Tsunamis are among the most destructive natural hazards and can cause massive damage to the coast... more Tsunamis are among the most destructive natural hazards and can cause massive damage to the coastal communities. This paper presents a first numerical study on the tsunami-like solitary wave impinging and overtopping based on the mesh-free Consistent Particle Method (CPM). The distinct feature of CPM is that it computes the spatial derivatives in a way consistent with the Taylor series expansion and hence achieves good numerical consistency and accuracy. This largely alleviates the spurious pressure fluctuation that is a key issue for the particle method. Validated by the benchmark example of solitary wave impact on a seawall, the CPM model is shown to be able to capture the highly deformed breaking wave and the impact pressure associated with wave impinging and overtopping. Using the numerical model, a parametric study of the effect of seawall cross-sectional geometry on the characteristics of wave overtopping is conducted. It is found that a higher water level can lead to much more intensive overtopping volume and kinetic energy of the overtopping flow, which implies that the coastal areas are at higher risk as the sea level rises. For the purpose of engineering interest, a simple and practical way to estimate the intensity of a real tsunami is presented in terms of the volume and energy of the bulge part of the incident wave.
issued its report in 1990. Dr. Bradford's research has centered on public sector economics and he... more issued its report in 1990. Dr. Bradford's research has centered on public sector economics and he is particularly noted as an authority on taxation. His published papers address a wide range of topics, including investigations of conscription for military service, public utility pricing, criteria for public investment, local government and the economic structure of urban areas, and a variety of income tax issues. Recent work including insurance companies. His 1986 book, Untangling the Income Tax, provides a comprehensive review of income taxes and their alternatives, including consumption taxes. He is editor of Distributional Analysis of Tax Policy. A 1960 graduate of Amherst College, Dr. Bradford holds advanced degrees from Harvard University (M.S., Applied Mathematics, 1962) and Stanford University (Ph.D., Economics, 1966). He was awarded the degree of Doctor of Humane Letters by Amherst College in 1985. ** Leslie B. Samuels is a partner of Cleary, Gottlieb, Steen & Hamilton, based in the New York office. His practice focuses on international taxation, domestic taxation and related issues, including mergers and acquisitions, foreign direct investment in the United States, and new financial products. Mr.
Tsunamis are among the most destructive natural hazards and can cause massive damage to the coast... more Tsunamis are among the most destructive natural hazards and can cause massive damage to the coastal communities. This paper presents a first numerical study on the tsunami-like solitary wave impinging and overtopping based on the mesh-free Consistent Particle Method (CPM). The distinct feature of CPM is that it computes the spatial derivatives in a way consistent with the Taylor series expansion and hence achieves good numerical consistency and accuracy. This largely alleviates the spurious pressure fluctuation that is a key issue for the particle method. Validated by the benchmark example of solitary wave impact on a seawall, the CPM model is shown to be able to capture the highly deformed breaking wave and the impact pressure associated with wave impinging and overtopping. Using the numerical model, a parametric study of the effect of seawall cross-sectional geometry on the characteristics of wave overtopping is conducted. It is found that a higher water level can lead to much more intensive overtopping volume and kinetic energy of the overtopping flow, which implies that the coastal areas are at higher risk as the sea level rises. For the purpose of engineering interest, a simple and practical way to estimate the intensity of a real tsunami is presented in terms of the volume and energy of the bulge part of the incident wave.
issued its report in 1990. Dr. Bradford's research has centered on public sector economics and he... more issued its report in 1990. Dr. Bradford's research has centered on public sector economics and he is particularly noted as an authority on taxation. His published papers address a wide range of topics, including investigations of conscription for military service, public utility pricing, criteria for public investment, local government and the economic structure of urban areas, and a variety of income tax issues. Recent work including insurance companies. His 1986 book, Untangling the Income Tax, provides a comprehensive review of income taxes and their alternatives, including consumption taxes. He is editor of Distributional Analysis of Tax Policy. A 1960 graduate of Amherst College, Dr. Bradford holds advanced degrees from Harvard University (M.S., Applied Mathematics, 1962) and Stanford University (Ph.D., Economics, 1966). He was awarded the degree of Doctor of Humane Letters by Amherst College in 1985. ** Leslie B. Samuels is a partner of Cleary, Gottlieb, Steen & Hamilton, based in the New York office. His practice focuses on international taxation, domestic taxation and related issues, including mergers and acquisitions, foreign direct investment in the United States, and new financial products. Mr.
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