Hi to everyone,

How can I evaluate "Expressions" with more that one variables, which I have already set in Pre- and the Res. file is also created!?

any comments would be highly appreciated...

Regards, Houman

I get this error message:

ERROR #001100279 has occurred in subroutine ErrAction. Message:CEL_VALUE requested the evaluation of a single valued CEL expression. However, the expression specified for "Monitor Point 1" is not single valued. One or more sub-expressions yield field values band must be corrected to yield single values.

If you use an expression for a Monitor Point, it has to evaluated to a single number, not a field variable. You can use the callback functions (areaAve, volumeInt etc) to get single numbers for field variables on a specified locator.

Hi Stumpy,

thanks for your reply, the fact is the my expression (ds=26*dR*(dR^2*g * Water at RTP.density /SuTen)^-0.5*(g *dR ^3/KV^2 )^-0.12*(uG /sqrt(g *dR))^-0.12) calculates the bubble diameter (of the gas in a bubble column with 2 phases) so I just wanted to see the result of ds (bubble diameter) in the output file of the CFX. could you please instruct me in this regard.

thanks in advance, Houman

To avoid the error you got, remove the monitor point.

If you created this expression in CFX-Pre, then it will appear in CFX-Post also. You can create a new variables in CFX-Post (on the Variables tab) that is equal to this expression.

Thanks for the tip... it really helped a lot...

best regards, houman