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Research Article

Numerical Simulation of Low Reynolds Number Flows in In-Line Tube Banks

E. Shirani and H. Nasibi
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A body fitted curvilinear coordinate system is incorporated with Beam-Warming numerical method to solve full Navier-Stokes and energy equations for laminar flow of air around three isothermal horizontal cylinders in an in-line tube bank. The effects of longitudinal and transverse pitches and Reynolds number ranged from 25 to 2500 on the flow parameters such as streamlines, surface pressure, total drag, pressure drag and friction drag coefficients and hydraulic drag around tube banks are considered. The change of longitudinal and transverse pitches and the Reynolds number affects the flow parameters. As longitudinal pitch is decreased, the wakes behind the cylinders are spread between two rows. There is an optimum value for longitudinal pitch, at which, the hydraulic drag is minimum. The drag coefficient as Reynolds number increased or as the transverse pitch increased.

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  How to cite this article:

E. Shirani and H. Nasibi , 2001. Numerical Simulation of Low Reynolds Number Flows in In-Line Tube Banks. Journal of Applied Sciences, 1: 275-282.

DOI: 10.3923/jas.2001.275.282


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