Wenlong
Ansys Employee

Hi harsf,


Fluid80 is a legacy element that has stopped being documented in the current version of Ansys. Although this legacy element is available for use in your analysis, Ansys, Inc. recommends using a current-technology element such as FLUID29, FLUID30, FLUID220, or FLUID221.


So I would recommend you try the newer element types and see if the problem continues to exist.


Regards,


Wenlong