Transient study of buoyancy-assisted mixed convection in laminar plane wall jet flow |
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Authors: | K. Kumar Raja Manab Kumar Das P. Rajesh Kanna |
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Affiliation: | 1. Department of Mechanical Engineering, Indian Institute of Technology Guwahati, North Guwahati-781039, India;2. Department of Mechanical Engineering, National Taiwan University of Science and Technology Taipei, Taiwan |
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Abstract: | A numerical investigation of two-dimensional transient buoyancy-assisted laminar plane wall jet flow has been conducted. The governing equations in the stream function-vorticity formulation have been solved by alternating direction implicit (ADI) method. The parameters used are Grashof number 104 − 107, Prandtl number 0.01, 0.71, 7.1, 10.0 and 15.0 with a constant Reynolds number 400. The plate is considered at a higher temperature and the fluid is assumed to be initially at a uniform cold temperature. The streamline, u-velocity and the isotherm contours are presented at different time levels. The time required for the average Nusselt number to attain a steady-state value decreases with increase in Grashof number. |
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Keywords: | Transient study Plane wall jet Mixed convection Numerical simulation |
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