Approximate Stream Function wavemaker theory for highly non-linear waves in wave flumes |
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| Authors: | Haiwen Zhang Hemming A Schffer |
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| Institution: | aDHI water and Environment, Agern Alle 5, DK-2970 Hørsholm, Denmark;bDepartment of Mechanical Engineering, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark |
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| Abstract: | An approximate Stream Function wavemaker theory for highly non-linear regular waves in flumes is presented. This theory is based on an ad hoc unified wave-generation method that combines linear fully dispersive wavemaker theory and wave generation for non-linear shallow water waves. This is done by applying a dispersion correction to the paddle position obtained for non-linear long waves. The method is validated by a number of wave flume experiments while comparing with results of linear wavemaker theory, second-order wavemaker theory and Cnoidal wavemaker theory within its range of application. |
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| Keywords: | Wave generation Wavemaker Linear theory Second-order theory Cnoidal waves Stream Function theory Regular waves |
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