|
[Sponsors] |
November 28, 2018, 06:54 |
Recirculation zone length BFS
|
#1 |
Member
Nat K
Join Date: Oct 2017
Posts: 68
Rep Power: 8 |
Hi,
I am performing some LES of BFS flow and I am computing the primary recirculation zone length located behind the step. I am comparing my data with experimental data of Armaly, with difficulty. According to Armaly at Re=2000, the RZL (x/S - length of zone divided by step height) should be roughly 13.5, whereas I am getting quite large value of 20. For greater Re this also increases (linearly) whereas shows decrease. Would anyone know why this would happen? Would wall boundary conditions be the problem? I am using Smagorinsky SGS models, with a mesh of y+ < 1, and no wall functions. Any help would be appreciated |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
how to calculate recirculation length after square cylinder | khalid.elserfy | Main CFD Forum | 1 | August 17, 2015 02:30 |
[GAMBIT] periodic faces not matching | Aadhavan | ANSYS Meshing & Geometry | 6 | August 31, 2013 11:25 |
[GAMBIT] length of recirculation zone | abc | ANSYS Meshing & Geometry | 1 | June 26, 2012 03:12 |
Recirculation zone over airfoil in SST model | Nick R | CFX | 7 | March 30, 2011 20:43 |
Recirculation length | Tony Chen | Main CFD Forum | 4 | March 4, 1999 12:33 |