How can I do with those messages?

August 17, 2005, 08:33

Hi everyone,

I am using a LES model to do one transient simulation for one square pipe, but in the *.info file I found there are the following messages:

MAXIMUM COURANT NUMBER = 2.092E+00 AT CELL 54851 MEAN COURANT NUMBER = 2.594E-01

*** WARNING #038 *** UNNORMALISED RESIDUAL CANNOT BE REDUCED TO 1.000000E-10 IN EQ: PCOR

ROUND-OFF ERROR RESCUE NOT ATTEMPTED; SOLUTION RETURNED WITHOUT UPDATE

Any ideas to avoid these warnings and problems: the solution returned without updata?

Thank you very much for your help!

Lee

August 21, 2005, 23:20

try to reduce the time step size

August 17, 2005, 08:33	How can I do with those messages?	#1
Lee Guest Posts: n/a	Hi everyone, I am using a LES model to do one transient simulation for one square pipe, but in the .info file I found there are the following messages: MAXIMUM COURANT NUMBER = 2.092E+00 AT CELL 54851 MEAN COURANT NUMBER = 2.594E-01 WARNING #038 * UNNORMALISED RESIDUAL CANNOT BE REDUCED TO 1.000000E-10 IN EQ: PCOR ROUND-OFF ERROR RESCUE NOT ATTEMPTED; SOLUTION RETURNED WITHOUT UPDATE Any ideas to avoid these warnings and problems: the solution returned without updata? Thank you very much for your help! Lee

August 21, 2005, 23:20	Re: How can I do with those messages?	#2
som Guest Posts: n/a	try to reduce the time step size

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