CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   Main CFD Forum (http://www.cfd-online.com/Forums/main/)
-   -   Tool for converting and estimating turbulence boundary conditions (http://www.cfd-online.com/Forums/main/89577-tool-converting-estimating-turbulence-boundary-conditions.html)

pete June 16, 2011 15:45

Tool for converting and estimating turbulence boundary conditions
 
I have started to write a small online tool to convert and estimate turbulence boundary conditions for two-equation models. The tool is still not finished. It currently just has some basic conversions between k, epsilon, omega, turbulence intensity, turbulence length-scale and eddy-viscosity ratio.

The estimation part is far from finished. I will add more estimations for different types of boundary conditions (fully-developed pipe flow, grid-generated turbulence, ...)

You can find an early version of the tool here:

http://www.cfd-online.com/Tools/tp.php

Please give me your feedback on this. Please also tell me what other conversions and estimations you think I should add.

pete June 20, 2011 13:52

I have improved the conversions and fixed an error I found. As before a very early version is available here:

http://www.cfd-online.com/Tools/tp.php

The tool can now convert between: k, epsilon, omega, turbulence intensity, turbulence length scale and eddy viscosity ratio.

I still need to add a lot of more estimation formulas and the tool currently uses the length-scale as defined by Wilcox. I will later also add the possibility to also use a length-scale based on the mixing-length, as used by for example Fluent, Phoenics and CFD-ACE.

What do you think about this tool, should I continue to make it more complete and make it available on CFD Online or is it something you will never use anyway? Have you got any suggestions on suitable estimations to add?


All times are GMT -4. The time now is 21:57.