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Free Android App for Compressible Nozzle

Posted April 4, 2014 at 09:17 by nilyash81

https://play.google.com/store/apps/d...ozzleflowfinal

1. Compressible flow in Convergent Divergent Nozzle2. Get mode of operation under specified operating conditions- Whether nozzle is Subsonic Nozzle, Normal Shock exist in Nozzle, location of Shock, Under-expanded or Over-expanded Nozzle. Compute Thrust, Exit Velocity, Exit Temperature and Mass Flow rate.
3. Optimization of Nozzle - Optimize Nozzle keeping fixed Area ration or Pressure ratio. Find...
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Rotating diverging flow, validation #2

Posted March 20, 2014 at 07:38 by skeptik (CFD notes)

Following previous post about SRFSimpleFoam, i conclude that it's not perfect solver for simulations

Also i have had many problems with stability and convergence. Not in this simple case but in case of rotating blade.

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LESinItaly database

Posted March 19, 2014 at 13:20 by sbaffini (NuTBox)

The LESinItaly database for the turbulent channel flow at Re_tau=590 is available at:

http://www.cfdlab.polimi.it/Research/LESinItaly.tar.gz
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Rotating diverging flow, validation

Posted March 19, 2014 at 07:29 by skeptik (CFD notes)

I've found interesting article about experimental investigation of a rotating diverging flow.

http://www.lmfa.ec-lyon.fr/ISAIF/Dat...AIF8-00105.pdf

There are a good data about geometry and results so i decided to conduct simulation in SRFSimpleFoam.

what i have for 30 rad/sec and Re=15800 (3m/s at inlet)

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The coincidence is pretty good but not perfect. Data for 60 rad/sec is coming soon.
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salomeToOpenFOAM mesh conversion

Posted March 14, 2014 at 07:36 by skeptik (CFD notes)

I met one big problem when i have converted SALOME mesh by UNV format and ideasToFoam utility.

It was not usual mesh, it contained pyramids. See fig.

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I spent a lot time to achieve the same result like i can using ICEM. Only when i've found salomeToOpenFOAM script i successfully converted my mesh.

So i recommend it. The script is very helpful.

https://github.com/nicolasedh/salomeToOpenFOAM
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