Wake-Induced Vibrations of Tandem Circular Cylinders of Different Diameters

6 Pages Posted: 12 Feb 2018 Last revised: 16 Feb 2018

See all articles by Pritam Kumar

Pritam Kumar

Indian Institute of Technology, Dhanbad

Kumar Sourav

Indian Institute of Technology, Dhanbad, Students

Deepak Kumar

Indian Institute of Technology, Dhanbad, Students

Subhankar Sen

Indian Institute of Technology, Dhanbad

Date Written: December 21, 2017

Abstract

Wake-induced vibrations (WIV) of two circular cylinders in tandem arrangement of different diameters (larger downstream cylinder) has been analyzed in the present work. The ratio of the diameter of first cylinder to that of the second cylinder (D1/D2) is kept constant at 0.8. The cylinder centers are separated by a distance S (= 5D1). The computations were carried out at Reynolds number (Re) = 100 over a range of reduced speed (U*). The fluid was assumed to be incompressible and flow to be two-dimensional. The flow equations were discretized using stabilized finite-element method and solved iteratively by Generalized Minimal RESidual (GMRES) technique. In the present work, the upstream cylinder is kept stationary while the downstream cylinder is allowed to traverse only across the flow. The observations focus the response, aerodynamic coefficients and flow features.

Keywords: Fluid-Structure Interactions (FSI), Wake-Induced Vibrations (WIV)

Suggested Citation

Kumar, Pritam and Sourav, Kumar and Kumar, Deepak and Sen, Subhankar, Wake-Induced Vibrations of Tandem Circular Cylinders of Different Diameters (December 21, 2017). International Conference on Advances in Thermal Systems, Materials and Design Engineering (ATSMDE2017). Available at SSRN: https://ssrn.com/abstract=3101305 or http://dx.doi.org/10.2139/ssrn.3101305

Pritam Kumar (Contact Author)

Indian Institute of Technology, Dhanbad ( email )

Sardar Patel Nagar
Dhanbad, Jharkhand 826004
India

Kumar Sourav

Indian Institute of Technology, Dhanbad, Students ( email )

Sardar Patel Nagar
Dhanbad, Jharkhand 826004
India

Deepak Kumar

Indian Institute of Technology, Dhanbad, Students ( email )

Sardar Patel Nagar
Dhanbad, Jharkhand 826004
India

Subhankar Sen

Indian Institute of Technology, Dhanbad ( email )

Sardar Patel Nagar
Dhanbad, Jharkhand 826004
India

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