本文選題：泵 + 仿生�。� 參考：《農業(yè)工程學報》2016年07期

【摘要】：為了提供一種可利用仿生功能表面提高泵類產品效率的方法,該文分別以鯊魚皮膚及海豚皮膚表面結構為模仿原型,設計了2種仿生功能表面,模仿鯊魚皮膚結構的功能表面為模型1,仿海豚皮膚結構的功能表面為模型2,并以吉林市奧吉通泵業(yè)有限公司生產的200QJ50-26離心式水泵為載體,進行了試驗研究。研究結果表明,模型1可提高水泵效率2%~3%,模型2可提高水泵效率5%,且模型2在全流段范圍內增效效果顯著。利用氫氣泡流動顯示試驗,從流場尾跡再附點及渦距2個方面說明了上述2種模型對流體介質的控制機制。試驗結果表明,模型2相比模型1,其尾跡再附點距離降低5 mm,而尾跡渦距距離卻增加3 mm。說明模型2的壓差阻力得到降低,此外,模型2通過降低渦生成密度及速度的方式降低能量的耗散,其減阻效果更明顯。該研究為仿生功能表面在以流體為工作介質的流體機械及在流體介質中運行的交通工具的全面應用提供了參考。
[Abstract]:In order to provide a method of using bionic function to improve the efficiency of pump products, this paper designs 2 kinds of bionic functional surfaces with shark skin and dolphin skin surface structure. The functional surface of shark skin structure is model 1. The functional surface of porpoise skin structure is model 2 and Jilin AUJI. The 200QJ50-26 centrifugal pump produced by the pump industry Co., Ltd. has been tested. The results show that the model 1 can improve the efficiency of the pump 2%~3%, and the model 2 can increase the efficiency of the pump by 5%, and the model 2 has a remarkable effect in the full flow section. By the hydrogen bubble flow display test, the reattachment point and the vortex distance from the wake of the flow field are 2. The control mechanism of the 2 models for the fluid medium is explained. The experimental results show that the model 2 is compared with the model 1, and the distance of the wake reattachment point is reduced by 5 mm, while the wake distance distance is increased by 3 mm., and the pressure difference resistance of the model 2 is reduced. Furthermore, model 2 reduces the energy dissipation by reducing the eddy formation density and velocity, and its drag reduction is reduced. The effect is more obvious. The study provides a reference for the comprehensive application of biomimetic functional surfaces in fluid machinery in fluid and in a fluid medium operating in a fluid medium.
【作者單位】： 吉林大學工程仿生教育部重點實驗室;吉林琿春礦業(yè)集團;青島四方車輛研究所有限公司;
【基金】：國家自然科學基金面上項目資助項目(51475203) 吉林省科技創(chuàng)新與科技成果轉化項目(20140307030GX) 長春市重大科技攻關專項資助項目(13KG33)
【分類號】：Q811;TH311

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