Bob uses a computational fluid dynamics code to model steady flow of an incompre

Question

Bob uses a computational fluid dynamics code to model steady flow of an incompressible fluid through a two-dimensional sudden contraction as sketched in Fig.P9-122. Channel height changes from H1 = 12.0 cm to H2 = 4.6 cm. Uniform velocity V1 rightarrow = 18.5 i rightarrow m/s is to be specified on the left boundary of the computational domain. The CFD code uses a numerical scheme in which the stream function must be specified along all boundaries of the computational domain. As shown in Fig. P9-122, is specified as zero along the entire bottom wall of the channel. (a) What value of should Bob specify on the top wall of the channel? (b) How should Bob specify on the left side of the computational domain? (c) Discuss how Bob might specify on the right side of the computational domain. FIGURE P9-122

Explanation / Answer

a) 3.2E^-5 b) c) I will get you the explanation later

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