Evolution of crescent-shaped influence of injected sand flux： tunnel experiment sand dune under the scaling law and wind
This paper studies the evolution of crescent-shaped dune under the influence of injected flux. A scaling law and a wind tunnel experiment are carried out for comparison. The experiment incorporates a novel image processing algorithm to recover the evolutionary process. The theoretical and experiment...
Saved in:
| Published in | 干旱区科学：英文版 Vol. 9; no. 2; pp. 270 - 277 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
2017
|
| Online Access | Get full text |
Cover
Loading…
| Summary: | This paper studies the evolution of crescent-shaped dune under the influence of injected flux. A scaling law and a wind tunnel experiment are carried out for comparison. The experiment incorporates a novel image processing algorithm to recover the evolutionary process. The theoretical and experimental results agree well in the middle stage of dune evolution, but deviate from each other in the initial and final stages, suggesting that the crescent-shaped dune evolution is intrinsically scale-variant and that the crescent shape breaks down under unsaturated condition. |
|---|---|
| Bibliography: | 65-1278/K This paper studies the evolution of crescent-shaped dune under the influence of injected flux. A scaling law and a wind tunnel experiment are carried out for comparison. The experiment incorporates a novel image processing algorithm to recover the evolutionary process. The theoretical and experimental results agree well in the middle stage of dune evolution, but deviate from each other in the initial and final stages, suggesting that the crescent-shaped dune evolution is intrinsically scale-variant and that the crescent shape breaks down under unsaturated condition. crescent-shaped sand dune; scale-invariant model; wind tunnel experiment; image processing |
| ISSN: | 1674-6767 |