tseo

January 17, 2005 01:41 
Fluid flow will affect with different diffusivity?
Hello, I solved advectionconvection equation with Navierstokes equation for several different UDS diffusivity using FLUENT. I expected that the wall shear stress should be same even if the values of the UDS diffusivity are different, but the results are not. The advectionconvection equation with fluid flow is oneway coupling, so the diffusivity does not affect the fluid flow. In fluent I set the numnber of userdefined scalar as 1 and the flux function is mass flow rate. Did I miss something? If you know the reason physically, please let me know. Thank you in advance.
