10th Iranian Aerospace Society Conference , 2011-03-01

Title : ( An LB Study of Flow past Moderately and Widely Spaced Units of Four Cylinders: Force Coefficients Calculation and Flow Structure Simulation )

Authors: Javad Abolfazli Esfahani , AhmadReza Vaselbehagh ,

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This research develops the Lattice Boltzmann (LB) method in the pragmatic field of fluid-structure interactions. The LB method is employed in simulating the incompressible flow past a square unit of four equal diameter circular cylinders. The simulation is conducted at Reynolds number of 200 and the spacing ratio (L/D) increases from 3 to 5 in 0.5 steps to cover moderately and widely spaced cases. Accordingly, the effects of spacing ratio on the shear layer behavior and vortex shedding pattern are studied in detail. Furthermore, its effects on the main force characteristics i.e. lift and drag coefficients and also Strouhal number are fully investigated. The observations and results obtained by LB method employed in the current work are in strict accordance with other existent experimental and numerical data in the literature.

Keywords

, Vortex shedding, Shear layer behavior, Low Reynolds flow, Force
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@inproceedings{paperid:1021710,
author = {Abolfazli Esfahani, Javad and Vaselbehagh, AhmadReza},
title = {An LB Study of Flow past Moderately and Widely Spaced Units of Four Cylinders: Force Coefficients Calculation and Flow Structure Simulation},
booktitle = {10th Iranian Aerospace Society Conference},
year = {2011},
location = {IRAN},
keywords = {Vortex shedding; Shear layer behavior; Low Reynolds flow; Force coefficients},
}

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%0 Conference Proceedings
%T An LB Study of Flow past Moderately and Widely Spaced Units of Four Cylinders: Force Coefficients Calculation and Flow Structure Simulation
%A Abolfazli Esfahani, Javad
%A Vaselbehagh, AhmadReza
%J 10th Iranian Aerospace Society Conference
%D 2011

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