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September 24, 2013, 22:20
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Problem in Spray and Combustion simulation
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#1 |
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New Member
John Wang
Join Date: May 2013
Posts: 5
Rep Power: 12  |
Hi,
I am currently performing some simulations of GDI combustion. But I met problems when apply both spray model (Reitz and MIP2) and ECFM-3Z combustion model. The simulations were stopped because of either negative density or the divergence. Trimming method is adopted to get the mesh. I would like to know the reason for the failure of the simulations. Could anyone help me about this? Thanks. Best regards, John |
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October 29, 2013, 05:07
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#2 | |
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Member
zheng jianjun
Join Date: Jan 2010
Posts: 46
Rep Power: 16 |
check the Courant number,if it is too large, plz decrease the timestep and try again.
Quote:
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November 8, 2013, 10:11
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#3 | |
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New Member
John Wang
Join Date: May 2013
Posts: 5
Rep Power: 12 |
It seems reducing the timstep could not solve this problems.
Thank you all the same. Quote:
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| Tags |
| spray combustion |
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