Sketch a coarse structured multiblock grid with four sided elementary blocks and four-sided cells for the computational

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Sketch a coarse structured multiblock grid with four sided elementary blocks and four-sided cells for the computational domain of Prob. 15–22.


Data from Problem 15-22

A new heat exchanger is being designed with the goal of mixing the fluid downstream of each stage as thoroughly as possible. Anita comes up with a design whose cross section for one stage is sketched in Fig. P15–22. The geometry extends periodically up and down beyond the region shown here. She uses several dozen rectangular tubes inclined at a high angle of attack to ensure that the flow separates and mixes in the wakes. The performance of this geometry is to be tested using two-dimensional time-averaged CFD simulations with a turbulence model, and the results will be compared to those of competing geometries. Sketch the simplest possible computational domain that can be used to simulate this flow. Label and indicate all boundary conditions on your diagram. Discuss.


FIGURE P15–22

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