A NUMERICAL MODEL FOR PREDICTION OF THRESHOLD VELOCITY OF MOVING-SAND TRANSPORT IN DESERTS

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BIDOKHTI A.; MALEKIFARD F.; MIRROKNI M.

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ISSN: 2588-4824

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Journal: Desert Year:2003 | Volume:8 | Issue:1 Page(s): 127-136

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Title

A NUMERICAL MODEL FOR PREDICTION OF THRESHOLD VELOCITY OF MOVING-SAND TRANSPORT IN DESERTS

Author(s)

BIDOKHTI A. | MALEKIFARD F. | MIRROKNI M. | Issue Writer Certificate

Keywords

CENTRAL IRANQ4

MOVING-SANDQ2

NUMERICAL MODELQ4

SAND FLUXQ4

THRESHOLD VELOCITYQ4

Abstract

The processes associated with sand transport have been studied intensively in recent years based on laboratory simulation, direct measurements and field observations. In addition to stimulation of wind-blown sand transport processes, efforts have been made to design an empirical/analytical model based on simple principles of MOVING-SAND transport due to turbulent stress near the surface. In this study, surface momentum flux at the boundary of sand-air, which is the main element of sand transport was parameterized. Here, we report the development and use of a NUMERICAL MODEL based on volume of fluid (VOF) method to estimate the THRESHOLD VELOCITY for MOVING-SAND motion. Typical value for MOVING-SAND in this model was found to be in the range of 20-25 Kg m-1hr-1. Such a model could be used to study sand transport and predict sand motions in desert areas such as the CENTRAL IRAN.

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APA: Copy

BIDOKHTI, A., MALEKIFARD, F., & MIRROKNI, M.. (2003). A NUMERICAL MODEL FOR PREDICTION OF THRESHOLD VELOCITY OF MOVING-SAND TRANSPORT IN DESERTS. DESERT (BIABAN), 8(1), 127-136. SID. https://sid.ir/paper/5304/en

Vancouver: Copy

BIDOKHTI A., MALEKIFARD F., MIRROKNI M.. A NUMERICAL MODEL FOR PREDICTION OF THRESHOLD VELOCITY OF MOVING-SAND TRANSPORT IN DESERTS. DESERT (BIABAN)[Internet]. 2003;8(1):127-136. Available from: https://sid.ir/paper/5304/en

IEEE: Copy

A. BIDOKHTI, F. MALEKIFARD, and M. MIRROKNI, “A NUMERICAL MODEL FOR PREDICTION OF THRESHOLD VELOCITY OF MOVING-SAND TRANSPORT IN DESERTS,” DESERT (BIABAN), vol. 8, no. 1, pp. 127–136, 2003, [Online]. Available: https://sid.ir/paper/5304/en

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