Numerical simulation of flow past a square cylinder

Author

Bano, Tayyaba ; Sheikh, Nadeem Ahmed ; Manzoor, S. ; Khushnood, Shahab

Author_Institution

Dept. of Mech. & Aeronaut. Eng., Univ. of Eng. & Technol., Taxila, Pakistan

fYear

2012

Firstpage

265

Lastpage

269

Abstract

A study of the behavior of a square cylinder subjected to an upstream uniform air flow is presented. The present investigation uses commercial CFD software FLUENT 6.2.16 to simulate time-resolved flow field using constitutive relationships suitable for laminar flows. Variation of flow induced lift force coefficient is used to estimate shedding frequency and resultant mean structural vibration for the Reynolds number range of 2000-8000. Simulation results in terms of limit cycle oscillation amplitude are compared with pre-existing experimental data.

Keywords

aerodynamics; computational fluid dynamics; external flows; flow simulation; fluid oscillations; laminar flow; numerical analysis; vibrations; vortices; CFD software FLUENT 6.2.16; Reynolds number; constitutive relationships; flow induced lift force coefficient variation; laminar flows; limit cycle oscillation amplitude; numerical simulation; resultant mean structural vibration; shedding frequency; square cylinder behavior; time-resolved flow field; upstream uniform air flow; Oscillators; CFD; Reynolds Number; Square cylinder; Strouhal Number; Unsteady flow; Vortex shedding;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Sciences and Technology (IBCAST), 2012 9th International Bhurban Conference on

Conference_Location

Islamabad

Print_ISBN

978-1-4577-1928-8

Type

conf

DOI

10.1109/IBCAST.2012.6177563

Filename

6177563