pressure losses

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 December 11, 2002, 11:01 pressure losses #1 Olivier Macchion Guest   Posts: n/a Hello I would like to calculate the pressure losses and the crossflow intensity in a duct. Does anybody know how to do this in POST ? Thanks MvH Olivier

 December 11, 2002, 15:25 Re: pressure losses #2 cfd guy Guest   Posts: n/a To evaluate the pressure drop (global) use the calculator function in POST. Calculate the area average pressure of the inlet and subtract this value with the one found on the outlet (assuming you have only one inlet and one outlet). cfd guy

 December 12, 2002, 03:51 Re: pressure losses #3 Olivier Macchion Guest   Posts: n/a Thank you cfd guy ! Olivier

 December 12, 2002, 07:39 Re: pressure losses #4 Jan Rusås Guest   Posts: n/a I do think it should be mass average when dealing with pressure loss? Regards Jan

 December 12, 2002, 12:30 Re: pressure losses #5 Swapnil Guest   Posts: n/a Hi Olivier, Will you please describe in brief the problem statement/phenomena you are studying? I am also working on a problem which is closely related to cross flow in ducts . Let me know. Also, if there is any body else who has worked on problem similar to this please post a brief description of your problem statement Thanks, Swapnil

 December 13, 2002, 05:43 Re: pressure losses #6 Jan Rusås Guest   Posts: n/a I would like to make a small correction. The total pressure loss is a energy loss and should therefore, when calculated be wolume flow averaged, (omitting internal energy and potential energy) Intergral (p+ 1/2*rho*U^2)U dA at position 1 and 2. In case of incompressible flow mass flow averaged can be used. Regards Jan

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