Mr. Carsten Fuetterer 9 Report post Posted June 28, 2013 Hi, attached is an example of a mixer with asymmetric blade shape. This is easily done by deviding the blade profile into two sections which have separate metasurfaces and functions. With this approach the efficiency of the mixer can be increased in some situations. Edit: If you are interested of how to connect STAR-CCM+ to this project, please refer to this post. best regards Carstenpropeller_mixer_forum(25.07.13).fdb Share this post Link to post Share on other sites