|July 24, 2013, 12:11||
Calculation of Turbulent Qualities
Join Date: Jun 2013
Location: Lewisburg, PA
Posts: 18Rep Power: 4
Good evening everyone,
I'm doing an RANS simulation of a jet and am required to calculate k and epsilon from experimental data. I am having a lot of trouble achieving convergence with my model and was wondering if anyone would have time to check my calculation of k and epsilon.
The spreadsheet is attached;
In the first sheet, I calculate k and epsilon from experimental hotwire values. These give me two fluctuating velocity components and velocities. I estimate the flow-normal fluctuating velocities to be the time for the purposes of this calculation.
In the second sheet, I estimate k and epsilon using empirical relationships. The case for this is a pipe with a flow. The velocities along the face of the pipe are given by vx, vy, etc...
Can someone do a sanity check and tell me if I'm missing some important relationship? I'm new to CFD/this level of fluids and any help would really be appreciated.
|Thread||Thread Starter||Forum||Replies||Last Post|
|LES and total turbulent kinetic energy||Boerge||FLUENT||1||September 8, 2012 11:41|
|SimpleFoam: Laminar vs. Turbulent Convergence||JasonG||OpenFOAM||0||June 2, 2011 08:29|
|Turbulent Viscosity Limit but only showing for imported case||plunge11||FLUENT||0||March 9, 2011 08:35|
|Laminar vs Turbulent Navier-Stokes||truman||Main CFD Forum||6||March 7, 2011 14:44|
|turbulent eddie||sakti||Main CFD Forum||1||October 8, 1998 12:28|