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International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
www.ijsr.net | Open Access | Fully Refereed | Peer Reviewed International Journal

ISSN: 2319-7064



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Analysis of Heat Transfer in Turbulent Channel Using Grooves

Mayank Bhola, Dr. Satyendra Singh

Abstract: This paper presents a numerical investigation of forced convection in a two-dimensional turbulent channel with periodic transverse grooves on the lower channel using CFD in ANSYS FLUENT. The lower wall is subjected to a uniform heat flux of 1000W/m2 while the upper wall is insulated. To investigate effect of grooves on heat transfer and friction factor, computations based on a finite volume method, are carried out by utilizing Realizable k- turbulent model with non-equilibrium wall function. Parametric runs are made for Reynolds numbers ranging from 6000 to 18, 000 with the groove-width to channel-height ratio (B/H) of 0.5 to 1.5 while the groove pitch ratio of 2 and the depth ratio of 0.5 are fixed throughout. It is found that the grooved channel provides a considerable increase in heat transfer of about 146 % to 199 % for different B/H values.

Keywords: Turbulent channel, CFD, ANSYS FLUENT, Grooves, Realizable k-



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