Wall Roughness Effects: A Second Law Analysis (SLA)

作者: Heinz Herwig , Tammo Wenterodt

DOI: 10.1007/978-90-481-9631-9_21

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摘要: The second law of thermodynamics can be used to detect and determine losses in a flow field. After general discussion their corresponding nondimensional loss coefficients it is discussed how this method applied effects wall roughness. Examples are given for laminar turbulent flows through pipes channels with roughnesses. For as well cases comparisons experimental data serve validation the proposed.

参考文章(3)
D. Gloss, J. Dittmer, H. Herwig, A Systematic Approach to Wall Roughness Effects in Laminar Channel Flows: Experiments and Modelling ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels. pp. 39- 46 ,(2008) , 10.1115/ICNMM2008-62147
L. Schiller, Über den Strömungswiderstand von Rohren verschiedenen Querschnitts und Rauhigkeitsgrades Zamm-zeitschrift Fur Angewandte Mathematik Und Mechanik. ,vol. 3, pp. 2- 13 ,(1923) , 10.1002/ZAMM.19230030102