漂浮取水泵叶片几何参数优化数值模拟
发布时间：2018-07-17 08:19
【摘要】：为了优化漂浮取水泵叶片几何参数,基于Pro/E建立了不同参数叶片内部流场模型,利用FLUENT进行数值模拟,探讨了不同叶片数、包角度数、叶片厚度对漂浮取水泵的外特性、内部流场、叶片受力和速度分布的影响。结果表明:叶片数越大,叶片表面相同位置液流速度越大;叶片数对流量功率曲线影响较大,对效率曲线影响不显著;包角度数应适中,过大会导致叶片表面出现局部低压,过小会导致叶片出口压力积聚;随着包角的增大,效率曲线驼峰特性越显著,高效区向流量减小方向移动;叶片厚度对外特性曲线影响不明显。研究结果可为优化叶片几何参数、改善内部流场分布以及提高泵的效率提供一定参考。
[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.
【作者单位】： 后勤工程学院国家救灾应急装备工程技术研究中心;后勤工程学院军事供油工程系;
【基金】：国家科技支撑计划(2014BAK05B08) 国家工信部物联网专项(ZX201426903) 重庆市科技攻关计划项目(cstc2012gg-sfgc00002)
【分类号】：TH38
[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.
【作者单位】： 后勤工程学院国家救灾应急装备工程技术研究中心;后勤工程学院军事供油工程系;
【基金】：国家科技支撑计划(2014BAK05B08) 国家工信部物联网专项(ZX201426903) 重庆市科技攻关计划项目(cstc2012gg-sfgc00002)
【分类号】：TH38
【相似文献】
相关期刊论文 前10条
1 昌泽舟,步天o，
本文编号：2129771
本文链接：https://www.wllwen.com/kejilunwen/jixiegongcheng/2129771.html
