Boussinesq방정식을 이용한 규칙파의 연파해석
Stem Wave Analysis of Regular Waves using a Boussinesq Equation
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초록
본 연구에서는 Lynett and Liu(2004 a,b)에 의해 유도된 2층 Boussinesq방정식을 이용하여 일정수심상의 규칙파 조건에서 직립벽을 따른 연파를 해석하고, 수리모형실험결과 및 포물형근사식에 의한 해석결과와 비교하였다. 두 가지 수치모형에 의한 해석결과는 수리실험결과와 비교적 잘 일치하였으나, 입사각이 증가할수록 Boussinesq모형이 포물형모형보다 우수한 결과를 주는 것으로 나타났다. 특히 파랑의 비선형성에 의한 고차 조화성분의 발생은 Boussinesq모형에서만 관찰되었다.
Abstract
Numerical analyses of stem waves, the interaction between incident and reflected waves of obliquely incident regular waves along a vertical wall in a constant water depth, are presented. For the numerical model of the analysis, the two-layer Boussinesq equations developed by Lynett and Liu(2004 a,b) are employed. Numerical results are compared with both laboratory measurements and those obtained using parabolic approximation model. The overall comparisons between the results from the two numerical models and the experiments are good. However, the two-layer Boussinesq model is more accurate than the parabolic approximation model as the angle of incident waves increases. In particular, the higher harmonic generation due to the wave nonlinearity is captured only in the Boussinesq model.
참고문헌 (17)
- "직립벽을 따른 연파의 수리 및 수치실험", 26(4B), pp.405~412 (2006)
- "Travelling secondary wave in channels Ministry of Transport", pp.32~38 (1967)
- "Numerical simulations of nonlinear short waves using the multi-layer model", 131(3), pp.231~243 (2005)
- "FUNWAVE 1.0, Fully nonlinear Boussinesq wave model. Documentation and user's manual", (98-06) (1998), Center for Applied Coastal Research, University of Delaware
- "Dispersion effects on longshore currents in surf zones", 123(5), pp.240~248 (1997)
- "Internal generation of waves for extended Boussinesq equations", 42, pp.155~162 (2001)
- "Model equations for wave propagation from deep to shallow water Advances in Coastal Engineering", pp.125~157 (1994)
- "A multi-layer approach to modeling generation, propagation, and interaction of water waves" (2002)
- "A two-layer approach to water wave modeling", 460, pp.2637~2669 (2004)
- "Linear analysis of the multi-layer model", 51(6), pp.439~454 (2004)
- "Modeling wave runup with depth integrated equations", 46(2), pp.89~107 (2002)
- "Harmonic generation in shallow water waves Waves on Beaches edited by Meyer"
- "A time-dependent numerical code for extended Boussinesq equations", 120, pp.251~261 (1995)
- "Generation of waves in Boussinesq models using a source function", 36, pp.271~299 (1999)
- "A fully nonlinear Boussinesq model for surface waves. Part. 1. Highly nonlinear unsteady waves", 294, pp.71~92 (1995)
- "Bed shear stress coefficients for longshore currents over a barred profile", 27, pp.243~262 (1996)
- "Propagation of shallow-water waves over slowly varying depth and currents" (1987), Cornell University