Experimental study on the sampling efficiency of the whirl type separation sand sampler in a wind tu

• 作 者: ManQuan Zhao LiHong Fu WenMing
• 机 构: Mechanical and Electrical Engineering College,Xingtai Polytechnic College
• 出 处: 寒旱区科学（英文版）
• 发表日期: 2004年期
• 关键词: soil and water conservation sand sampler wind erosion wind tunnel sand collectio

A performance test was conducted in a wind tunnel by changing the principal configuration parameters of a sampler such as the diameter of the container,inlet width and cone height.The results show that the average sand collection rate is from 80% to 90% when any one of the configuration parameter levels is changed.However,the variation of a parameter level results in different effects on the sand collection rate for each soil sample within a certain size range of sand grains.The results show that for various sand grain sized soil sample at each wind speed,the sand collection rate decreases when the diameter of the container changes from 50 mm to 40 mm,the sand collection rate increases by about 2%-3% when the inlet width changes from 10 mm to 8 mm,and the sand collection rate increases by about 3%-4% when cone height is altered from 100 mm to 125 mm.The average sand collection rate is enhanced by 2%-4% for the soil sample of different sized sand grains when the diameter of the container is 50 mm,the inlet width is 8 mm,and cone height is 125 mm.