作者: Heinz Herwig , Tammo Wenterodt
DOI: 10.1007/978-90-481-9631-9_21
关键词:
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.