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

Reversed Flow in xxx faces

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   February 26, 2021, 05:42
Default Reversed Flow in xxx faces
  #1
New Member
 
Sathish H
Join Date: Nov 2020
Posts: 1
Rep Power: 0
Satz is on a distinguished road
Greetings,

I am simulating flow around NACA0012 Airfoil for different angle of attack (10 to 80) to determine Cl and Cd. I am using C mesh having appropriate computational domain based on literature. Velocity inlet is prescribed to C curve and sides while pressure outlet is used far downstream. I have simulated for 10 and 20 degrees for which the results agree with the experimental work. But for 30 deg case, REVERSE FLOW occurs in some faces of the domain. I would like to clarify my doubts,

1. Does reverse flow affects the accuracy of the results
2. What should I do to get rid of the Reverse flow problem?
3. If for some iterations the reverse flow exists and later disappears after some iterations, will that have effect on the results?

Enclosed Mesh file -Screenshot(105)
Attached Images
File Type: png Screenshot (105).png (51.5 KB, 5 views)
Satz is offline   Reply With Quote

Reply

Tags
ansys fluent 19.2, fluent - parallel, high angles of attack, naca 0012, reverse flow

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
[snappyHexMesh] SHM is not extruding/adding Layers everywhere matthiasd OpenFOAM Meshing & Mesh Conversion 2 October 16, 2016 16:45
SigFpe when running ANY application in parallel Pj. OpenFOAM Running, Solving & CFD 3 April 23, 2015 14:53
Cluster ID's not contiguous in compute-nodes domain. ??? Shogan FLUENT 1 May 28, 2014 15:03
createPatch Segmentation Fault (CORE DUMPED) sam.ho OpenFOAM Pre-Processing 2 April 21, 2014 02:01
[snappyHexMesh] snappyHexMesh won't work - zeros everywhere! sc298 OpenFOAM Meshing & Mesh Conversion 2 March 27, 2011 21:11


All times are GMT -4. The time now is 13:55.