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By taking the erect stubble of oats farmland,cole farmland,grass-millet farmland in Inner Mongolia Academy of Agricultural Sciences Wuchuan dry Experimental Station as the study object,anti-wind erosion capabilities of the different crops have been studied,all of these researches have provided scientific basis To reduce soil erosion and improve agricultural production. The trial utilizes of movable wind tunnel tests for different types of crops,stubble height,overlay degree of the field,and study the protection ability of the stubble band,and study the application of orthogonal design to arrange tests.The Erect Stubble Height of naked oats farmland,cole farmland,grass-millet farmland is 10cm,20cm,30cm, the residue coverage is 20%,30%,40%. The paper used Fluent,a software of computational fluid dynamics,to simulate the 0FDY-1.2 movable wind-tunnel indoor test in numerical simulation of air flow.Intuitive understanding of crop stubble on the wind tunnel flow field.It established the 3D model of wind-tunnel indoor test and the parameters needed in numerical simulation on the software. It successfully simulated the wind velocity flowing situation of wind-tunnel indoor test.
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