On Problems with Downscaling in Internal Flows
文献类型:期刊论文
作者 | Rudolf DVORAK |
刊名 | JOURNAL OF THERMAL SCIENCE
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出版日期 | 2005 |
卷号 | 14期号:4页码:305,307 |
关键词 | Relatively Narrow Channels Secondary Flows Skin Friction Microturbines |
英文摘要 | Problems that may accompany downscaling in internal flows are discussed. Non-dimensional similarity parameters (like Re, M, etc.) depend on parameters that scale down fully (e.g., length), or that are specified by design (velocities, cascade geometry), or that are scale invariant (like thermophysical and transport properties of fluids). This fact has to be taken into acount in the similarity considerations. With decreasing Reynolds number the surface forces become of growing importance, however, if not going down directly to microflows the main problems are connected with the three-dimensional flow structure affecting the skin friction, and with the fact that some of the flow phenomena (e.g. vortical structures) cannot fully develop. |
公开日期 | 2013-03-11 |
源URL | [http://ir.etp.ac.cn/handle/311046/53248] ![]() |
专题 | 工程热物理研究所_Journal of Thermal Science |
推荐引用方式 GB/T 7714 | Rudolf DVORAK. On Problems with Downscaling in Internal Flows[J]. JOURNAL OF THERMAL SCIENCE,2005,14(4):305,307. |
APA | Rudolf DVORAK.(2005).On Problems with Downscaling in Internal Flows.JOURNAL OF THERMAL SCIENCE,14(4),305,307. |
MLA | Rudolf DVORAK."On Problems with Downscaling in Internal Flows".JOURNAL OF THERMAL SCIENCE 14.4(2005):305,307. |
入库方式: OAI收割
来源:工程热物理研究所
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