canard les divergence continuity fluent

Mateusz · August 22, 2012, 10:18

hi i need to simulate flow over canard wing and horizontal tail using LES, unfortunately when i run calculations continuity residuals are starting going up and down after 100 iterations what i have to do, i think that problem is in my mesh, it is automaticly generated because i'm new in CFD and i dont know how it should look like for my cause. plz help. my email: koku@onet.eu

flotus1 · August 22, 2012, 11:00

Trying to set up a LES calculation as a beginner in CFD is quite ambitious, to say the least.
The only textbook about LES I know suitable for beginners is in german. But i am sure you will find something similar in english language.

As far as your specific question is concerned: the mesh is only one of the many issues which have to be dealt with carefully in a LES.

Mateusz · August 22, 2012, 11:23

thx for reply flotus1

, its not my idea, my promoter told me to do LES simulations to my thesis.

he is not even a beginner... unfortunately i dont know german ;/ , one more question, what is difference between structural and nonstructural mesh, calculating time? results?

August 22, 2012, 10:18	canard les divergence continuity fluent	#1
Mateusz New Member Mateusz Join Date: Aug 2012 Location: Kraków Posts: 16 Rep Power: 13	hi i need to simulate flow over canard wing and horizontal tail using LES, unfortunately when i run calculations continuity residuals are starting going up and down after 100 iterations what i have to do, i think that problem is in my mesh, it is automaticly generated because i'm new in CFD and i dont know how it should look like for my cause. plz help. my email: koku@onet.eu

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Transient simulation not converging	skabilan	OpenFOAM Running, Solving & CFD	14	December 16, 2019 23:12
convergence problem when use pisoFoam, LES for wind tunnel case	Forrest_Lei	OpenFOAM	3	July 19, 2011 06:00
Convergence moving mesh	lr103476	OpenFOAM Running, Solving & CFD	30	November 19, 2007 14:09
IcoFoam parallel woes	msrinath80	OpenFOAM Running, Solving & CFD	9	July 22, 2007 02:58
LES mean value (in Fluent)	jay	Main CFD Forum	0	November 8, 2002 10:59

August 22, 2012, 11:00		#2
flotus1 Super Moderator Alex Join Date: Jun 2012 Location: Germany Posts: 3,399 Rep Power: 46	Trying to set up a LES calculation as a beginner in CFD is quite ambitious, to say the least. The only textbook about LES I know suitable for beginners is in german. But i am sure you will find something similar in english language. As far as your specific question is concerned: the mesh is only one of the many issues which have to be dealt with carefully in a LES.

August 22, 2012, 11:23		#3
Mateusz New Member Mateusz Join Date: Aug 2012 Location: Kraków Posts: 16 Rep Power: 13	thx for reply flotus1 , its not my idea, my promoter told me to do LES simulations to my thesis. he is not even a beginner... unfortunately i dont know german ;/ , one more question, what is difference between structural and nonstructural mesh, calculating time? results?