【摘要】：為了優(yōu)化漂浮取水泵葉片幾何參數(shù),基于Pro/E建立了不同參數(shù)葉片內部流場模型,利用FLUENT進行數(shù)值模擬,探討了不同葉片數(shù)、包角度數(shù)、葉片厚度對漂浮取水泵的外特性、內部流場、葉片受力和速度分布的影響。結果表明:葉片數(shù)越大,葉片表面相同位置液流速度越大;葉片數(shù)對流量功率曲線影響較大,對效率曲線影響不顯著;包角度數(shù)應適中,過大會導致葉片表面出現(xiàn)局部低壓,過小會導致葉片出口壓力積聚;隨著包角的增大,效率曲線駝峰特性越顯著,高效區(qū)向流量減小方向移動;葉片厚度對外特性曲線影響不明顯。研究結果可為優(yōu)化葉片幾何參數(shù)、改善內部流場分布以及提高泵的效率提供一定參考。
[Abstract]:In order to optimize the geometric parameters of the blade of the floating pump, the flow field model of the blade with different parameters was established based on Pror / E, and the external characteristics of different blade number, the number of the package angle and the thickness of the blade on the floating pump were studied by using fluent to carry out the numerical simulation. The influence of internal flow field, blade force and velocity distribution. The results show that the larger the blade number, the greater the liquid flow velocity at the same position on the blade surface, the greater the influence of the blade number on the flow power curve, the less significant the influence on the efficiency curve, and the more moderate the angle number is, the lower the local low pressure appears on the blade surface. Too small will lead to the blade outlet pressure accumulation; with the increase of the envelope angle the hump characteristics of the efficiency curve is more significant and the high efficiency zone moves to the direction of the decrease of flow rate; the external characteristic curve of blade thickness has no obvious effect. The results can be used to optimize the geometric parameters of the blade, improve the internal flow field distribution and improve the efficiency of the pump.
【作者單位】： 后勤工程學院國家救災應急裝備工程技術研究中心;后勤工程學院軍事供油工程系;
【基金】：國家科技支撐計劃(2014BAK05B08) 國家工信部物聯(lián)網專項(ZX201426903) 重慶市科技攻關計劃項目(cstc2012gg-sfgc00002)
【分類號】：TH38

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