Now I’m studying to model flow across a fuel rod bundle. The flow is turbulent and the periodic boundaries can be used. I use external force as driving mechanism of the flow and use Smagorinsky LES model to siulate the flow. Unfortunately, Smagorinsky model in palabos is static and I suppose the results I take from the simulations are somewhat different especially near the wall region. Is there a way to implement varying smagorinsky constant to Palabos ?