Static pressure results all over the place
***SOLVED**** Reference value of pressure was set to the sinusoidal inlet. Moved the reference value location to somewhere far away in the domain
Hi I am modelling the following:
I have run the simulation for a number of cycles of the jet pulse (to obtain stable results) and with a large number of iterations per timestep. When I come to read the results in CFD post the velocity plot looks ok but the static pressure plot is all over the place. The surrounding 'ambient air' pressure keeps changing when it should be ~constant and at the start of the cycle the values are very negative. To be able to see the actual vortex, the contour range has to be changed for each frame to a suitable range. One note is that when running the calculation the property values are referenced to the ambient air inlet (which is constant anyway). Any ideas as to what I'm doing wrong to have such erratic static pressure plots? Can provide further details if necessary. Thank you for any help in advance! |
Update:
From looking at the results it appears that the sinusoidal inlet is at a constant static pressure throughout but the rest of the domains changing static pressure constantly. What should I use for the reference values when setting up the solver? |
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