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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
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.2015004629
pages 631-641

NUMERICAL ANALYSIS OF LAMINAR NATURAL CONVECTION IN A QUADRANTAL CAVITY WITH A HOT BOTTOM AND COLD CURVED WALLS

Dipak Sen
Mechanical Engineering Department, National Institute of Technology Agartala, Agartala, Tripura, 799055, INDIA
P. K. Bose
Mechanical Engineering Department, National Institute of Technology Agartala, Agartala, Tripura, 799055, INDIA
Rajsekhar Panua
Mechanical Engineering Department, National Institute of Technology Agartala, Agartala, Tripura, 799055, INDIA
Ajoy Kumar Das
Department of Mechanical Engineering, Indian Institute of Technology, Kharagpur-721302; Mechanical Engineering Department, National Institute of Technology Agartala, Agartala, Tripura, 799055, INDIA

Краткое описание

Laminar natural convection in a water-filled quadrantal cavity is studied numerically. The temperature of the bottom wall is higher than that of the curved wall, with the vertical wall being insulated. Numerical solutions are obtained using a commercial CFD package FLUENT and a finite volume method. Two-dimensional steady-state continuity, Navier−Stokes, and energy equations are solved along with the Boussinesq approximation. The effects of the Rayleigh number, Ra, on the Nusselt number, Nu, as well as the fluid flow and heat transfer are investigated for the range of Ra from 104 to 107. Numerical results are presented in terms of stream functions, temperature profiles, and Nusselt numbers. Observations show that both flow and temperature fields are affected by a changing Ra. Finally, a correlation for Nu and Ra is established.


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