Hi,

I am trying to simulate 2D wind turbine with dynamic meshing and 6 dof solver of Fluent. My objective is to calculate omega based on torque generated due to impingment of air on blade surface.

I have written an udf code for CG_MOTION in which I am running a loop over the faces of blade wall and calculating omega at every time step. 

my doubts are:

1) to use 6 dof solve, I need to constraint the turbine so that it have only one degree of freedom, that is rotory motion along z axis. That can be easily done using SDOF_PROP macro. But can I attach 2 udfs to the blade wall zone, one defining its CG_MOTION and other SDOF_PROP, or can I insert my formula for calculation of torque and omega in SDOF macro only?

 

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