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how can I speed up unsteady simulation

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Old   November 4, 2009, 10:59
Question how can I speed up unsteady simulation
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Avinash
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Dear all,
My unsteady flow simulation taking around 2 months to converged the solution. How can I reduced CPU time for unsteady problem?
Thanks.
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Old   November 4, 2009, 14:05
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Ivan
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how big is the grid?

just my two cents, try
* use smaller grid solution to initialize the big grid. (search "interpolation file" in manual)
* use biger time steps to develop the flow for a while, then switch to smaller time step.
* use parallel computation.
* use implicit solver
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Old   November 6, 2009, 02:33
Smile thanks ivanbuz.
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Avinash
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thanks ivanbuz.
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convergence, laminar, unsteady

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