A Coupled Finite Difference and Weighted Least Squares Simulation of Violent Breaking Wave Impact

التفاصيل البيبلوغرافية
العنوان: A Coupled Finite Difference and Weighted Least Squares Simulation of Violent Breaking Wave Impact
المؤلفون: Allan Peter Engsig Karup, Ole Lindberg, Harry B. Bingham
المصدر: Volume 4: Offshore Geotechnics; Ronald W. Yeung Honoring Symposium on Offshore and Ship Hydrodynamics.
بيانات النشر: American Society of Mechanical Engineers, 2012.
سنة النشر: 2012
مصطلحات موضوعية: Physics::Fluid Dynamics, Classical mechanics, Inviscid flow, Free surface, Mathematical analysis, Finite difference, Initial value problem, Breaking wave, Potential flow, Boundary value problem, Poisson's equation, Mathematics
الوصف: Two model for simulation of free surface flow are presented. The first model is a finite difference based potential flow model with non-linear kinematic and dynamic free surface boundary conditions. The second model is a weighted least squares based incompressible and inviscid flow model. A special feature of this model is a generalized finite point set method which is applied to the solution of the Poisson equation on an unstructured point distribution. The presented finite point set method is generalized to arbitrary order of approximation. The two models are applied to simulation of steep and overturning wave impacts on a vertical breakwater. Wave groups with five different wave heights are propagated from offshore to the vicinity of the breakwater, where the waves are steep, but still smooth and non-overturning. These waves are used as initial condition for the weighted least squares based incompressible and inviscid model and the wave impacts on the vertical breakwater are simulated in this model. The resulting maximum pressures and forces on the breakwater are relatively high when compared with other studies and this is due to the incompressible nature of the present model.Copyright © 2012 by ASME
DOI: 10.1115/omae2012-83823
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::a9fd2eea464bd91f238f1d05a1aecb32
https://doi.org/10.1115/omae2012-83823
رقم الانضمام: edsair.doi...........a9fd2eea464bd91f238f1d05a1aecb32
قاعدة البيانات: OpenAIRE