a question about mass flow in multi-component flow
 

Hi, I am working with a multi-component flow now. My question is How can I compute the massflow for a single component of the multi-component fluid on a 2d boundary. I know in the cfx FAQ part an answer in perl has been given out, but I found it does work at all. An error likes this will be rise up: ERROR Syntax error detected in the expression assigned to 'expression'. Successfully read 25 characters:

Water Ideal Gas.massFlow@ then error detected at:

Plane 1 Details - Syntax error: locator name may not follow variable name. Please give your advise. Thanks in advance! frank