 |
 |
 |
|
|
|
[Sponsors] | ||||
June 5, 2013, 07:28
|
Eddy viscosity ratio in interDyMFoam?
|
#1 |
|
New Member
Pal Schmitt
Join Date: Aug 2010
Location: Belfast
Posts: 21
Rep Power: 17  |
Hi,
I simulated a case of a floating body in shallow water which unfortunately I cannot share. It compares very well to experimental results and everything seems good, until I look at the turbulence modeling (komegaSST RANS model). I want to visualize for the eddy viscosity ratio, For water I used nu=1e-6. m^2/s, Vorticity looks like what i expected but nut gives values of up to 0.001m^2/s. Using the paraview calculator and just dividing nut/nu for the water phase gives very high eddy viscosity ratios... I cannot find the error and the dimensions seem correct, is it still possible that I need to divide by density? Is there a bug in interFOAM in OF 2.1.x? Dividing by density of water gives much more reasonable results but I cannot justify it... Confused.... Cheers, Pal |
|
|
|
|
|
March 9, 2014, 04:57
|
|
#2 |
|
New Member
esmaeil
Join Date: Jul 2013
Location: Iran
Posts: 5
Rep Power: 14 |
hi pal
i have the same problem too. how you solved your problem? tnx |
|
|
|
|
|
 |
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Problem with divergence | TDK | FLUENT | 13 | December 14, 2018 07:00 |
| Ratio of eddy viscosity to molecular viscosity : Laminar or turbulent flow? | JuPa | CFX | 7 | September 9, 2013 08:45 |
| Eddy viscosity ratio to get the boundary layer thickness | Cecco | CFX | 3 | May 28, 2013 12:17 |
| Eddy viscosity ratio and LES | Lance | CFX | 13 | April 29, 2013 20:02 |
| Question about eddy viscosity ratio limit | Piti | CFX | 2 | January 17, 2008 17:49 |
Linear Mode
