Varying Injection point

vijayravisankar · May 1, 2017, 15:43

Hello,
I am trying to vary the injection point after every iteration such that the streamline flow I am creating has a flow continuously and does not start from a fixed injection point after every iteration. Is there any way to set the injection point after every iteration is the end point of streamline at end of iteration.

Thank you so much.

Deranda · May 5, 2017, 01:47

so do you talk about lagrangian particles or DEM? Or do you just wann streamlines? There's an option under derived parts.
If you wanna change the injectionpoint of a lagrangian injector, you have to do it manually or write a macro in Java.

vijayravisankar · May 5, 2017, 11:32

Hey. Thank you so much for your response. I am trying to inject a tracer particle at the inlet and check the flow pattern of the particle. Since my particle is pretty small, I expect them to follow the streamline, so tracking the streamline should be fine as well

I changed the length of the streamline and I believe I'm getting what I want, although I am not really sure though.

May 1, 2017, 15:43	Varying Injection point	#1
vijayravisankar New Member Vijay Ravisankar Join Date: May 2017 Posts: 2 Rep Power: 0	Hello, I am trying to vary the injection point after every iteration such that the streamline flow I am creating has a flow continuously and does not start from a fixed injection point after every iteration. Is there any way to set the injection point after every iteration is the end point of streamline at end of iteration. Thank you so much.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
UDF for particle injection using file	shahjehan	Fluent UDF and Scheme Programming	2	June 28, 2020 10:44
[snappyHexMesh] How to define to right point for locationInMesh	Mirage12	OpenFOAM Meshing & Mesh Conversion	7	March 13, 2016 14:07
[General] 2 datas on one plot	Akuji	ParaView	46	December 1, 2013 14:06
[snappyHexMesh] determining displacement for added points	CFDnewbie147	OpenFOAM Meshing & Mesh Conversion	1	October 22, 2013 09:53
Floating point error and divergence detected	aannjj	FLUENT	0	July 2, 2013 03:44

May 5, 2017, 01:47		#2
Deranda Member Nils Join Date: Nov 2015 Posts: 59 Rep Power: 10	so do you talk about lagrangian particles or DEM? Or do you just wann streamlines? There's an option under derived parts. If you wanna change the injectionpoint of a lagrangian injector, you have to do it manually or write a macro in Java.

May 5, 2017, 11:32		#3
vijayravisankar New Member Vijay Ravisankar Join Date: May 2017 Posts: 2 Rep Power: 0	Hey. Thank you so much for your response. I am trying to inject a tracer particle at the inlet and check the flow pattern of the particle. Since my particle is pretty small, I expect them to follow the streamline, so tracking the streamline should be fine as well I changed the length of the streamline and I believe I'm getting what I want, although I am not really sure though.