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Steady Mixed Convection in Power-Law Fluids from a Heated Triangular Cylinder

IR@CMERI: CSIR- Central Mechanical Engineering Research Institute (CMERI), Durgapur


Field	Value

Title	Steady Mixed Convection in Power-Law Fluids from a Heated Triangular Cylinder

Creator	Gupta, Satish Kumar Ray, Sudipta Chatterjee, Dipankar

Subject	Convective heat and mass transfer

Description	The steady mixed convective transport from a heated triangular cylinder immersed in power-law fluids in an unconfined vertical domain is investigated numerically. Two different configurations of the cylinder are chosen; one when the base of the cylinder is facing the flow and the other when the apex of the triangle is facing the flow. The simulation is performed for: Reynolds number (1 to 35), Richardson number (0 to 2), power law index (0.4 to 1.8) and Prandtl number, 50. The flow and thermal fields are visualized through the streamlines and isotherm contours at the close proximity of the heated object for various Reynolds numbers, Richardson numbers and power law indices. The distributions of the surface pressure coefficient and local Nusselt number provide further insight of the hydrodynamic and thermal characteristics. Finally, the total drag coefficient and average Nusselt numbers on the surface of the cylinder are computed to explore the overall macroscopic behavior of the involved thermo-hydrodynamics. The flow separation is observed to be more when the apex of the cylinder is facing the flow. The average heat transfer, measured in terms of the Nusselt number, and the total drag on the cylinder are also found higher for that configuration.

Publisher	Taylor & Francis

Date	2018

Type	Article PeerReviewed

Identifier	Gupta, Satish Kumar and Ray, Sudipta and Chatterjee, Dipankar (2018) Steady Mixed Convection in Power-Law Fluids from a Heated Triangular Cylinder. Heat Transfer Engineering , 39 (11). pp. 957-976.

Relation	http://cmeri.csircentral.net/580/