A regional spectral nested shallow water equation model

1989 ◽  
Vol 6 (4) ◽  
pp. 393-402 ◽  
Author(s):  
Liao Dongxian
Keyword(s):  
Shallow Water ◽  
Shallow Water Equation ◽  
Equation Model

scholarly journals An improved shallow water equation model for water animation

2017 ◽  
Author(s):  
Mingjing Ai ◽  
Anding Du ◽  
Han Xu ◽  
Jianwei Niu
Keyword(s):  
Shallow Water ◽  
Shallow Water Equation ◽  
Equation Model

A NUMERICAL STUDY OF DAM-BREAK FLOW AND SEDIMENT TRANSPORT FROM A QUAKE LAKE

2011 ◽  
Vol 05 (05) ◽  
pp. 401-428 ◽  
Author(s):  
PENGZHI LIN ◽  
YINNA WU ◽  
JUNLI BAI ◽  
QUANHONG LIN
Keyword(s):  
Sediment Transport ◽  
Shallow Water ◽  
High Speed ◽  
Numerical Study ◽  
Shallow Water Equation ◽  
Equation Model ◽  
Dam Break ◽  
Bed Morphology ◽  
Dam Break Flow ◽  
Quake Lake

Dam-break flows are simulated numerically by a two-dimensional shallow-water-equation model that combines a hydrodynamic module and a sediment transport module. The model is verified by available analytical solutions and experimental data. It is demonstrated that the model is a reliable tool for the simulation of various transient shallow water flows and the associated sediment transport and bed morphology on complex topography. The validated model is then applied to investigate the potential dam-break flows from Tangjiashan Quake Lake resulting from Wenchuan Earthquake in 2008. The dam-break flow evolution is simulated by using the model in order to provide the flooding patterns (e.g., arrival time and flood height) downstream. Furthermore, the sediment transport and bed morphology simulation is performed locally to study the bed variation under the high-speed dam-break flow.

scholarly journals INTER-COUPLED TSUNAMI MODELLING THROUGH AN ABSORBING-GENERATING BOUNDARY

2020 ◽  
pp. 38
Author(s):  
Sangyoung Son ◽  
Patrick Lynett
Keyword(s):  
Shallow Water ◽  
Shallow Water Equation ◽  
Boussinesq Equations ◽  
Equation Model ◽  
Water Model ◽  
Navier Stokes ◽  
Characteristic Form ◽  
Computationally Efficient ◽  
Boussinesq Model ◽  
Tsunami Modelling

For many practical and theoretical purposes, various types of tsunami wave models have been developed and utilized so far. Some distinction among them can be drawn based on governing equations used by the model. Shallow water equations and Boussinesq equations are probably most typical ones among others since those are computationally efficient and relatively accurate compared to 3D Navier-Stokes models. From this idea, some coupling effort between Boussinesq model and shallow water equation model have been made (e.g., Son et al. (2011)). In the present study, we couple two different types of tsunami models, i.e., nondispersive shallow water model of characteristic form(MOST ver.4) and dispersive Boussinesq model of non-characteristic form(Son and Lynett (2014)) in an attempt to improve modelling accuracy and efficiency.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/cTXybDEnfsQ

scholarly journals Shallow-Water-Equation Model for Simulation of Earthquake-Induced Water Waves

2017 ◽  
Vol 2017 ◽  
pp. 1-11
Author(s):  
Hongzhou Ai ◽  
Lingkan Yao ◽  
Haixin Zhao ◽  
Yiliang Zhou
Keyword(s):  
Finite Difference Method ◽  
Shallow Water ◽  
Water Waves ◽  
Seismic Waves ◽  
Empirical Equation ◽  
Shallow Water Equation ◽  
Equation Model ◽  
Proposed Model ◽  
Maximum Water ◽  
Water Elevation

A shallow-water equation (SWE) is used to simulate earthquake-induced water waves in this study. A finite-difference method is used to calculate the SWE. The model is verified against the models of Sato and of Demirel and Aydin with three kinds of seismic waves, and the numerical results of earthquake-induced water waves calculated using the proposed model are reasonable. It is also demonstrated that the proposed model is reliable. Finally, an empirical equation for the maximum water elevation of earthquake-induced water waves is developed based on the results obtained using the model, which is an improvement on former models.

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