ON THE RADIATION CONDITION OF SECOND-ORDER WAVE DIFFRACTION PROBLEMS

Two- and three-dimensional velocity potentials due to pulsating pressure distributions of infinite extent on the free surface of both finite and infinite depth waters, which usually appear in the second-order diffraction problems, are strictly derived in the present paper. The far-field asymptotic behaviour of the potentials are discussed and the radiation conditions for the second-order diffraction potentials are explicitly given. It is proved in a general sense that the potentials should be composed of forced wave component, free wave component and local disturbance component etc. and the radiation behaviour of the forced wave component should correspond to the far-field asymptotic behaviour of the pressure distribution. Hence, the formulation of radiation conditions for the second-order diffraction problems becomes theoretically clear.

• Supplemental Notes:
  • OMAE 90; Offshore Mechanics and Arctic Engng, 9th Intl Conf; 18-23 Feb 1990, Houston, Tx, USA. Sponsored by ASME et al. Proc., v 1 pt A, p 205 [7 p, 13 ref]
• Authors:
  • Miao, G P
  • Liu, Y Z
• Publication Date: 1990

Language

• English

Subject/Index Terms

• TRT Terms: Diffraction; Pressure
• Uncontrolled Terms: Pressure distribution
• Old TRIS Terms: Wave diffraction; Wave radiation
• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00699082
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM