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Old   January 25, 2008, 03:24
Default Natural Convection Experimental Data
  #1
JensonButton
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Can someone suggest me where to find simple Natural Convection benchmarks.I need measured data (books or articles) to better understand how to tune model parameters in CFX simulations involving heat transfer and buoyancy. Thank You.
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Old   January 25, 2008, 05:44
Default Re: Natural Convection Experimental Data
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Rogerio Fernandes Brito
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See my Doctorate Thesis (39.2 MB, in Portuguese) and my Masterīs Dissertation (21.8 MB, in Portuguese), please go to http://rogeriofernandesbrito.googlepages.com/. There, you will find Nusselt number results for experimental data.

Best Regards!

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Old   January 26, 2008, 06:41
Default Re: Natural Convection Experimental Data
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TITAN Algorithms
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see following from:

http://www.titanalgorithms.com/hyper...ons/index.html


http://www.titanalgorithms.com/hyper...c_geometry.png - Natural Convection Geometry

http://www.titanalgorithms.com/hyper...eometry_bc.png - Boundary Conditions

http://www.titanalgorithms.com/hyper...ocityfield.png - Velocity Field

http://www.titanalgorithms.com/hyper...emperature.png - Temperature Field

http://www.titanalgorithms.com/hyper...comparison.png - Comparison with Experiment

Last edited by wyldckat; March 9, 2014 at 17:19. Reason: removed direct images that were showing publicity, as the site is now dead
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Old   January 26, 2008, 08:43
Default Re: Natural Convection Experimental Data
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Rogerio Fernandes Brito
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Good morning Mr. TITAN Algorithms,

Do you have a simple heat conducting benchmark within a solid sample with boundary conditions of time variable heat flux and with all the faces of the solid sample submitted to a constant convection heat transfer coefficient ( for example, h = 20 [W/(mēK)] and Tinfinity = 302.35 [K] )?
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Old   January 27, 2008, 06:11
Default Re: Natural Convection Experimental Data
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TITAN Algorithms
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well nothing of the top of my head. In the purest sense, you have a slab, one end Dirichet BC and at the other, Neumann. Would be easy to generate simulation cases but you would need to use expansion methods to solve it analytically. See the time transient slab validations on our validation page.

regards

SSD
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Old   January 27, 2008, 07:49
Default Re: Natural Convection Experimental Data
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Rogerio Fernandes Brito
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Please, could you show us the link of it?

Gracias!
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Old   January 27, 2008, 07:51
Default Re: Natural Convection Experimental Data
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Rogerio Fernandes Brito
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Please, see the link about my doubt/subject: http://www.cfd-online.com/Forum/cfx.cgi?read=24292

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