Monday 29 September 2008

Wseas Transactions

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Transactions: WSEAS TRANSACTIONS ON HEAT AND MASS TRANSFER
Transactions ID Number: 28-315
Full Name: Akram Mazgar
Position: Ph.D. Candidate
Age: ON
Sex: Male
Address: Résidence Errayhane, App N&lsqauo; 2, Skanes Monastir
Country: TUNISIA
Tel: 0021698262923
Tel prefix: 0021673505684
Fax: 0021673435300
E-mail address: mazgarakram@yahoo.fr
Other E-mails:
Title of the Paper: numerical analysis of coupled radiation and laminar forced convection in the entrance region of a circular duct for non grey media entropy generation
Authors as they appear in the Paper: Akram Mazgar, Faycal Ben Nejma, Kamel Charrada
Email addresses of all the authors: mazgarakram@yahoo.fr, Faycal.Bennejma@ipeim.rnu.tn, Kamel.Charrada @ipeim.rnu.tn
Number of paper pages: 12
Abstract: The current study analyses entropy generation induced by coupled forced convection and thermal radiation heat transfer, in circular tubes and for non-grey media. A laminar flow of over heated water vapour in the entrance region of the duct was investigated. A specially developed numerical model, based on the finite-volume technique, is used for the solutions of the governing differential equations. The radiative transfer coefficients are deduced by use of the gRay Tracingh method through S4 directions, in combination with the statistical narrow band correlated-k (SNBCK) model. The local entropy generation distributions as well as the overall entropy generation in the whole flow fields are analyzed. The developing of velocity and temperature fields is also presented in this study.
Keywords: Entropy generation, Coupled convection and radiation, SNBCK model, Non-grey gas.
EXTENSION of the file: .pdf
Special (Invited) Session: Entropy generation through combined non-grey gas radiation and forced convection in cylinders
Organizer of the Session: 595-427
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