Drag force on a circular cylinder in unseparated laminar high Reynolds number nonlinear random oscillatory flow |
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| Authors: | Dag Myrhaug Hanne T. Wist Lars Erik Holmedal |
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| Affiliation: | Department of Marine Technology, Norwegian University of Science and Technology, Otto Nielsens vei 10, N-7491, Trondheim, Norway |
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| Abstract: | The stochastic properties of the drag force maxima on a circular cylinder subjected to nonlinear random waves are investigated. Unseparated laminar high Reynolds number flow is considered. A simplified approach based on second order Stokes waves is presented, including the sum-frequency effect only. It is demonstrated how a drag force formula valid for regular linear waves can be used to find the cumulative distribution function of individual drag force maxima for nonlinear irregular waves. Here the [Wang, 1968] drag force coefficient is used. |
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| Keywords: | Drag force Unseparated laminar flow Nonlinear random oscillatory flow Second order Stokes waves |
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