Car Radiator Modeling
Hi everyone,
I am currently working on the bodywork of a car where a radiator fits inside. I try to model how flow is affected by this radiator (roughly), but I am not interested in how the flow inside the radiator is affected. From different point of view, I think that using a porous fluid inside the radiator is the simplest choice. I see that CFX can use different model of loss, the directional one is the best for me, but I dont know if I should use permeability and loss coefficients, or linear and quadratic coefficients. More, I am not sure about the way to calculate them. I have some experimental dat of my radiator with inlet and outlet pressure and velocity. (high speed and pressure in entry, low speed and pressure in exit, mostly due to heat exchange.) Is it possible to find such coefficients that allow me to work in isothermal conditions? I have done a small calcul with the formula used in the tutorial on the catalytic converter. But I have found a value of 33kg.m4 which is very far away from the exemple in the tutorial. Does anyone has some lights on this matter? Thank you in advance! 
Re: Car Radiator Modeling
so no one has an idea?

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