CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

boundary Mach number exceeds maximum limit !

Register Blogs Community New Posts Updated Threads Search

Like Tree1Likes
  • 1 Post By Aysiyi

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 24, 2014, 13:23
Default boundary Mach number exceeds maximum limit !
  #1
Member
 
aysiyi
Join Date: Nov 2012
Posts: 40
Rep Power: 14
Aysiyi is on a distinguished road
HI :
guys ,i am simulating a centrifugal compressoe which contains an impeller and a diffuser, the BC is : pressure inlet, mass flow outlet ,in the simulation ,it shows that
Warning: boundary Mach number exceeds maximum limit on mass-flow-inlet-7 on 640 faces
bounding Mach number to maximum limit =9.800000e-01

my quetion is : what does it mean and what i should do to solve lt ?
anthony761 likes this.
Aysiyi is offline   Reply With Quote

Old   December 21, 2014, 17:15
Default
  #2
New Member
 
mohamed mohsen
Join Date: Oct 2012
Posts: 29
Rep Power: 14
sehs15 is on a distinguished road
any help with this
sehs15 is offline   Reply With Quote

Old   December 12, 2015, 01:19
Default Find solution for this issue?
  #3
New Member
 
Senthilkumar
Join Date: Oct 2012
Posts: 29
Rep Power: 14
aero.senthilkumar is on a distinguished road
Have you solved this issue?. If yes, please share your experience.

Quote:
Originally Posted by Aysiyi View Post
HI :
guys ,i am simulating a centrifugal compressoe which contains an impeller and a diffuser, the BC is : pressure inlet, mass flow outlet ,in the simulation ,it shows that
Warning: boundary Mach number exceeds maximum limit on mass-flow-inlet-7 on 640 faces
bounding Mach number to maximum limit =9.800000e-01

my quetion is : what does it mean and what i should do to solve lt ?
aero.senthilkumar is offline   Reply With Quote

Old   July 8, 2017, 14:15
Default
  #4
New Member
 
Mekuannint
Join Date: May 2016
Posts: 3
Rep Power: 10
meku is on a distinguished road
Probably the flow is choked!! Decreasing the mass flow rate would help!!
meku is offline   Reply With Quote

Old   January 28, 2018, 02:56
Default Thanks
  #5
New Member
 
Senthilkumar
Join Date: Oct 2012
Posts: 29
Rep Power: 14
aero.senthilkumar is on a distinguished road
Thanks meku..



Quote:
Originally Posted by meku View Post
Probably the flow is choked!! Decreasing the mass flow rate would help!!
aero.senthilkumar is offline   Reply With Quote

Reply

Tags
boudary mach number, fluent


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Diverging solution in transonicMRFDyMFoam tsalter OpenFOAM Running, Solving & CFD 30 July 7, 2014 07:20
Radiation interface hinca CFX 15 January 26, 2014 18:11
Water subcooled boiling Attesz CFX 7 January 5, 2013 04:32
Unaligned accesses on IA64 andre OpenFOAM 5 June 23, 2008 11:37
[Commercial meshers] Trimmed cell and embedded refinement mesh conversion issues michele OpenFOAM Meshing & Mesh Conversion 2 July 15, 2005 05:15


All times are GMT -4. The time now is 01:42.