ライブラリ登録: Guest
Begell Digital Portal Begellデジタルライブラリー 電子書籍 ジャーナル 参考文献と会報 リサーチ集
Heat Transfer Research
インパクトファクター: 0.404 5年インパクトファクター: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN 印刷: 1064-2285
ISSN オンライン: 2162-6561

巻:
巻 51, 2020 巻 50, 2019 巻 49, 2018 巻 48, 2017 巻 47, 2016 巻 46, 2015 巻 45, 2014 巻 44, 2013 巻 43, 2012 巻 42, 2011 巻 41, 2010 巻 40, 2009 巻 39, 2008 巻 38, 2007 巻 37, 2006 巻 36, 2005 巻 35, 2004 巻 34, 2003 巻 33, 2002 巻 32, 2001 巻 31, 2000 巻 30, 1999 巻 29, 1998 巻 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2016011658
pages 319-345

NUMERICAL INVESTIGATION OF FLUID FLOW AND HEAT TRANSFER IN A C-SHAPED GEOMETRY OF RECTANGULAR CROSS SECTION

Yahia Lasbet
LDMM, Ziane Achour University, Djelfa, Algeria
Ahcène Loubar
Nuclear Research Center of Birine, Djelfa, Algeria
Khaled Loubar
Ecole des Mines de Nantes, 44307 Nantes Cedex 3, France

要約

Three-dimensional simulations are carried out to investigate heat transfer and fluid flow characteristics of a chaotic geometry using a computational fluid dynamics (CFD) soft ware. Heat transfer and pressure drop are investigated for Reynolds numbers ranging from 50 to 1500. The model geometry is created and meshed using the Gambit soft ware. Preliminary simulations using a laminar flow model are carried out to identify the transition Reynolds number. Fluid flow and heat transfer are simulated and the results were compared using both laminar and turbulent flow models (standard k–ε model). Steady-state solvers are adopted to calculate pressure drop, flow and temperature fields. Model validation is carried out by comparing the simulation results for Nusselt and Poiseuille numbers against data from the literature. The simulations clearly highlighted the contribution of secondary flows (vortices) to the enhancement of heat transfer compared to a straight pipe, as well as the earlier occurrence of a transitional flow regime. The increase in the pressure drop remains the main drawback of the chaotic geometries. This disadvantage is avoidable through an optimization of the geometrical arrangement and an adequate choice of the operating conditions.


Articles with similar content:

NUMERICAL MODELING OF THERMAL TURBULENT WALL FLOWS WITH DIFFERENT CODES
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2012, issue
Najla El Gharbi, Mohammed El Ganaoui, Rafik Absi, Ahmed Benzaoui
NUMERICAL INVESTIGATIONS OF THE CHARACTERISTICS OF HEAT TRANSFER ENHANCEMENT AND FLOW RESISTANCE IN A RECTANGULAR CHANNEL WITH WINGLETS
Heat Transfer Research, Vol.48, 2017, issue 2
Zeqiu Wu, Lianfa Yang, Zhongnan Tao
METHOD OF LINES SOLUTION FOR TRANSIENT TURBULENT FLOW IN A HEATED PIPE
ICHMT DIGITAL LIBRARY ONLINE, Vol.11, 2004, issue
Tanil Tarhan, Ahmet B. Uygur, Nevin Selcuk
Numerical analysis of the vortex breakdown phenomenon in conical-cylindrical cavities
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2012, issue
F. J. Souza, Aristeu da Silveira Neto, R. V. Salvo, D. A. M. Martins
Turbulence control in the Taylor-Couette flow system
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2015, issue
Hamid Oualli, Mohamed Gad-el-Hak, Ahcene Bouabdallah, Mahmoud Mekadem