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

Human Powered Vehicle Simulation

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

Reply
 
LinkBack Thread Tools Display Modes
Old   December 24, 2009, 13:39
Default Human Powered Vehicle Simulation
  #1
New Member
 
Join Date: Dec 2009
Posts: 25
Rep Power: 7
robinfisichella is on a distinguished road
Hi Guys, im running a simulation on a Human Powered Vehicle and trying to match the results to wind tunnel and previous cfd published results.
Im new to CCM+ and CFD in general and wondered if i could get a few pointers.

  • Is it possible to change the physics model after you've started iterating and clear the previous iterations? I tried changing them after like 300 iterations but it seemed to continue with the old inputs??
  • Does the same go for reports etc, do they need to be created before the first run.
Just some general info about the project:

  • HPV geometry running with and without fairings, away from and close to ground.
  • geometry is highly streamlined, so hopefully no pressure drag only skin friction.
  • Inviscid/Viscous inputs
  • Seg flow, ideal gas, incompressible, 3d, stationary.
ive just done one inviscid run which converged pretty quickly, wiith a coarish mesh, some laminar separation towards TE probably due to coarse mesh.

If anyone could help me that would be great!
Attached Images
File Type: jpg Coarse_Inviscid.jpg (38.9 KB, 40 views)
robinfisichella is offline   Reply With Quote

Old   January 7, 2010, 04:41
Default
  #2
New Member
 
Join Date: Nov 2009
Posts: 12
Rep Power: 7
Arconis is on a distinguished road
-I've changed constant density model to ideal gas and my measures changed, so i guess you can change any physics model and it will work well

-The reports can be created when you want, but the monitors must be created before iterating
Arconis is offline   Reply With Quote

Old   January 7, 2010, 06:21
Default
  #3
New Member
 
Join Date: Dec 2009
Posts: 25
Rep Power: 7
robinfisichella is on a distinguished road
cool thanks for that.
robinfisichella is offline   Reply With Quote

Reply

Thread Tools
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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Formula SAE Race Vehicle Bodykit 2D Simulation matchoo87 Main CFD Forum 10 September 2, 2009 19:02
Human eye simulation rt Main CFD Forum 2 June 7, 2006 10:16
Human Body Simulation - Numeric Thermal Manikin Andy Robertson Main CFD Forum 1 March 19, 2001 11:23
STAR-CD in Vehicle Air Conditioner Simulation Milan CD-adapco 5 August 5, 2000 05:37


All times are GMT -4. The time now is 06:48.