What is it about?

This work studies experimentally the thermal effects on the wake of two heated cylinders of equal diameter in tandem array placed horizontally and confined inside a vertical closed-loop downward rectangular channel. The interference effects on the complex flow features are presented in the form of mean and instantaneous contours of velocity and vorticity.

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Why is it important?

The results indicate that the vortex shedding patterns exhibit a strong dependence on buoyancy strength. We also show the modulation effect of the channel walls on the three-dimensional flow under varying thermal buoyancy. The results reported herein demonstrate how the flow structure, wake behavior and vortex shedding pattern are entirely different from that behind a single circular cyinder under wall confinement and thermal effects.

Perspectives

I was pleased to be able to reproduce experimentally previous results from numerical solutions.

Dr. Lorenzo Martínez-Suástegui
Instituto Politecnico Nacional

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This page is a summary of: Experimental study on laminar flow over two confined isothermal cylinders in tandem during mixed convection, International Journal of Thermal Sciences, May 2017, Elsevier, DOI: 10.1016/j.ijthermalsci.2017.01.015.
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