HYDRODYNAMIC CHARACTERISTICS OF AN OSCILLATING WATER COLUMN DEVICE

The paper considers a wave energy device consisting of a thin vertical surface-piercing barrier next to a vertical wall in finite depth water. Power is extracted due to a normally incident wave forcing the free surface of the fluid between the barrier and the wall to oscillate, in turn pumping the volume of air above the free surface through a uni-directional turbine housed at the opening of the device. Under the assumptions of linear water wave theory, the important hydrodynamic properties are expressed in terms of integral quantities of functions proportional to the fluid velocity under the barrier. These functions each satisfy integral equations, the solutions of which are approximated very accurately and efficiently using a Galerkin method as described by Porter and Evans (1995).

• Supplemental Notes:
  • Applied Ocean Res, v 17 n 3, June 1995, p 155 [10 p, 10 ref, 1 tab, 10 fig]
• Authors:
  • Evans, D V
  • Porter, R
• Publication Date: 1995

Language

• English

Subject/Index Terms

• TRT Terms: Mathematical analysis; Oscillation; Pressure
• Uncontrolled Terms: Pressure distribution; Wave energy
• Old TRIS Terms: Oscillating bodies
• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00728019
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Nov 4 1996 12:00AM