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

Fluent validation test for calculate the drag of a car

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 12, 2009, 13:59
Default Fluent validation test for calculate the drag of a car
  #1
New Member
 
Oscar
Join Date: Jun 2009
Posts: 1
Rep Power: 0
ostervi is on a distinguished road
Hello. This is my first post (and sorry for my english). I want to calculate the drag of a car, but i'm not sure if i'm doing the calculations well. For that reason, i want to check the drag of a simple body (like a sphere) and check if the drag coefficient is correct. In this case, i will know that the Fluent configuration (viscous model, calculation, mesh, etc..) will work for a car. So, i have this questions for make a case of a simple body:
  • How must be the mesh? mesh only with a size function is a good way to mesh a sphere, or i must to put boundary layer too?
  • In Fluent, what's the best viscous model to do the calculation? K-epsilon or S-A?
  • I need to modify something, like calculation options, solver, boundary conditions, etc?
  • The most important: I've get some drag coefficient doing various tests with some simple bodies at different reynolds number, but i don't know what is the real valour for the drag coefficient of this bodies, to know if i'm doing well the configuration. (normally i use a sphere to do the test)
So, basically, i need to know how configure Fluent to do a external test of a sphere (or other body), and what is the valour Fluent must give me. So i will extrapolate to other cases. When i have this information, i will do the test for a car.

Thanks for your help!!
ostervi 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
STANDARD TEST CASES FOR CFD-CODE VALIDATION PRAVEEN CHANDRASHEKAR Main CFD Forum 8 September 19, 2018 06:01
Test case for sliding mesh validation sourabh Main CFD Forum 1 February 7, 2006 19:02
Tracer Test on FLUENT Priyal Main CFD Forum 1 August 27, 1999 12:13
Test Cases for Turbomachine Code Validation Apurva Shukla Main CFD Forum 7 August 12, 1999 14:10
Heat Transfer Validation test case Chris Whitney Main CFD Forum 1 July 21, 1999 15:36


All times are GMT -4. The time now is 12:46.