icoFoam vs simpleFoam
what's the difference between icoFoam and simpleFoam run with turbulence model?
icoFoam: Transient solver for incompressible, laminar flow of Newtonian fluids.
simpleFoam: Steady-state solver for incompressible, turbulent flow
pisoFoam: Transient solver for incompressible flow.
Turbulence modelling is generic, i.e. laminar, RAS or LES may be selected.
look in source, you can find description for each solver!;)
if you compare them, you will find little differences
in momentum equation fvm::ddt(U) is omited because it solves for steady-state
in icoFoam friction term is like that fvm::laplacian(nu, U) which does not count turbulence effect
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