equivalent diameter vs hydraulic diameter
i stuck up with one problem. i am working on flow over 2D triangular cylindrical obstacle in a channel. i am planning to compare my results ie drag coefficient, wake length etc., with square obstacle. my question is on what basis i have to compare these two either by equivalent diameter or hydraulic diameter?
also what is the difference between these two diameters?
please reply me...
u'l find d details in this link
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