Power Law or Logarithmic Law - A Data Analysis for Zero Pressure Gradient Turbulent Boundary Layers with Low Reδ2
文献类型:期刊论文
作者 | Matthias Buschmann |
刊名 | JOURNAL OF THERMAL SCIENCE
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出版日期 | 2000 |
卷号 | 9期号:1页码:23,29 |
关键词 | Power Law Turbulent Boundary Layer Scaling Analysis Fluid Mechanics |
英文摘要 | The paper presents an analysis of two-dimensional zero pressure gradient (ZPG) turbulent boundary layers (TBL) with regard to the application of power laws. Only TBL with low Reynolds number 300 < Reδ2 < 6200 are taken into account. It is found that a certain region of the mean velocity profile can be described with a power law of the form u+ = CPok * y+a This power law region is not a priori identical with the overlap region. An algorithm for the determination of the wall skin friction using the power law is proposed. The method was applied with good result to ZPG TBL and to adverse pressure gradient (APG) TBL. To bridge the gap between the wall and the power law region an approach for the turbulent viscosity is suggested. |
公开日期 | 2013-03-12 |
源URL | [http://ir.etp.ac.cn/handle/311046/53764] ![]() |
专题 | 工程热物理研究所_Journal of Thermal Science |
推荐引用方式 GB/T 7714 | Matthias Buschmann. Power Law or Logarithmic Law - A Data Analysis for Zero Pressure Gradient Turbulent Boundary Layers with Low Reδ2[J]. JOURNAL OF THERMAL SCIENCE,2000,9(1):23,29. |
APA | Matthias Buschmann.(2000).Power Law or Logarithmic Law - A Data Analysis for Zero Pressure Gradient Turbulent Boundary Layers with Low Reδ2.JOURNAL OF THERMAL SCIENCE,9(1),23,29. |
MLA | Matthias Buschmann."Power Law or Logarithmic Law - A Data Analysis for Zero Pressure Gradient Turbulent Boundary Layers with Low Reδ2".JOURNAL OF THERMAL SCIENCE 9.1(2000):23,29. |
入库方式: OAI收割
来源:工程热物理研究所
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