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Old   July 27, 2008, 02:55
Default How can I get the CFX technical report
  #1
Lan
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Hi everyone!

I am looking for the CFX technical report "Development and Application of a Zonal DES Turbulence Model for CFX-5 CFX-Validation Report, CFX-VAL17/0503."

How could I get the CFX technical report for can you send me a copy?

Thank you very much!

turbinesv@gmail.com
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Old   July 27, 2008, 07:21
Default Re: How can I get the CFX technical report
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Rogerio Fernandes Brito
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http://www.sciencedirect.com/science...5b94d9a7150e5b

doi:10.1016/j.firesaf.2006.08.011 Copyright © 2006 Elsevier Ltd All rights reserved. Numerical simulation of backdraft phenomena

Andrej Horvata, and Yehuda Sinai, a,

aANSYS Europe Ltd., West Central 127, Milton Park, OX14 4SA Abingdon, Oxfordshire, UK

Received 21 March 2005; revised 17 August 2006; accepted 30 August 2006. Available online 4 December 2006.

References and further reading may be available for this article. To view references and further reading you must purchase this article.

Abstract This paper reports preliminary computational fluid dynamics (CFD) simulations of backdraft observed in an experimental rig at Lund University. The analysis was performed with the CFX software using the Detached Eddy Simulation (DES) turbulence model, a hybrid of Large Eddy Simulation (LES) and RANS, in combination with the EDM combustion model. The DES model uses a RANS formulation in wall proximity to avoid computationally expensive grid resolution that is necessary for realistic LES predictions in wall layers.

The preliminary results are qualitatively promising. The simulations began at the instant at which the door opens. A stream of fresh and cold air enters the enclosure as a gravity current. In the rig, ignition was triggered by flammable conditions existing at a wire, which was constantly heated. In the CFD model the ignition time is computed automatically when flammability conditions are reached inside the enclosure, at the wire, as part of the analysis. Subsequently, the fire front is formed. The deflagration expels fuel-rich mixture into environment, and the combustion continues outside the enclosure as a typical 'secondary' event. Considering that backdraft is a very complex phenomenon, the outcome is considered by the authors to be encouraging.

Keywords: Backdraft; Fire; Gravity current; CFD; Deflagration; Ignition

or in:

http://linkinghub.elsevier.com/retri...79711206001147

http://www.informaworld.com/index/788588837.pdf

http://epubl.ltu.se/1402-1544/2006/4...DT-0641-SE.pdf

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Old   July 30, 2008, 15:23
Default Re: How can I get the CFX technical report
  #3
Rogerio Fernandes Brito
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File 0_Numerical_simulation_of_backdraft_phenomena.pdf (508 KB) uploaded!

Thank you for your upload. Remember that only those people are able to access your files knowing the exact link. RapidShare is a file hoster and does not announce your files anywhere.

Your Download-Link #1:

http://rapidshare.de/files/40121485/...omena.pdf.html

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Old   July 31, 2008, 08:37
Default Re: How can I get the CFX technical report
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Lan
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Thank very much, Rogerio .
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Old   July 31, 2008, 09:30
Default Re: How can I get the CFX technical report
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Rogerio Fernandes Brito
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You´re welcome!
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