Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《中国海洋工程》 2004-04
Add to Favorite Get Latest Update

Development of A Fully Nonlinear Numerical Wave Tank

CHEN Yong-ping a, b, 1, LI Chi-wai a, and ZHANG Chang-kuan b a Department of Civil and Structural Engineering, The Hongkong Polytechnic University, Hong Kong, China b College of Traffic and Ocean Engineering, Hohai University, Nanjing 210098, China  
A fully nonlinear numerical wave tank based on the solution of the σ-transformed Navier-Stokes equation is developed in this study. The numerical wave is generated from the inflow boundary, where the surface elevation and/or velocity are specified by use of the analytical solution or the laboratory data. The Sommerfeld/Orlanski radiation condition in conjunction with an artificial damping zone is applied to reduce wave reflection from the outflow boundary. The whole numerical solution procedures are split into three steps, i.e., advection, diffusion and propagation, and a new method, the Lagrange-Euler Method, instead of the MAC or VOF method, is introduced to solve the free surface elevation at the new time step. Several typical wave cases, including solitary waves, regular waves and irregular waves, are simulated in the wave tank. The robustness and accuracy of the NWT are verified by the good agreement between the numerical results and the linear or nonlinear analytical solutions. This research will be further developed by study of wave-wave, wave-current, wave-structure or wave-jet interaction in the future.
【Fund】: ThisworkwaspartlysupportedbyagrantfromtheResearchGrantCounciloftheHongKongSpecialAdministrativeRegion (ProjectNo .5 0 4 8/ 0 1E)
【CateGory Index】: O411.1
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved