I have a model of recuperator. it is an assemlby in which
some parts are there. I want to define porosity to those
components. I go thorugh engineering database and i define one new
item over there. I found many options over there like in resistance
calculation formula if i want to go with dependency in velocity:
what is A and B stands for? wht to enter in length and area option
by default its value is 0.1m and 0.01m2 is given. any one can guide
me how to define porosity to particular component and which option
is to use for engineering database?
