Thanks, Rob for your answer Thanks, I am getting the logical answer when I use the Pressure based solver for the air, I still got some higher Mach number in the pipe inlet, any suggestion, it may be due to the meshing. But the manual clearly differentiates the use of a pressure-based solver for the incompressible fluid, the thing, here is the thing that during the project extension, I would like to use the PR other gas EOS in the future, I am not sure if I can still use the Pressure Based solver. Any comment on that.
When I tried to use the density of the air to be computed using the ideal gas, using the pressure-based solver.
Solver Error : "
Error: Error occurred during handling message in WorkBench: An error occurred in FLUENT during the execution of an internal command. An error occurred in FLUENT during the execution of an internal command
Error Object: #fiter continuity x-velocity y-velocity z-velocity energy time/iter
1 1.0000e+00 3.1098e-02 2.7651e-02 2.8384e-02 5.7729e-02 0:00:16 249
2 1.0000e+00 3.0083e-01 4.4546e-02 4.1878e-02 5.0551e-03 0:00:12 248
# Divergence detected in AMG for temperature: protective actions enabled!
# Divergence detected in AMG for temperature, temporarily solve with BCGSTAB!
3 1.0000e+00 1.6083e-01 3.3575e-02 3.2518e-02 1.1364e-02 0:00:10 247"
Yes, I think there will be Jetting from the inlet pipe the passage is very small. I think the jetting velocity will be increased due to the large pressure gradient up to 1500 psi. There are obstacles in the big cross-sectional area but I am initially doing the flow analysis without it in order to understand to simplify the problem and air as sample fluid.