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oscillatingInletACMI2D tutorial case for compressible flow |
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February 6, 2015, 05:17 |
oscillatingInletACMI2D tutorial case for compressible flow
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New Member
Jim
Join Date: Feb 2014
Location: UK
Posts: 22
Rep Power: 12 |
Hi Foamers,
Has anyone attempted to run the oscillatingInletACMI2D tutorial case using a compressible flow solver, e.g. rhoPimpleDyMFoam? I am able to match the incompressible results fairly well when looking in paraView, however I am getting very large time step continuity errors, for both local, global and cumulative error. I have tried messing around with boundary conditions, discretisation schemes, etc., with no success. Here is an excerpt from the run log: Code:
solidBodyMotionFunctions::oscillatingLinearMotion::transformation(): Time = 1.34375 transformation: ((-0 -0.440455 -0) (1 (0 0 0))) AMI: Creating addressing and weights between 40 source faces and 96 target faces AMI: Patch source sum(weights) min/max/average = 0, 1, 0.648862 AMI: Patch target sum(weights) min/max/average = 0, 1, 0.259544 diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0 rhoEqn max/min : 1.00876 1e-06 PIMPLE: iteration 1 smoothSolver: Solving for e, Initial residual = 0.000354663, Final residual = 8.46498e-07, No Iterations 2 GAMG: Solving for p, Initial residual = 0.0549391, Final residual = 8.04382e-06, No Iterations 18 GAMG: Solving for p, Initial residual = 7.69576e-06, Final residual = 7.69576e-06, No Iterations 0 diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0 time step continuity errors : sum local = 0.999997, global = 0.999997, cumulative = 3112.9 rho max/min : 1 1 GAMG: Solving for p, Initial residual = 0.0231104, Final residual = 8.37962e-06, No Iterations 16 GAMG: Solving for p, Initial residual = 8.20122e-06, Final residual = 8.20122e-06, No Iterations 0 diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0 time step continuity errors : sum local = 0.999997, global = 0.999997, cumulative = 3113.9 rho max/min : 1 1 PIMPLE: iteration 2 smoothSolver: Solving for e, Initial residual = 0.000157866, Final residual = 4.39831e-07, No Iterations 2 GAMG: Solving for p, Initial residual = 0.0215709, Final residual = 7.47359e-06, No Iterations 11 GAMG: Solving for p, Initial residual = 7.48215e-06, Final residual = 7.48215e-06, No Iterations 0 diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0 time step continuity errors : sum local = 0.999997, global = 0.999997, cumulative = 3114.9 rho max/min : 1 1 GAMG: Solving for p, Initial residual = 0.0102435, Final residual = 7.53471e-06, No Iterations 14 GAMG: Solving for p, Initial residual = 7.5762e-06, Final residual = 8.22582e-07, No Iterations 5 diagonal: Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0 time step continuity errors : sum local = 0.999997, global = 0.999997, cumulative = 3115.9 rho max/min : 1 1 smoothSolver: Solving for epsilon, Initial residual = 0.00113894, Final residual = 1.12523e-07, No Iterations 3 smoothSolver: Solving for k, Initial residual = 0.00123162, Final residual = 3.2464e-07, No Iterations 3 PIMPLE: converged in 2 iterations ExecutionTime = 198.06 s ClockTime = 198 s Courant Number mean: 0.0944925 max: 0.495629 deltaT = 0.00208333 Time = 1.34583 |
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acmi, compressible solver, time step continuity |
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