Forward-Backward streamline

Tunlu · April 16, 2014, 08:57

Hi, Everybody,

I could understand forward streamline on a plane. But I couldnot understand backward streamline. How can I understand backward streamline on a plane? I would like to read about backward streamline. Thank you very much. Look forward to answer from someone.

lovecraft22 · April 17, 2014, 13:12

What is not clear about backward streamlines?
Let's say you want to generate a forward streamline from point A. This will create a line from A to B where B is downstream of A. Now, if you do a streamline from B but this time instead of generating it as forward you generate it as backward, you get exactly the same result.

Tunlu · April 17, 2014, 18:51

Hi, Lovecraft,
Thank you very much for your explanation. Now, I got a fundamental concept. Look forward to further sharing, if I have other problems in the future.

lovecraft22 · April 18, 2014, 07:05

I corrected my previous post.
Before it was:

Quote:

This will create a line from A to B where A is downstream of A

instead of

Quote:

This will create a line from A to B where B is downstream of A

as it is now.

April 16, 2014, 08:57	Forward-Backward streamline	#1
Tunlu New Member Tunlu Join Date: Aug 2013 Posts: 10 Rep Power: 12	Hi, Everybody, I could understand forward streamline on a plane. But I couldnot understand backward streamline. How can I understand backward streamline on a plane? I would like to read about backward streamline. Thank you very much. Look forward to answer from someone.

April 17, 2014, 13:12		#2
lovecraft22 Senior Member lore Join Date: Mar 2010 Location: Italy Posts: 460 Rep Power: 18	What is not clear about backward streamlines? Let's say you want to generate a forward streamline from point A. This will create a line from A to B where B is downstream of A. Now, if you do a streamline from B but this time instead of generating it as forward you generate it as backward, you get exactly the same result. Last edited by lovecraft22; April 18, 2014 at 07:04.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
compilation problem with "fvPatch::lookupPatchField"	Ya_Squall2010	OpenFOAM Programming & Development	9	November 15, 2021 22:01
[swak4Foam] GroovyBC the dynamic cousin of funkySetFields that lives on the suburb of the mesh	gschaider	OpenFOAM Community Contributions	300	October 29, 2014 18:00
Problems building Paraview 3.12 on Gentoo Linux	pajot	OpenFOAM Installation	11	April 11, 2013 08:09
[swak4Foam] installing funkySetFields	igo	OpenFOAM Community Contributions	1	November 20, 2012 20:16
Forward and Backward Euler.	Question Man.	Main CFD Forum	2	March 29, 2004 13:19

April 17, 2014, 18:51		#3
Tunlu New Member Tunlu Join Date: Aug 2013 Posts: 10 Rep Power: 12	Hi, Lovecraft, Thank you very much for your explanation. Now, I got a fundamental concept. Look forward to further sharing, if I have other problems in the future.