thanks for your reply.
I know how to size the tank, what I am not sure about is how to calculate the pressure loss inside the tank when you have baffle inside.
I really appreciate your help.
This detention tank is simply a tank which is going to keep the water and the injected chemical for 30 sec. .
the water is feed water for ultra filtration skids.
Although the length of the tank is enough, I have to consider 3 or more baffle for better mixing.
My question is how can I calculate...