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

[ANSYS Meshing] Complex Propeller Geometry. Done Yet Undone.

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   July 25, 2020, 20:28
Default Complex Propeller Geometry. Done Yet Undone.
  #1
New Member
 
Join Date: May 2018
Location: Turkey
Posts: 22
Rep Power: 8
aunmhd is on a distinguished road
Dear Meshing Community,

It has taken me a considerable amount of time to complete a hex mesh for fairly complex geometry of a propeller. Upon completion, certain quality metrics I achieved are: Quality: 0.3 and Min Angle: 18. An image of the mesh is also attached below.

However, it is unfortunate that the mesh still seems to have problems that I am unable to fathom. I am running CFD simulations with identical BC's and the difference in results I am getting is remarkable: STAR CCM calculates a thrust of 90 N while CFX calculates the same as 57000 N. Fluent says:

"The mesh contains high aspect ratio quadrilateral, polyhedral or hexahedral cells. The default algorithm used to compute the wall distance required by the turbulence models might produce wrong results in these cells..."
Is Fluent harsh on prism cells?


How can I salvage this? Thanks.
Attached Images
File Type: jpg 4um.jpg (83.1 KB, 9 views)
aunmhd is offline   Reply With Quote

Reply

Tags
fluent 12.0, icem 14.0

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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
[ICEM] Holes in complex ICEM geometry alecbann ANSYS Meshing & Geometry 2 April 4, 2019 03:40
Solving complex geometry with compressible flow gfoam FLUENT 1 May 19, 2017 14:56
[ANSYS Meshing] Problem with meshing a complex Geometry (Hex) fluent_beiyo ANSYS Meshing & Geometry 8 April 26, 2014 04:55
[GAMBIT] meshing in GAMBIT, a flow through a pipe having complex inflow geometry mazhar1613 ANSYS Meshing & Geometry 1 January 11, 2012 23:18
plane cutting complex geometry in the middle Lilly FLUENT 0 July 27, 2011 09:01


All times are GMT -4. The time now is 03:05.