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Old   April 17, 2007, 08:49
Default FLoating pint error
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Luke
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I'm running a diffuser case with inlet mass flow and outlet pressure conditions and for some reason the solver exits with the error "Floating point exception : Overflow" I've tried running with a real low physical timescale but with no success. What could possibly be the problem. I thought it could be a High Mach number problem, but the solver gives no "High Mach number" warning as it normally does. Kindly help me out Thanks in advance Luke
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Old   April 17, 2007, 11:31
Default Re: FLoating pint error
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Joe
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More info needed.
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Old   April 17, 2007, 23:30
Default Re: FLoating pint error
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Luke
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This is the error that i get c_fpx_handler: Floating point exception: Overflow

The problem is a diffuser, with inlet mass flow BC and outlet static pressure BC. The analysis goes on with no problems regards to divergence or reverse flow, but at a certain point it exits with this error, with no warning whatsoever.

What could be the problem?
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Old   April 22, 2007, 08:46
Default Re: FLoating pint error
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CFX 11.0 64bit gives that. CFX 10.0 64bit does not. 11.0 possibly came out too early.
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Old   April 23, 2007, 07:33
Default Re: FLoating pint error
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Luke
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I am using CFX 10.0 64 bit.....
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Old   April 24, 2007, 15:55
Default Re: FLoating pint error
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Refining mesh would be my way.
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Old   April 25, 2007, 05:00
Default Re: FLoating pint error
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Prachi
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If refining the mesh doesnt help. I would switch the outlet boundary condition to an opening and run for couple iterations before switching it back to outlet.
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