Ansys, FSI, piezoelectric micro-pump example
I am using Ansys 12.1 and trying to repeat the Ansys example on MFX (coupled-field analysis guide 4.5, piezoelectric actuated micro-pump). I have followed the example exactly, but kept on having problem with the MFX launcher in ANSYS APDL.After setting up the directory, input and definition files for ANSYS Run and CFX Run on the launcher, I have an error message of "The required cfx5solve.exe file was not found in the v121\CFX\bin subdirectory of the directory enter in the 'CFX installation directory' filed on the 'MFX-ANSYS/CFX Setup' tab, as is required".It looks to me that the two parts of the program seem not talking to each other, but the starnge thing is both Ansys and CFX run perfectly individually. Does anyone have similar problem before? Or is there any batch code that can avoid the launcher and get the MFX solution phase going?

Flange ClassesThere are four common pressure "classes" within the ANSI/ASME standards listed above. Class 125 and Class 250 are "cast iron" flanges and flanged fittings while Class 150 and Class 300 are ductile iron, steel or stainless steel. Hence, ANSI/ASME B16.1 Class 125 flanges are made from cast iron, ANSI/ASME B16.5 Class 150 can be made from steel or stainless and ANSI/ASME B16.42 Class 150 is made from ductile iron.However, the bolting pattern is the same for both Class 125 and 150 so, regardless of material, they will bolt together. This is also the case for Class 250 and 300. Cast iron flanges are usually supplied "flat faced" while ductile iron and steel are usually "raised face." When bolting a cast iron Multi-stage pump flange to a steel or ductile iron flange, the "raised face" of the mating flange should be removed to avoid breaking the cast iron flange when tightening the bolts.Pressure and TemperatureThe ANSI/ASME standards also provide pressure ratings for various "classes" of flanges and flanged fittings.

2011-08-25

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