I want to add the penalty term as you suggested in the paper "Topology optimization method with finite elements based on the k-ε turbulence model" Could someone guide me on how to add the penalty terms for Eq. (11) and (12) as shown:
Thank you for the suggestion. I actually did the same as you suggested. The results were slightly different from the non-modification model. However, I am not sure that it is correct, so if someone has the experience, please also let us know.