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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › mixing of gases, no combustion › Reply To: mixing of gases, no combustion

August 28, 2024 at 8:18 pm
Zeska ZESKA
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Hi Rob
Thank you very much for your reply!
I changed the solver to pressure based and the method to Coupled. The rest is completly the same. After initialization I plotted the pressure and density contours and they looked good. The pressure and density 
at the boundaries show the values ​​that I prescribed. 
I run the simulation once again for 10000 time steps, but it stoped after around 900 time steps and it said that the solution converged. Do you think that's ok/normal?
Moreover, when I plot the final pressure contour, the values at the boundaries are not the one that I had at the begging, but values that are slightly lower, like 1 or 2 bar lower. What causes that?
 
 

 

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