Merge pull request #15442 from tjhei/fix-step-57-convergence

fix step-57 bilinear form
dealii · Jun 23, 2023 · c6b3d46 · c6b3d46
2 parents 870d16f + 3f5ae01
commit c6b3d46
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/examples/step-57/step-57.cc b/examples/step-57/step-57.cc
@@ -457,8 +457,8 @@ namespace Step57
                 local_rhs(i) +=
                   (-viscosity * scalar_product(grad_phi_u[i],
                                                present_velocity_gradients[q]) -
-                   phi_u[i] * (present_velocity_values[q] *
-                               present_velocity_gradients[q]) +
+                   phi_u[i] * (present_velocity_gradients[q] *
+                               present_velocity_values[q]) +
                    div_phi_u[i] * present_pressure_values[q] +
                    phi_p[i] * present_velocity_divergence -
                    gamma * div_phi_u[i] * present_velocity_divergence) *