|
[Sponsors] |
January 19, 2000, 00:16 |
Non-Reflective BC
|
#1 |
Guest
Posts: n/a
|
Hi, cfd gurus!
Can anybody tell me if there exists any technique for imposing non-reflective BC to 1D and 2D problems governed by the Euler equations? I mean the technique which can help to essentially avoid reflections from the far field, to assure full absorption of the notable moving finite-amplitude waves? Any advice will be highly appreciated. Thanks in advance, Andrei |
|
January 19, 2000, 11:31 |
Re: Non-Reflective BC
|
#2 |
Guest
Posts: n/a
|
In order to impose non reflective boundary conditions at the boundary one has to impose the conditions on the characteristics of the flow rather than on the primitive variables. The best I can do is to give you some references on the subject, and if you have some more particular questions, then just post it here and I'll try to answer them.
Review Paper: Givoli, 1991, Journal of Computational Physics, volume 94, page 1. See the open boundary treatment and discussions in the following papers: Abarbanel et al. 1991, J. Fluid Mechanics, 225,557 Gottlieb, Gunzburger and Turkel, 1982, SIAM J. Numer. Anal. 19, 671. Wasberg and Andreassen, Comput. Meth. Appl. Mech. Engrg, 80, 459 (1990). Godon and Shaviv, Comput. Meth. Appl. Mech. Engrg, 1992, 110, 171. Cheers, Patrick |
|
January 22, 2000, 11:44 |
Re: Non-Reflective BC
|
#3 |
Guest
Posts: n/a
|
Take a look at the work by Poinsot and Lele (it is a JCP paper from 1992, I forget the exact vol. no and pp). It works excellently for pure euler flows, even works very well if carefully done for vortex convection through boundaries.
Good Luck Srinivasan |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
CellZones to solve different eq in different zones | ivan_cozza | OpenFOAM Running, Solving & CFD | 13 | October 24, 2019 17:07 |
non reflective boundary conditions for incompresible flow | Pascal_doran | OpenFOAM Programming & Development | 16 | August 25, 2015 06:35 |
Reflective walls | acoustica | CFX | 7 | July 25, 2011 09:38 |
Non reflective boundary conditions | KK | CFX | 3 | February 16, 2008 10:11 |
reflective boundary conditions on generalized coor | buaalzr | Main CFD Forum | 3 | January 2, 2008 13:43 |