Learning Forum

[pavankonchada123]

   Hi

I want to change my position of injection for every time step by a magnitude of 0.0001 in y direction. Is my udf ok 

#include "udf.h"

#include "dpm.h"

DEFINE_DPM_INJECTION_INIT(Bahn, I) 

{ 

Particle *p; 

real injposition = 0.75; 

 

 

loop(p,I->p) 

{ 

P_POS(p)[1] = injposition + 0.0001;

 

injposition = P_POS(p)[1];

 

} }

[Rob]

What happens when you try it? 

[pavankonchada123]

It worked when I used current time in it

 

[pavankonchada123]

Another doubt, does define_dpm_bodyforce macro helps in defining force on all particles in domain at all instances of time??

[Rob]

It will add a body force whenever it's called at whatever value is defined: you need to specify when it's active and what it does.