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Forum: Fluent UDF and Scheme Programming

August 7, 2012, 04:46

Replies: 11

Velocity gradient on edge

Views: 4,307

Posted By mvee

I need to define only DVDX as zero while other...

I need to define only DVDX as zero while other component will be obtained through the solver. If i define this through the specified shear then the solver will assume all component as zero.

Thank...

Forum: Fluent UDF and Scheme Programming

August 7, 2012, 00:23

Replies: 11

Velocity gradient on edge

Views: 4,307

Posted By mvee

Yes, you are correct. The cell values are decided...

Yes, you are correct. The cell values are decided by the imposed boundary condition. I would like to define zero velocity gradient as boundary condition only in one direction not in the other...

Forum: Fluent UDF and Scheme Programming

August 6, 2012, 05:12

Replies: 11

Velocity gradient on edge

Views: 4,307

Posted By mvee

Velocity gradient on edge

Hi Gearboy

If i consider du/dx = 0 and then if i replace line "F_PROFILE(f,t,i) =C_U(c0,t0) -2*(xc[0]-xf[0]);" by "F_PROFILE(f,t,i) =C_U(c0,t0);", will it work? This is to define zero velocity...

Forum: Fluent UDF and Scheme Programming

August 4, 2012, 04:57

Replies: 11

Velocity gradient on edge

Views: 4,307

Posted By mvee

Velocity gradient on edge

Hi

I need to define constant velocity gradient on the edge. I though to define the value of shear stress but it will mislead due to the eddy viscosity. Hence i thought to define it through UDF. I...

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