Learning Forum

[Shravan Bharadwaj]

Hello,

          I am trying to simulate the hydrostatic bearings. I want to apply force on bearing. This force should compress the fluid zone ( Deforming Mesh ). When pressurised fluid enters the bearing, the gap should change and balance the force acting. I ultimately want to see how much the bearing gap changes and the time response.

I have used the following UDF :

    #include "udf.h"

    DEFINE_SDOF_PROPERTIES(stage, prop, dt, time, dtime)
   {
         prop[SDOF_LOAD_F_Y] = -750;

        printf ("\nstage: updated 6DOF properties");
   }

 

I tried to give deforming mesh to the two fluid gaps. I attached the UDF to the Bearing. But the mesh is not moving . How to make the mesh deform ? 

[Dato]

Hello,

Sorry that I'm not providing help. I'm a beginner to use udf. I want to ask that how do you compile the c source into Fluent? Using built in compiler or others? My udf cannot compile and load recently but it can work before. Thanks you sir.

[Shravan Bharadwaj]

Download Visual Studio Community - any version and install it. Fluent need a C/C++ compiler to compile UDF. After installing try loading the UDF in fluent.

[Rob]

Or use the built in compiler - we finally added CLANG compiler into the Fluent solver.