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

k-w SST model problem

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 11, 2017, 16:25
Default k-w SST model problem
  #1
New Member
 
khaled zamzam
Join Date: Apr 2017
Posts: 1
Rep Power: 0
k_zamzam is on a distinguished road
I am using k-w SST model to simulate flow over an airfoil in 2D, I am a beginner to ansys Fluent so I use the default settings , I am simulating it at a Reynolds number of 1 million. The coefficient of lift has a slight error while the coefficient of drag is usually much higher than the correct result. I read this somewhere on this website and I think maybe its the problem ( "Modeling the NACA 0012 airfoil without a trip wire is more complicated, since Fluent itself is unable to predict the point along the chord where the transition from a laminar to a turbulent boundary layer takes place. One option is to manually set this transition point at Re = 5e5, which is the flat plate transition point" ) so does anyone has any idea ? please help!Also can anyone tell me the correct setting for using the k-w SST model , i also tried using unstructured and structured mesh and there is no difference in results

Last edited by k_zamzam; April 14, 2017 at 12:58.
k_zamzam is offline   Reply With Quote

Reply

Tags
airfoil 2d, k-w sst

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
Use of k-epsilon and k-omega Models Jade M Main CFD Forum 40 January 27, 2023 07:18
turn off wall functions in Transition SST model? johnp FLUENT 11 May 26, 2020 13:57
convergence problem of the SST and RNG k-e model for mixing tank ziyan7 FLUENT 0 March 8, 2011 06:13
Problem importing watertight model into CFX djk1301 ANSYS 3 February 1, 2011 22:04
expert parameters of SST model? David CFX 1 December 2, 2005 06:36


All times are GMT -4. The time now is 06:08.