| sushant |
April 9, 2009 02:52 |
Supersonic Flow over a Cavity (coodles): Maximum Iterations Exceeded
Hi,
I'm trying to solve a supersonic flow over a cavity using coodles, based on the pitzDaily case. My geometry looks like:
Code:
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in -> | | -> out
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--------------- ------------------
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| |
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Boundary Patches: inlet, outlet, upperWall, lowerWall (includes cavity)
Boundary Conditions:
inlet outlet wall
U Mach 3 (1050 m/s) zeroGradient no slip
P 1.4e5 waveTransmissive zeroGradient
T 288K zeroGradient 288K
I inevitably get the Maximum Number of Iterations Exceeded error if inlet velocity > Mach 1. I'm using adaptive timestep to keep Co < 1 but the solver still dies when the flow front just reaches the cavity. My thermophysicalProperties has:
Code:
thermoType hThermo<pureMixture<constTransport<specieThermo<hConstThermo<perfectGas>>>>>;
mixture air 1 28.9 1000 0 1.8e-05 0.7;
Initial conditions: U=0, P=1e5, T=288.
Ideas are much appreciated!
Thanks,
Sushant |
