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Heat Transfer Research
Импакт фактор: 1.199 5-летний Импакт фактор: 1.155 SJR: 0.267 SNIP: 0.503 CiteScore™: 1.4

ISSN Печать: 1064-2285
ISSN Онлайн: 2162-6561

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

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2011002105
pages 379-402

Two-Dimensional Laminar Fluid Flow and Heat Transfer over a Backward-Facing Step: Effects of Reynolds and Prandtl Numbers

Harsh Chaudhary
Department of Chemical Engineering, Indian Institute of Technology Roorkee, 247 667, India
Amit Kumar Dhiman
Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee - 247 667, India

Краткое описание

In this study, the two-dimensional fluid flow and heat transfer over a backward-facing step have been investigated in the laminar steady flow regime. The numerical simulations are carried out for the following range of conditions: the Reynolds number from 1 to 200 and the Prandtl number from 0.71 to 100. Extensive results have been presented for flow and heat transfer via streamline, vorticity magnitude, pressure and temperature profiles. The present results are in excellent agreement with the reported experimental/numerical results available in the open literature. The wake or recirculation length increases with increasing value of the Reynolds number. The average Nusselt number increases with increasing value of the Reynolds number and/or Prandtl number. Finally, simple expressions of the recirculation length, peak Nusselt number, and average Nusselt number for the bottom (heated) wall are obtained for the range of conditions covered here.


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