Learning Forum

[Jussan Jaeger]

Hello!

 

I'm trying to use the break-up kernel from fluent manual:

#include "udf.h"

#include "sg_pb.h"

#include "sg_mphase.h"

 

DEFINE_PB_BREAK_UP_RATE_FREQ(break_up_freq_tav, cell, thread, d_1)

{

real epsi, alpha, f1, f2, rho_d;

real C1 = 0.00481, C2 = 0.08, sigma = 0.07;

Thread *tm = THREAD_SUPER_THREAD(thread);/*passed thread is phase*/

epsi = C_D(cell, tm);

alpha = C_VOF(cell, thread);

rho_d = C_R(cell, thread);

f1 = pow(epsi, 1. / 3.) / ((1. + epsi)*pow(d_1, 2. / 3.));

f2 = -(C2*sigma*(1. + alpha)*(1. + alpha)) / (rho_d*pow(epsi, 2. / 3.)*pow(d_1, 5. / 3.));

return C1 * f1*exp(f2);

}

 

I get the following error during the solution: 

Node 0: Process 1660: Received signal SIGSEGV.

==============================================================================

==============================================================================

Node 1: Process 22400: Received signal SIGSEGV.

==============================================================================

===================================================================================

= BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES

= RANK 0 PID 1660 RUNNING AT DESKTOP-CF17HIG

= EXIT STATUS: -1 (ffffffff)

 

 

 

The error stops if I change epsi to a constant like "epsi = 1.;" Does anyone knows how to solve it?

[SRP]

Hi,

The error you're encountering (SIGSEGV) typically indicates a segmentation fault, which commonly occurs due to accessing memory that you don't have permission to access.

To debug Print out the values of epsi, alpha, and rho_d before using them in calculations to ensure they are not causing any issues.