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基于仿生耦合功能表面的離心水泵增效機(jī)制研究
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國家自然科學(xué)基金青年科學(xué)基金資助項(xiàng)目（51105168)和長春市重大科技攻關(guān)專項(xiàng)資助項(xiàng)目(13KG33)


Enhancement Mechanism Investigation of Centrifugal Pump Based on Bionic Coupling Functional Surface
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    摘要:

    海豚特殊的皮膚結(jié)構(gòu)具有減阻功能,，模仿其結(jié)構(gòu)，設(shè)計了一種具有實(shí)際工程應(yīng)用價值的仿生耦合功能表面,，將其應(yīng)用到離心式水泵的葉輪表面,，進(jìn)行水泵增效試驗(yàn)研究。研究結(jié)果表明:這種仿生耦合功能表面可提高離心式水泵效率3%及以上,；仿生耦合功能表面面層材料的硬度對水泵的效率影響顯著,。分析認(rèn)為其增效機(jī)制主要在于:表面面層材料與基底材料仿生結(jié)構(gòu)的耦合變形降低了葉輪流道壁面的摩擦力及吸收流體介質(zhì)對葉輪進(jìn)、出口湍動能的方式實(shí)現(xiàn)對流體介質(zhì)的控制,，從而降低離心泵水力損失,，實(shí)現(xiàn)增效。

    Abstract:

    Dolphin’s special skin structure has characteristics of drag reduction, by mimicking this structure, a kind of bionic coupling functional surface which has practical engineering application value was designed. It was applied on the surface of a centrifugal pump impeller to investigate the efficiency enhancement of the pump through contrast experimental method. The experimental results showed that the pump efficiency was improved by 3% by using this kind of bionic coupling functional surface. The hardness of surface material had influence on the pump efficiency. The mechanism of efficiency enhancement of bionic coupling functional surface was the coupling deformation between elastic surface material and bionic structure on the basal material, which can decrease the drag of impeller surface, absorb some energy and effectively reduce the turbulent kinetic energy of the inlet and outlet of impeller, thus, the hydraulic loss would be decreased.

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田麗梅,梅浩然,李新紅,王銀慈,楊樂,邵鵬.基于仿生耦合功能表面的離心水泵增效機(jī)制研究[J].農(nóng)業(yè)機(jī)械學(xué)報,2015,46(4):65-69,119. Tian Limei, Mei Haoran, Li Xinhong, Wang Yinci, Yang Le, Shao Peng. Enhancement Mechanism Investigation of Centrifugal Pump Based on Bionic Coupling Functional Surface[J]. Transactions of the Chinese Society for Agricultural Machinery,2015,46(4):65-69,119.

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  • 收稿日期:2014-06-25
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  • 在線發(fā)布日期: 2015-04-10
  • 出版日期: 2015-04-10
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