NUMERICAL METHODS FOR THE DISPERSION EQUATION OF WAVES RIDING ON A STEADY CURRENT

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概要

• 論文の詳細を見る

• Waves riding on a steady current are categorized into P waves and S waves. The P waves are such kind that exist no matter whether the current is in presence or not. They are usually generated by oscillatory sources or by disturbances to so generated waves. The S waves on the other hand are the water surface response to the interaction of the current with a stationary or a steadily moving obstacle. Numerical methods for evaluating the wavenumber of both P waves and S waves for given values of the Airy number and the Froud number are described in details. Numerical solutions show that the S waves are usually very short waves. They become relatively influential to a phenomenon only when the Froud number is close to a certain value for a known frequency of oscillation of the water. A P wave is stretched by following currents and shrunk by opposing currents. If a preexisting current is strong enough, neither P waves nor S waves opposing the current can exist.

• 長崎大学の論文

著者

• Yu Xiping

  Department Of Civil Engineering Faculty Of Engineering Nagasaki Uniersity

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• FUNCTIONAL PERFORMANCE OF A SUBMERGED AND ESSENTIALLY HORIZONTAL PLATE FOR OFFSHORE WAVE CONTROL : A REVIEW
• SOME IMPORTANT PROPERTIES OF HIGH-ORDER FINITE-DIFFERENCE SCHEMES FOR LAPLACE EQUATION
• NUMERICAL METHODS FOR THE DISPERSION EQUATION OF WAVES RIDING ON A STEADY CURRENT

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