<div dir="ltr">Hi,<div><br></div><div>I am trying to implement a LES model which requires a term like c . Sij* to be added to the existing unfiltered viscous term. I am computing Sij* by filtering the velocity and calling comp_gije() twice. This is then included in the forcing function. This seems to work for few steps but the solution starts to blow up afterwards. I am wondering if this would be due to stability issues since the laplacian here is not calculated by any of the splitting methods. I would like to know if it would be possible to add this term to the Navier Stokes formulation that is solved each step. Any other ideas/ thoughts would be helpful. Thanks.<br>
</div><div><br></div><div>Regards<br>Shriram<br>
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