• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>The Fourth International Conference on Pumps and Fans (4th ICPF) Aug 26-29, 2002 Beijing, China >SUBMERGED VORTICES IN PUMP SUMP MODEL SIMULATIONS
【24h】

SUBMERGED VORTICES IN PUMP SUMP MODEL SIMULATIONS

机译：泵模型模拟中的淹没涡流

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

For the simulations of the occurrence of submerged vortex in pump sump model tests, the present studies showed that the flow should be higher than that corresponding to Froude number simulation. Thus, a "k-Froude" velocity simulation is proposed here. The upper limit of the model simulation for the occurrence of the submerged vortices was observed to be when the ratio of viscous forces to surface tension forces is the same for the prototype and the geometrically similar model. If the swirl angles of the flow in the inlet ducts measured at Froude scaling velocity is less than 5 degrees, the occurrence of submerged vortices generally does not exist for model flow tested below the critical model test flow velocity defined by the similarity of the ratio of Weber Number and the Reynolds number of the flow filed in model and prototype.
机译：对于在泵贮槽模型测试中淹没涡的发生的模拟，目前的研究表明流量应高于对应于弗洛德数模拟的流量。因此，这里提出了“ k-Froude”速度模拟。观察到的模型模拟的上限是当原型和几何相似的模型的粘性力与表面张力之比相同时。如果在Froude标度速度下测得的进气道中气流的旋流角小于5度，则对于低于由比率的相似度定义的临界模型测试流速所测试的模型流量，通常不存在浸没涡流。模型和原型中归档的流的韦伯数和雷诺数。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号