AnsweredAssumed Answered

Gravity in Flow Simulation not performing?

Question asked by 1-SCA0VU on Jul 14, 2010
Latest reply on Aug 25, 2013 by Jared Conway



This is my first post, so please forgive any forum  gaffs I make.


Gravity doesn't seam to have any effect on my flow  simulations. I have run a simple test in exactly the same way, having  gravity on first and and off second, but the results are identical. And  yes, gravity is acting in the right direction.


As I am  working on a gravity powered device, it's crucial that this force be  included.


I have been using this for only 4 months, but I have  managed to use it successfully to design a carburetor which, when  prototyped in  reality was very close to the flow simulation results. However, I had to  fake gravity by working out the additional pressure myself, and adding  it to the atmospheric pressure cap on top. I did this on advice from  another flow simulation user, but I still don't understand it and I  can't fake it this time.


I've attached a screen shot of the set up. I hope someone can help.


reservoir test cross section.jpg

If i've not explained something or its a bit unclear, please do ask.