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

Naca 0012 Cd Test

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

Reply
 
LinkBack Thread Tools Display Modes
Old   December 8, 2010, 12:33
Default Naca 0012 Cd Test
  #1
New Member
 
Join Date: Jun 2009
Posts: 6
Rep Power: 8
ferranpm is on a distinguished road
Hello people!

I want to test the profile NACA 0012 for differents alfa and compare the results with experimental and XFoil graphics. It should be simple, but my results are not satisfactory:

ro= 1,225 Kg/m^3
Mu_air=1,75*10^5 Kg/(m*s)
D=1

with these Data, i obtain the differents velocities (in m/s):

Re=200K -> vs= 2,8
Re=500k -> vs= 7,102
Re=3M -> vs=42,612
Re=6M -> vs=85,224

For alpha= 0°and different viscosity theories:

RE=6M
Spall. Alm. K-E Stndrd K-w SST Trans.flow X-Foil(=Exper.)
cd 3.31*10^(-2) 6.2*10^(-2) 3.32*10^(-2) 5.08*10^(-3)


RE=1M
K-E Stndrd K-w SST Trans.flow X-Foil(=Exper.)
cd 2.1*10^(-3) 1.73*10^(-3) 5.4*10^(-3)


RE=200k
Spall. Alm. K-E RNG K-w SST Trs.flow X-Foil(=Exper.)
cd 6.4*10^(-5) 1.5*10^(-4) 3.14*10^(-4) 1.02*10^(-2)



For Low-Re I thought that K-omega sst could be better than K-Epsylon, but I don't see a good result...anywhere (the mesh is good, from the profes.)


Thank you for your help!




Ferran
ferranpm is offline   Reply With Quote

Reply

Tags
naca 0012

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
critical error during installation of openfoam Fabio88 OpenFOAM Installation 21 June 2, 2010 03:01
OF 1.6 | Ubuntu 9.10 (64bit) | GLIBCXX_3.4.11 not found piprus OpenFOAM Installation 22 February 25, 2010 14:43
Problems in compiling paraview in Suse 10.3 platform chiven OpenFOAM Installation 3 December 1, 2009 08:21
Problems with flat plate and NACA 0012 Lift/Force Harly FLUENT 0 June 18, 2007 10:02
NACA 0012 simulation results Luis FLUENT 3 February 15, 2006 12:42


All times are GMT -4. The time now is 14:15.