question about roughness and laminar viscosity +sps turbulence model

eduardoRD

Hi all,

I know how ViscoBoundFactor works in the artificial Viscosity model, but how do you set the roughness of the boundaries when the laminar viscosity + sps turbulence model is used?

thanks

Alex

it works in the same way:

in the case of laminar viscosity + sps the value of viso is the kinematic viscosity (typically 10^(-6) m^2s for water)

therefore the visco used betwenn boundary and fluid will be visco*ViscoBoundFactor

however the option ViscoBoundFactor was designed to be used with artificial viscosity since we are already using a numerical artifice

Regards