Nonlinear viscous wavefields generated by a piston-type wavemaker

Ching Jer Huang, En Cheng Zhang, Jaw Fang Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A numerical scheme is developed to solve the unsteady, two-dimensional Navier-Stokes equations using the exact free surface boundary conditions for determining viscous wavefields generated by a piston-type wavemaker. The SUMMAC method for treating the free surface has been further modified to extrapolate the velocity components at free surface more accurately. For a piston wavemaker, both small- and large-amplitude waves can be simulated by the present numerical scheme. The process of the wave formation is shown in detail. For verifying the accuracy of the numerical results, the numerical wave profiles are compared with both analytical and experimental results. For small wave steepness, our numerical results coincide with theoretical and experimental results. For large wave steepness, the numerical wave heights are a little lower than the experimental ones. In the worst case, the deviation is about 6%.

Original languageEnglish
Title of host publication5th International Offshore and Polar Engineering Conference, ISOPE 1995
PublisherInternational Society of Offshore and Polar Engineers
Pages34-41
Number of pages8
ISBN (Print)1880653168
Publication statusPublished - 1995 Jan 1
Event5th International Offshore and Polar Engineering Conference, ISOPE 1995 - The Hague, Netherlands
Duration: 1995 Jun 111995 Jun 16

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
Volume1995-June
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Other

Other5th International Offshore and Polar Engineering Conference, ISOPE 1995
CountryNetherlands
CityThe Hague
Period95-06-1195-06-16

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

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