在不同形状的防沙墙下沙纹形状及分布分析

论述了在塔里木盆地皮山-沙雅连线西北的塔克拉玛干沙漠西北边缘地带的流动沙漠区域进行的现场风洞试验.在试验中采用了四种形状的防沙墙,分别为直线型、半圆型、三角型、M字型.观测和测试了用不同形状的防沙墙时,沙波形成和性质的改变,同时进行了对比分析,为今后的计算机数值模拟提供了试验依据.

The Analysis of Sand Ripple Shape and Distribution under the Different Shape of Sand Windbreak

This paper discusses the experimental results, which are carried out at site scene in floating desert area of northwest edge region in the line of mountain Guma-Shaya of Tarim Basin in Northwest Taklimakan Desert. Four kinds of shape of sand windbreak walls are used in experiment. There are straight-line type?semi-circle type? triangle type and M-word type respectively. The process of sand ripple forming and moving has been observed and tested when using different shape of sand windbreak. At the same time, the contrast analysis is conducted, and this will provide experimental basis for the computational and numerical simulation in the future.