Simulation and experimental study on drag reduction and anti-adhesion of subsoiler with bionic surface  

作　　者：Jiping Niu Tongyun Luo Jiaqing Xie Haoxuan Cai Zhikang Zhou Jun Chen Shuo Zhang 

机构地区：[1]College of Water Resources and Architectural Engineering,Northwest A&F University,Yangling 712100,Shaanxi,China [2]College of Mechanical and Electronic Engineering,Northwest A&F University,Yangling 712100,Shaanxi,China

出　　处：《International Journal of Agricultural and Biological Engineering》2022年第4期57-64,共8页国际农业与生物工程学报（英文）

基　　金：This work was financially supported by Natural Science Basic Research Program of Shaanxi(Program No.2021JQ-173);Innovation and Entrepreneurship Training Program of Northwest A&F University(Program No.201910712134).

摘　　要：A new subsoiler with placoid scale microstructure bionic surface was proposed which mimicked shark skin to reduce tillage resistance and soil adhesion during subsoiling cultivation.The contour curves of placoid scale microstructure on shark skin were fitted,and two kinds of bionic subsoiler with continuous and discontinuous microstructures were designed and fabricated,respectively.The effects of different bionic surfaces on tillage resistance were investigated by finite element simulation and experiment.The results indicated that the bionic subsoiler with discontinuous microstructure reduced the horizontal and vertical force by 21.3%and 24.8%,respectively.The subsoiler with discontinuous microstructure surface can prevent the adhesion between the soil and subsoiler surface more efficiently.

关 键 词：drag reduction ANTI-ADHESION SUBSOILER bionic surface placoid scale microstructure finite element simulation 

分 类 号：S15[农业科学—土壤学]