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Melting of sphere in box

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Old   April 12, 2017, 07:59
Default Melting of sphere in box
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I am simulating the melting of sphere in a box in 2D. The problem Specifications are:

I.C. T_melt=1873 K
T_sphere=300 K

B.C. T_wall=1873 K

The sphere_melt interface is moving with the 2nd boundary condition using dynamic mesh. The UDF for for dynamic mesh :

#include "udf.h"
#include "math.h"
#include "dynamesh_tools.h"

#define k_f 35
#define h 2000
#define T_bath 1873
#define T_mpshell 1423
#define rho 7000
#define delta_H 275753
DEFINE_CG_MOTION(vel_interface,dt,vel,omega,time,d time)
Thread *t;
cell_t c;
real x[ND_ND];
face_t f;

When I running the solution I get error : received a fatal signal (Segmentation fault)

Please help me to get rid of this error.

Thanks in advance

link for the problem image:
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dynamic meshing, solidification/melting, udf and programming

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