|March 28, 2013, 11:48||
reversed flow in over-expanded supersonic nozzle
Join Date: Nov 2011
Posts: 45Rep Power: 5
got a headache with convergence of the solution because of reversed flow.
i do have over-expanded supersonic nozzle where the back-flow presents at the end of the nozzle wall.
pressure inlet- 6 bar (means 5 bar as gauge pressure) + To- 800K
pressure outlet- 1 bar (absolute) + To- 300K
reference- 1 bar
tried first order, solution steering, limits. nothing helps... once I got reversed flow the solution is down..
NB: have no problem with the same nozzle in CFX (using the opening at the outlet). The reason I'd like to use Fluent is because of the CUT-CELL mesh.
Any suggestion or ideas on how to get rid of the reversed flow at the end of the nozzle wall? pls help.
|Thread||Thread Starter||Forum||Replies||Last Post|
|Supersonic Flow through Nozzle||varun||OpenFOAM Running, Solving & CFD||6||October 9, 2012 03:55|
|Supersonic nozzle exit conditions||Betty||Main CFD Forum||13||May 24, 2012 00:26|
|C-D nozzle supersonic jet boundary||Gland||FLUENT||4||May 24, 2012 00:25|
|Different flow patterns in CFX and Fluent||avi@lpsc||CFX||6||April 17, 2012 01:22|
|unbounded reversed flow on outlets||kwardle||OpenFOAM||7||May 18, 2009 15:23|