4 Replies Latest reply on Apr 30, 2014 2:46 AM by Jared Conway

    Not getting downforce readings on bluff body diffuser. help

    Terter Ertyery

      Hi, I am using flow simulation 2012 and I am running tests on bluff body diffusers however i am not getting enough downforce as compared to other studies, The drag force is double what the downforce is.

       

      I have a real wall moving at the same speed as the airflow to act as a moving floor,

       

      I attached images of the pressure and velocity profiles, on the left are my results and on the right from someone elses study in different software. As you can see i dont get increased speed under the body and therefore no pressure difference.

       

      Is it something to do with the meshing? or anything else i am missing? swqqq.png