Erosion-Resistant Surfaces Inspired by Tamarisk  

作　　者：Zhiwu Han Wei Yin Junqiu Zhang Jialian Jiang Shichao Niu Luquan Ren 

机构地区：[1]Key Laboratory of Bionic Engineering (Ministry of Education, China), Jilin University, Changchun 130022, P. R. China

出　　处：《Journal of Bionic Engineering》2013年第4期479-487,共9页仿生工程学报（英文版）

基　　金：This work was supported by the Natural Science Foundation of China （Nos. 51175220, 51205161, 51290292）, the Specialized Research Fund for the Doctoral Program of Higher Education （Nos. 20100061110023, 20120061120051）, the China Post- doctoral Science Foundation on the 51 th Grant Program （2012M511345）, the Projects of Cooperation and Inno- vation to National Potential Oil and Gas for Production and Research （No. OSR-04-04）.

摘　　要：Tamarisk, a plant that thrives in arid and semi-arid regions, has adapted to blustery conditions by evolving extremely ef- fective and robust anti-erosion surface patterns. However, the details of these unique properties and their structural basis are still unexplored. In this paper, we demonstrate that the tamarisk surface only suffers minor scratches under wind-sand mixture erosion. The results show that the anti-erosion property of bionic sample, inspired by tamarisk surface with different surface morphologies, can be attributed to the flow rotating in the grooves that reduces the particle impact speed. Furthermore, the simulation and experiment on the erosion wear behavior of the bionic samples and bionic centrifugal fan blades show that the bionic surface with V-type groove exhibits the best erosion resistance. The bionic surface on centrifugal fan blades with opti- mum parameters can effectively improve anti-erosion property by 28.97%. This paper show more opportunities for bionic application in improving the anti-erosion performance of moving parts that work under dirt and sand particle environment, such as helicopter rotor blades, airplane propellers, rocket motor nozzles, and pipes that regularly wear out from erosion.Tamarisk, a plant that thrives in arid and semi-arid regions, has adapted to blustery conditions by evolving extremely ef- fective and robust anti-erosion surface patterns. However, the details of these unique properties and their structural basis are still unexplored. In this paper, we demonstrate that the tamarisk surface only suffers minor scratches under wind-sand mixture erosion. The results show that the anti-erosion property of bionic sample, inspired by tamarisk surface with different surface morphologies, can be attributed to the flow rotating in the grooves that reduces the particle impact speed. Furthermore, the simulation and experiment on the erosion wear behavior of the bionic samples and bionic centrifugal fan blades show that the bionic surface with V-type groove exhibits the best erosion resistance. The bionic surface on centrifugal fan blades with opti- mum parameters can effectively improve anti-erosion property by 28.97%. This paper show more opportunities for bionic application in improving the anti-erosion performance of moving parts that work under dirt and sand particle environment, such as helicopter rotor blades, airplane propellers, rocket motor nozzles, and pipes that regularly wear out from erosion.

关 键 词：TAMARISK ANTI-EROSION numerical simulation bionic centrifugal fan blades 

分 类 号：TQ175.71[化学工程—硅酸盐工业] U418.6[交通运输工程—道路与铁道工程]