CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

Wind tunnel contraction turbulence intensity fluctuations

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

LinkBack Thread Tools Search this Thread Display Modes
Old   December 12, 2020, 03:48
Default Wind tunnel contraction turbulence intensity fluctuations
New Member
Join Date: Dec 2020
Posts: 2
Rep Power: 0
Dasun is on a distinguished road
I am fairly new to using Ansys fluent and currently trying to simulate the flow inside a subsonic low speed wind tunnel contraction. I have created the 3D model using Solidworks and used a hexahedral mesh with edge sizing done to create a finer resolution near the boundary. I used a SST K-w model and specified the velocity of the velocity inlet and pressure of the pressure outlet. I specified the turbulence intensity of the inlet to be 1%.

However, the result from the simulation generates a relatively high turbulence intensity at the contraction outlet. And I tried to recreate a research paper finding and ran to the same problem of high turbulence intensity.

I have attached the results I obtained in my simulation.

Can anyone shed any light on this matter ?

Thanks in advance.
Attached Images
File Type: png FFF.png (56.8 KB, 7 views)
File Type: png GGG.png (55.5 KB, 5 views)
File Type: jpg FFF-32-00037.jpg (160.0 KB, 5 views)
Dasun is offline   Reply With Quote


ansys fluent, contraction, turbulence intensity, wind tunnel

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
Displaying Turbulence Intensity in LES and creating a constant Turbulence Intensity Anwer FLUENT 1 August 8, 2016 17:59
Turbulence intensity - cross wind on a body Fabio88 Main CFD Forum 0 May 4, 2015 04:44
[How to obtain supersonic flow inside a supersonic wind tunnel ?] yx213 Siemens 1 September 17, 2014 14:52
About Turbulence Intensity (Pipe flow assimilated) gRomK13 Main CFD Forum 1 July 10, 2009 04:11
Wind Tunnel Website now online Mike Worthey Main CFD Forum 0 June 6, 2000 03:27

All times are GMT -4. The time now is 18:01.