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Forum: Fluent UDF and Scheme Programming

October 31, 2014, 03:12

Replies: 6

DEFINE_DPM_BC simple reflect at wall

Views: 1,832

Posted By pakk

I don't see how you can use the position vector...

I don't see how you can use the position vector (you mean the particle position vector?) to get the impact angle. So I would use the particle velocity vector and the face normal vector. You'll need...

Forum: Fluent UDF and Scheme Programming

October 30, 2014, 10:37

Replies: 6

DEFINE_DPM_BC simple reflect at wall

Views: 1,832

Posted By pakk

DEFINE_DPM_BC(example,p,t,f,f_normal,dim) { ...

DEFINE_DPM_BC(example,p,t,f,f_normal,dim)
{
// P_VEL(p) is the velocity vector of the particle
// f_normal is the normal vector of the cell face that your particle hits
// (not of unit...

Forum: Fluent UDF and Scheme Programming

October 27, 2014, 11:38

Replies: 6

DEFINE_DPM_BC simple reflect at wall

Views: 1,832

Posted By pakk

1. If you are calculating 2d axisymmetric and...

1. If you are calculating 2d axisymmetric and swirl flows, your geometry is 2-dimensional (so variable "dim" is 2), but the velocity vector is 3-dimensional (so "idim" is defined as 3).
In the...

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