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Numerical Study of Laminar Fluid Flow Around Two Cubes of Arbitrary Configuration Mounted on a Surface

[+] Author Affiliations
Mohammad Eslami, Mohammad Mehdi Tavakol, Ebrahim Goshtasbi Rad

Shiraz University, Shiraz, Iran

Paper No. IMECE2008-68517, pp. 357-366; 10 pages
doi:10.1115/IMECE2008-68517
From:
  • ASME 2008 International Mechanical Engineering Congress and Exposition
  • Volume 10: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B, and C
  • Boston, Massachusetts, USA, October 31–November 6, 2008
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4871-5 | eISBN: 978-0-7918-3840-2
  • Copyright © 2008 by ASME

abstract

The problem of flow field around single or multiple bluff bodies mounted on a surface is of great importance in different fields of engineering. The case of a single surface mounted cube has been studied extensively but unfortunately, little attention has been paid to the flow around two or more rectangular blocks in array. Therefore, A CFD code is developed to calculate three dimensional steady state laminar fluid flow around two cuboids of arbitrary size and configuration mounted on a surface in free stream conditions. The employed numerical scheme is finite volume and SIMPLE algorithm is used to treat pressure and velocity coupling. Results are presented for two cubes of the same size mounted on a surface for various inline and staggered arrangements. Streamlines at different planes are plotted for various combinations of the distance between the two cubes and Reynolds number. Velocity and pressure distributions are also plotted in the wake region behind the cubes. It is shown that presence of the second cube completely changes the flow field and vortical structures in comparison with the case of a single cube. Effects of the both stream-wise and spanwise distances between the two cubes and Reynolds number are also discussed.

Copyright © 2008 by ASME
Topics: Fluid dynamics

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