Hi, I suppose this would be fine, because the solver only uses the value of Kinvis. In some examples we also define Re as a parameter, but this is just as a convenient way of calculating Kinvis. Also, note that the incompressible solver assumes rho=1, since this does not affect the computations. If you need to consider a different density, this can be achieved by scaling the pressure and forces by rho in a post-processing stage (in case you want your results in dimensional form). Cheers, Douglas Em qui, 13 de dez de 2018 às 12:11, Moto Light <redamansyhh@gmail.com> escreveu:

Hi All, I need to use two different Reynolds in the same case as two velocity inputs, my case is incompressible case, if I defined rho and Kinematic viscosity and change inlet speeds is it ok like OpenFoam and does not define Re like this:

<!-- <P> Re = 150 </P> --> <!-- commented --> <P> rhoInf = 1.2041 </P> <!-- air density at 20 c --> <P> Kinvis = 0.000015111 </P>

-------- <REGION REF="0"> <!-- Inlet_upper --> <D VAR="u" VALUE="0.00226665" /> <!-- Re 150 R --> <D VAR="v" VALUE="0" /> <N VAR="p" USERDEFINEDTYPE="H" VALUE="0"/> </REGION>

<REGION REF="1"> <!-- Inlet_lower --> <D VAR="u" VALUE="0.000846216" /> <!-- Re 56 R --> <D VAR="v" VALUE="0" /> <N VAR="p" USERDEFINEDTYPE="H" VALUE="0"/> </REGION> -----------------------

and calculate real two velocities and put it in the inlet speeds, is this ok Regards, _______________________________________________ Nektar-users mailing list Nektar-users@imperial.ac.uk https://mailman.ic.ac.uk/mailman/listinfo/nektar-users