|
[Sponsors] |
supersonic flow at inlet and subsonic flow at outlet |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
March 13, 2011, 00:11 |
supersonic flow at inlet and subsonic flow at outlet
|
#1 |
New Member
pradeep
Join Date: Mar 2011
Posts: 2
Rep Power: 0 |
Plz help me
i m working on supersonic flow initial conditions Mach no.1.5 inlet condition velocity and total pressure -supersonic flow outlet condition-subsonic flow i m getting problem is slover mach no. is going very high then crash it plz help me whatever condition is required for this type of problem. |
|
March 13, 2011, 06:46 |
|
#2 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,850
Rep Power: 144 |
Try very small physical time steps to get things started. If that does not work try local time scale factor. Once things are starting to converge go back to physical time scale.
|
|
March 14, 2011, 04:58 |
supersonic flow at inlet and subsonic flow at outlet
|
#3 |
New Member
pradeep
Join Date: Mar 2011
Posts: 2
Rep Power: 0 |
thank you very much Glenn Horrocks,
i tried but still i m getting problem i mention about the boundary conditions and error --------------------------------------------------------------------+ | ERROR #001100279 has occurred in subroutine ErrAction. | | Message: | | Floating point exception: Overflow | | | | | | | | | | | +--------------------------------------------------------------------+ +--------------------------------------------------------------------+ | ERROR #001100279 has occurred in subroutine ErrAction. | | Message: | | Stopped in routine FPX: C_FPX_HANDLER | | | | | | | | | | | +--------------------------------------------------------------------+ +--------------------------------------------------------------------+ | An error has occurred in cfx5solve: | | | | The ANSYS CFX solver exited with return code 1. No results file | | has been created. | +--------------------------------------------------------------------+ End of solution stage. +--------------------------------------------------------------------+ | The following user files have been saved in the directory | | F:\run\plasam_101_010: | | | | mon | +--------------------------------------------------------------------+ This run of the ANSYS CFX Solver has finished. 1. Diameter: 1m 2. Mach no.:1.5 3.temp: 1300k 4.Velocity at inlet:1053m/s(cal from mach no.) 5. at outlet condition: mass flow rate:224.3 plz tell me the process its very urgent plz help me |
|
March 14, 2011, 17:02 |
|
#4 | |
New Member
Join Date: Mar 2011
Posts: 6
Rep Power: 15 |
Quote:
|
||
Tags |
deep |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Probelm with supersonic exhaust to ambient | newj | CFX | 2 | August 9, 2012 19:01 |
Problems modeling subsonic engine air inlet with flow separation | TWaung | CFX | 2 | March 29, 2009 19:42 |
subsonic inlet or supersonic inlet? | mali | CFX | 0 | November 28, 2008 21:57 |
Outlet BC for subsonic flow in pipe | andrea panizza | FLUENT | 6 | May 10, 2003 08:44 |
Mass Flow Inlet | Pravir Kumar Rai | FLUENT | 0 | February 19, 2003 15:03 |