Correcting k(grad U) expression

src/turbulenceModels/incompressible/LES/dynLagrangian/dynLagrangian.H

@@ -154,8 +154,9 @@ public:
         tmp<volScalarField> k(const tmp<volTensorField>& gradU) const
         {
             return
-                2.0
-              * pow((2.0/sqrt(2.0))*sqrt(ce_)*flm_/fmm_, 2.0/3.0)/ce_
+                pow(2.0, 4.0/3.0)
+              * pow(flm_/fmm_, 2.0/3.0)
+              * pow(ce_, -2.0/3.0)
               * sqr(delta())*magSqr(dev(symm(gradU)));
         }