Transcription of Chapter 8: Dimensional Analysis and Similitude
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Chapter 8: Dimensional Analysis and Similitude
57:020 Mechanics of Fluids and Transport Processes Chapter 7 Professor Fred Stern Fall 2013 1 Chapter 7 Dimensional Analysis and modeling The Need for Dimensional Analysis Dimensional Analysis is a process of formulating fluid mechanics problems in terms of nondimensional variables and parameters. 1. Reduction in Variables: F = functional form If F(A1, A2, .., An) = 0, Ai = Dimensional variables Then f( 1, 2, .. r < n) = 0 j = nondimensional parameters Thereby reduces number of = j (Ai) experiments and/or simulations , j consists of required to determine f vs.
Chapter 7 Dimensional Analysis and Modeling The Need for Dimensional Analysis Dimensional analysis is a process of formulating fluid mechanics problems in terms of nondimensional variables and parameters. 1. Reduction in Variables: F = functional form If F(A 1, A 2, …, A n) = 0, A i = dimensional variables Then f( 1, 2, … r < n
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