Causon D.M. Ingram D.M. Saunders R. Batten P. A Cartesian cut-cell method for compressible problems: Part A. Static-body problems; Part B. Moving-body problems Aero Journal of the Royal Aeronautical Society 1997 47-65
41. Zeman O. Jensen N.O. Modification of turbulence characteristics in flow over hills Quarterly Journal of the Royal Meteorological Society 113 1987 55-80