Wake Modifications in Confined Flows Due to the Presence of a Downstream Cylinder in Staggered Arrangement | Zendy

Ahmad Hussein Abdul Hamid | Zendy; Mohd H. Jamaludin | Zendy; Mohd H. M. Noh | Zendy; Mohd Azan Mohammed Sapardi | Zendy

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Wake Modifications in Confined Flows Due to the Presence of a Downstream Cylinder in Staggered Arrangement

Author(s) -

Ahmad Hussein Abdul Hamid,

Mohd H. Jamaludin,

Mohd H. M. Noh,

Mohd Azan Mohammed Sapardi

Publication year - 2018

Publication title -

international journal of engineering and technology

Language(s) - English

Resource type - Journals

ISSN - 2227-524X

DOI - 10.14419/ijet.v7i4.27.22500

Subject(s) - strouhal number , wake , reynolds number , lift (data mining) , laminar flow , lift coefficient , cylinder , mechanics , physics , geometry , turbulence , mathematics , computer science , data mining

In the present study, confined flows around two square cylinders in staggered arrangement were numerically investigated. Cross-flow and streamwise center-to-center spacings of one- and three-cylinder diameters, respectively, were considered. Simulations were carried out at Reynolds numbers Re = 50,100,150 and 180, where the resulting wakes are laminar and periodic. Results indicate that the presence of the downstream cylinder tends to reduce the Strouhal number, amplitude and the time-averaged lift coefficient of the upstream cylinder relative to the single cylinder cases. Furthermore, the time variations of upstream cylinder’s lift coefficient behave similar to that of a single cylinder.

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