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Computational Thermal Sciences: An International Journal
ESCI SJR: 0.249 SNIP: 0.434 CiteScore™: 1.4

ISSN Imprimer: 1940-2503
ISSN En ligne: 1940-2554

Computational Thermal Sciences: An International Journal

DOI: 10.1615/ComputThermalScien.2016017788
pages 445-456

COMPUTATIONAL STUDY OF NATURAL CONVECTION THERMAL RADIATION HEAT TRANSFER IN TIGHTLY COILED CURVED PIPE FOR SMALL RANGE OF PECLET NUMBER

Muhammad Ashraf
Department of Mathematics, Faculty of Science, University of Sargodha, Sargodha, 40100, Pakistan
R. Yasmeen
Department of Mathematics, Faculty of Science, University of Sargodha, Pakistan

RÉSUMÉ

Natural convection heat transfer in a tightly coiled curved pipe is studied using the Navier−Stokes equation in cylindrical coordinates system. Transverse and axial components of flow field, temperature field, heat transfer rate, transverse and axial components of skin friction are examined. The proposed model is solved for different ranges of curvature of the pipe δ angle α, radiation parameter Rd, and Peclet number Pe. In this study, the nonlinear differential equations are transformed into convenient form by using a group of transformations and then solved by using the finite difference scheme. Useful correlations are proposed graphically for the different ranges of parameters involved in the present problem.


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