• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Fourteenth Australasian Fluid Mechanics Conference Vol.II Dec 9-14, 2001 Adelaide, Australia >Drag Coefficient for Arrays of Cylinders in Flows of Power-Law Fluids
【24h】

Drag Coefficient for Arrays of Cylinders in Flows of Power-Law Fluids

机译：幂律流体流动中的汽缸阵列的阻力系数

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

Numerical simulations are presented of flows of power-law fluids through periodic arrays of aligned cylinders, both creeping flows and flows with finite inertia. Results are presented for the drag coefficient of the cylinders and are compared against asymptotically valid analytical results. Square and hexagonal arrays are considered, both for flow in the plane perpendicular to the alignment vector of the cylinders (along the axes of the array as well as off-axis flows), and for flow along the cylinders. It is shown that the observed strong dependence of the drag coefficient on the power-law index (through which the stress tensor is related to the rate-of-strain tensor) for creeping flows can be described at all solid area fractions by scaling the drag on a cylinder with appropriate velocity and length scales. For flows with finite inertia a similar scaling is found.
机译：数值模拟给出了幂律流体通过对齐圆柱体的周期性阵列的流动，蠕变流动和有限惯性流动的数值模拟。给出了气缸阻力系数的结果，并与渐近有效的分析结果进行了比较。考虑正方形和六边形阵列，既用于垂直于圆柱体的对齐矢量的平面中的流动（沿阵列的轴以及偏轴流），也用于沿圆柱体的流动。结果表明，通过按比例缩放阻力，可以在所有固体区域分数下描述所观察到的阻力系数对幂律指数（应力张量与应变率张量相关）的强烈依赖性。在具有适当速度和长度比例的圆柱体上。对于具有有限惯性的流，可以找到类似的比例。

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