CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > Siemens > STAR-CCM+

Aircraft Simulation: CL/CD Numbers Off

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 2, 2016, 14:07
Default Aircraft Simulation: CL/CD Numbers Off
  #1
New Member
 
Gabriel Malate
Join Date: May 2016
Posts: 1
Rep Power: 0
gmalate is on a distinguished road
So I am currently running an alpha sweep on an aircraft for a project and at zero alpha I'm getting some very strange numbers (lift approaches zero, drag way too high). Dobule checked my reports and everything looks like its set up right. I've attached images of the mesh and the physics setup as well as a few details. I've been having some trouble trying to pin point the issue so any help at all is appreciated! Please let me know if there any other details that would be helpful.
Attached Images
File Type: png Physics.png (26.4 KB, 13 views)
File Type: jpg Mesh.jpg (119.8 KB, 16 views)
File Type: png results%3AA_10_Stock_a0.0b0.0_Residuals.png (80.0 KB, 12 views)
File Type: png results%3AA_10_Stock_a0.0b0.0_CD Monitor Plot.png (28.1 KB, 12 views)
File Type: png results%3AA_10_Stock_a0.0b0.0_CL Monitor Plot.png (32.0 KB, 9 views)
gmalate is offline   Reply With Quote

Old   June 2, 2016, 16:03
Default
  #2
Senior Member
 
Matt
Join Date: Aug 2014
Posts: 947
Rep Power: 17
fluid23 is on a distinguished road
Have you tried create a force report to verify that it's not an error in the force coefficient report?
fluid23 is offline   Reply With Quote

Reply


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
full simulation of an aircraft with propeller effect kdrbrk FLUENT 3 January 17, 2024 03:08
Aircraft propeller simulation white FLUENT 3 January 4, 2016 02:14
Instability in transonic coupled solver simulation MachZero Main CFD Forum 0 February 17, 2015 20:47
Use homogeneous results as the initial guess for an inhomogeneous simulation JuPa CFX 5 December 26, 2014 13:44
3-D Contaminant Dispersal Simulation Apple L S Chan Main CFD Forum 1 December 23, 1998 10:06


All times are GMT -4. The time now is 20:38.