Refinement on non-hydrostatic shallow granular flow model in a global Cartesian coordinate system
نویسندگان
چکیده
منابع مشابه
Exploring the Effects of a High-order Vertical Coordinate in a Non-hydrostatic Global Model
As atmospheric models are pushed towards non-hydrostatic resolutions, there is a growing need for new numerical discretizations that are accurate, robust and effective at these scales. In this paper we describe a new arbitrary-order staggered nodal finite-element method (SNFEM) vertical discretization motivated by flux reconstruction methods. The SNFEM formulation generalizes traditional second...
متن کاملA Non-Hydrostatic Shallow Water Model on Triangular Meshes in Sam(oa) Guided Research Project
For the simulation of tsunamis, the hydrostatic shallow water equations have established as a sound mathematical basis. However, due to the hydrostatic assumption, not all relevant physical effects—especially in coastal areas—can be modelled accurately. In this paper, we therefore show how to extend the PDE-framemwork sam(oa)2 towards modified non-hydrostatic shallow water equations. We use the...
متن کاملA parallel non-hydrostatic shallow water model on adaptive triangular meshes in $sam(oa)$^2
Even with current extreme scale systems, the accurate simulation of tsunamis continues to be a challenging problem. One commonly used model for this task are the hydrostatic shallow water equations which, however, are not able to represent all relevant physical effects of tsunamis. In this paper, we therefore show how to solve the non-hydrostatic shallow water equations in parallel within the p...
متن کاملOn a model of granular flow
References: [1] Wen Shen, On the Shape of Avalanches, J. Math. Anal. Appl., 339(2008), 828-838. [2] Debora Amadori and Wen Shen, Global Existence of large BV solutions for a Model of Granular Flow, To appear in Communications in Partial Differential Equations. [3] Debora Amadori and Wen Shen, The Slow Erosion Limit for a Model of Granular Flow, preprint 2008. Available online: www.math.psu.edu/...
متن کاملFlow Optimization and Global Refinement
We present a novel spatiotemporal saliency detection method to estimate salient regions in videos based on the gradient flow field and energy optimization. The proposed gradient flow field incorporates two distinctive features: 1) intra-frame boundary information and 2) inter-frame motion information together for indicating the salient regions. Based on the effective utilization of both intra-f...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Computational Geosciences
سال: 2017
ISSN: 1420-0597,1573-1499
DOI: 10.1007/s10596-017-9672-x