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Deforming zone using DEFINE_GEOM

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Old   December 23, 2011, 22:54
Default Deforming zone using DEFINE_GEOM
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I am using this UDF to get deformation in a wall(line):

#include "udf.h"
#include "stdio.h"

DEFINE_GEOM(parabola,d,dt,position)
{
position[1] = position[0]*position[0];
}


Basically I am trying to understand how the function DEFINE_GEOM works.

I used this UDF with dynamic mesh Smoothing method and specified DEFORMING (Geometry Definiton - UDF, Meshing Options - both smoothing & Remeshing) to create dynamic zone. Then I checked the deformation in that zone(wall) using DEFINE - Zone Motion by giving Time Step and No.of Steps but there was no deformation (Is this the way to check the deformation?).

Can you please help me to get(check) the deformation in the wall.

If you have any example related to deformation of Domain please send me to raghu.suravaram@yahoo.com
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Old   March 25, 2013, 19:26
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Debanjan Deep
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I am stuck with a similar problem where I have to model a moving boundary with time. I am using Define_Geom to define it. Did you find any help or tutorial?

DD
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Old   March 26, 2013, 03:22
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Paritosh Vasava
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I think that you must have something else in your UDF that describes the motion/position of other faces/boundaries in your domain. While you have moving/dynamic face/boundary the motion of mesh attached to this face affects the meshes attached to other faces/boundaries.

I suggest you have a close look at the tutorial titled 'Using a UDF to Control the Dynamic Mesh of a Flexible Oscillating Membrane'.
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