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Proceedings of the 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC-2019)

ISSN: 2688-7231 (Online)

Computational Study of Interaction of Turbulent Offset Jet and Wall Jet Flow Using Low-Reynolds Number Model

Sushil Kumar Rathore
Department of Mechanical engineering National institute of Technology Patna, Patna-800005

Sanjay Singh Rathore
Department of Mechanical Engineering, NIT Patna, 800005, India

Sumanta Chaudhuri
Department of Mechanical Engineering KIIT University , Bhubaneswar, Odisha-751024, India

DOI: 10.1615/IHMTC-2019.1730
pages 1031-1036

Abstract

The present study reports the numerical simulation of interaction of turbulent wall jet and offset jet using low-Reynolds number turbulence model of Yang and Shih [1]. The near wall region flow is captured with the help of very fine grids using low-Reynolds number modelling approach. The Reynolds number of the flow at the inlet is 20000 and the offset ratio is 9.5. The combined flow of a wall jet and an offset jet is called dual jet. The finite volume method is used to solve the Reynolds averaged differential governing equations on a staggered grid arrangement. The SIMPLEC [2] algorithm is employed for coupling of mean velocity and pressure. The present study intends to report the near-wall velocity profile including the viscous sublayer region, velocity vector plots, velocity profile in u+-y+ coordinates, velocity similarity profile, distribution of Reynolds shear stress and turbulent kinetic energy in the domain, etc. in detail.

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