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1973•Journal of the Engineering Mechanics DivisionRequires access

Effect of Blockage on Steady Force Coefficients

Amruthur S. Ramamurthy, C.P. Ng

Open publisher page 37 citations

Abstract

The variation of the steady force coefficients for a two-dimensional circular cylinder and a triangular prism due to wall interference is reported here for a large range of blockage ratios. The effect of wall constraint on the Strouhal frequency is also examined for a limited range of blockage ratios. A simple choice of the scales of velocity and lengths constituting the force coefficients and the Strouhal number for constrained flows is proposed to include blockage effects.

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What this paper is about

The variation of the steady force coefficients for a two-dimensional circular cylinder and a triangular prism due to wall interference is reported here for a large range of blockage ratios. The effect of wall constraint on the Strouhal frequency is also examined for a limited range of blockage ratios. A simple choice of the scales of velocity and lengths constituting the force coefficients and the Strouhal number for constrained flows is proposed to include blockage effects.

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Available abstract

The variation of the steady force coefficients for a two-dimensional circular cylinder and a triangular prism due to wall interference is reported here for a large range of blockage ratios. The effect of wall constraint on the Strouhal frequency is also examined for a limited range of blockage ratios. A simple choice of the scales of velocity and lengths constituting the force coefficients and the Strouhal number for constrained flows is proposed to include blockage effects.

Key concepts: Strouhal number, Mechanics, Range (aeronautics), Physics, Interference (communication), Prism, Mathematics, Classical mechanics

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