Simulation Effect of Preventing Wind and Combating Sand of Simulated Sand-fixing Shrub in Wind Tunnel Testing

SUN Tao; WANG Ji-he; MAN Duo-qing; WU Chun-rong; LIU Hu-jun; MA Quan-lin; ZHU Guo-qing

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Simulation Effect of Preventing Wind and Combating Sand of Simulated Sand-fixing Shrub in Wind Tunnel Testing

更新时间：2024-11-07

- Simulation Effect of Preventing Wind and Combating Sand of Simulated Sand-fixing Shrub in Wind Tunnel Testing
- Vol. 25, Issue 6, (2011)
- 作者机构：
  
  甘肃省治沙研究所/甘肃省荒漠化与风沙灾害防治重点实验室培育基地
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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SUN Tao, WANG Ji-he, MAN Duo-qing, et al. Simulation Effect of Preventing Wind and Combating Sand of Simulated Sand-fixing Shrub in Wind Tunnel Testing[J]. 2011, 25(6).
DOI：

SUN Tao, WANG Ji-he, MAN Duo-qing, et al. Simulation Effect of Preventing Wind and Combating Sand of Simulated Sand-fixing Shrub in Wind Tunnel Testing[J]. 2011, 25(6). DOI：

摘要

仿真固沙灌木是一种由抗老化的高分子化合物聚合而成并具有与油蒿、沙蒿等沙生灌木相似外部形状的新型防风固沙材料。在风洞内对不同疏透度(β)的仿真固沙灌木

在7

15m/s的实验风速下进行模拟研究

测定其防风与积沙效应

探讨输沙量与风速和疏透度之间的关系。结果表明:仿真固沙灌木在不同风速条件下

整个风速流场过程可分为灌木前部、灌木内部、灌木后部3个区域

形成6个减速区和4个加速区

共10个新能区。其中

障前H、0.5H区域和障后0.5H～3H区域为主要的风速削减区。不同疏透度的仿真固沙灌木在不同风速条件下其水平风速降低趋势一致

平均降幅在35%～46%之间

其中

枝条数20根、疏透度(β)为36%～41%的仿真固沙灌木降幅最大。不同疏透度仿真固沙灌木障后输沙量随风速增加而增大

但其阻沙效益差异显著

疏透度(β)为36%～41%的仿真植物在不同风速下阻沙效益稳定

表现好。从仿真植物的构型设计与生产成本、防护效应及实际设置等方面综合考虑

初步确定仿真固沙灌木最佳疏透度(β)应在30%～40%之间

枝条数量在16～20根之间较为合适。

Abstract

Simulated sand-fixing shrub is a new type of preventing wind and combating sand material which is made of high polymer materials mingled with antiaging agents in accordance with the simulation principle

its shape is as same as the shape of wild desert shrubs such as Artemisisa desertorum

Artemisia ordosica etc.having good effects in reducing wind and fixing sand.The different porosity of simulated sand-fixing shrubs were tested to their capacity of preventing wind and combating sand in the wind tunnel under...

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ZONG Yumei1

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Key Laboratory of Desert Desertification,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences

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