H20 flow operating pressure
 

Hi, I've been modeling 2D incompressible air flow past bluff bodies in a shaft using a velocity inlet and an outflow bc's. I would like to do the same with water but I'm not sure how to set the operating pressure for this case. It can't be 101325 anymore. Thanks.

Re: H20 flow operating pressure
 

For incompressible fluid simulations, the operating pressure doesn't matter

Re: H20 flow operating pressure
 

Why then does my reference pressure location seem to matter? When I was running my cases in air, I initially left the ref. press. location at the default (0,0), which is inside of my plate, and got Cp values that were around 20 which is way too high. I then moved the ref. press. location to the velocity inlet, changing nothing else, and got a Cp of 1, the correct value for this stagnation region. I'm a little confused. Thanks for your reply.