• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国政府科技报告 >Studies of Von Karman's Similarity Theory and Its Extension to Compressible Flows. A Critical Examination of Similarity Theory For Incompressible Flows.
【24h】

Studies of Von Karman's Similarity Theory and Its Extension to Compressible Flows. A Critical Examination of Similarity Theory For Incompressible Flows.

机译：冯卡曼相似理论及其对可压缩流动的推广研究。对不可压缩流动相似理论的批判性考察。

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The classical theories for turbulent shear flow are the momentum transfer theory of Prandtl, the vorticity transfer theory of Taylor, and the similarity theory of Von Karman. The two transfer theories both involve a mixture length, which must be given by an additional assumption. On the other hand, the similarity theory is a more determinate scheme, because it makes a more definite hypothesis about the nature of the turbulent fluctuations. Goldstein, however, introduced an alternative form of the similarity theory. A great amount of work has been done to evaluate the relative merits of these three theories. Further investigation into the nature of turbulent motion is, however, done largely in connection with the simpler case of isotropic turbulence. In this field, much recent progress has been made, particularly following the concept of Kolmogoroff. The concept of similarity also plays a dominant role. Since Kolmogoroff's theory is also applicable to shear flow, it is natural that one should reexamine the similarity theory of Von Karman by using modern concepts. This is the main purpose of the present investigation. It is found that the original form of the theory is supported by modern concepts.

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