Get the Particles ID

souria · December 3, 2014, 10:30

Hey every one,

I'm using DPM for particles tracking. So, I write UDF that let me track velocity (U,V,W) and positions of every particle that touch the bottom. But, Now I want to have the ID of these particles ! I don't know which symbol to use for such stuff :
Herein is the line :

fprintf (f2, "%f %f %f %f %f %f %e \n",x,y,z,velpu,velpv,velpw,P_INJ_ID(P_INJECTION(p )));

So it gave me the x,y,z,u,v,w but it gave me 0 for the ID !!!

I suppose P_INJ_ID(P_Injection(p) isn't the right one ???

Help please

Thanks

souria · December 3, 2014, 10:48

Thank you, I have found the solution :

I should put : ID=p->part_id instead P_INJ_ID(P_INJECTION(p))

Nice day

toto98 · December 23, 2017, 23:28

i have used your solution but it's still give me 0 for particle id. is it because the newer version of fluent? I use ansys 16

toto98 · December 23, 2017, 23:34

I change the % to %e and know it gives me a number with e-323. does it not a simple integer?

pat-cfd · August 16, 2018, 21:01

^ and ^^

use TP_ID(tp) and display it as a real number

December 3, 2014, 10:30	Get the Particles ID	#1
souria Member souria Join Date: Mar 2013 Location: Nancy Posts: 66 Rep Power: 13	Hey every one, I'm using DPM for particles tracking. So, I write UDF that let me track velocity (U,V,W) and positions of every particle that touch the bottom. But, Now I want to have the ID of these particles ! I don't know which symbol to use for such stuff : Herein is the line : fprintf (f2, "%f %f %f %f %f %f %e \n",x,y,z,velpu,velpv,velpw,P_INJ_ID(P_INJECTION(p ))); So it gave me the x,y,z,u,v,w but it gave me 0 for the ID !!! I suppose P_INJ_ID(P_Injection(p) isn't the right one ??? Help please Thanks

December 3, 2014, 10:48		#2
souria Member souria Join Date: Mar 2013 Location: Nancy Posts: 66 Rep Power: 13	Thank you, I have found the solution : I should put : ID=p->part_id instead P_INJ_ID(P_INJECTION(p)) Nice day wc34071209 and myaghoobi2 like this.

December 23, 2017, 23:28	Particle ID	#3
toto98 New Member kresnadevaihza Join Date: Dec 2017 Posts: 3 Rep Power: 8	i have used your solution but it's still give me 0 for particle id. is it because the newer version of fluent? I use ansys 16

August 16, 2018, 21:01	particle ID	#5
pat-cfd New Member Patrick Join Date: Jul 2018 Posts: 4 Rep Power: 8	^ and ^^ use TP_ID(tp) and display it as a real number

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December 23, 2017, 23:34		#4
toto98 New Member kresnadevaihza Join Date: Dec 2017 Posts: 3 Rep Power: 8	I change the % to %e and know it gives me a number with e-323. does it not a simple integer?