HYDRODYNAMIC FORCES ON SUBMERGED OSCILLATING CYLINDERS AT FORWARD SPEED.

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作者
Wu, G.X. [1 ]
Taylor, R.Eatock [1 ]
机构
[1] Univ Coll London, London, Engl, Univ Coll London, London, Engl
关键词
CYLINDERS - Oscillations - FLOW OF FLUIDS - Potential Flow;
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摘要
The hydrodynamic problem of submerged oscillating cylinders at forward speed is analysed by linearized potential theory. The numerical method used combines a finite-element approximation of the velocity potential in a region surrounding the cylinder with a boundary integral equation representation of the outer region. This method avoids the calculation of the second-order derivatives of the steady potential due to forward speed, which appear in the body surface condition for the unsteady potential due to the oscillation of the cylinder. Numerical results from the present method for test cases of a circular cylinder in an unbounded fluid and below a free surface are in excellent agreement with the analytical solutions.
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页码:149 / 170
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