Mesh and Time stepping
A fast, robust, and simple implicit method for adaptive time-stepping on adaptive mesh-refinement grids
... adaptive time-stepping on adaptive mesh-refinement grids Commerçon, B ; Debout, V ; Teyssier, R Abstract: ...adaptive mesh-refinement ...tive time-stepping on adaptive ...
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Ensemble time-stepping algorithms for natural convection
... in time was studied in Chapter ...ulation time t ∗ under a mesh ...The mesh condition required that, at the hot wall, the first mesh-line must be within O(Ra −1 ...
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CiteSeerX — Algorithms for multi-adaptive time-stepping
... tetrahedral mesh with mesh size h = 1/64. This mesh consists of 1, 572, 864 tetrahedrons and has N = 274, 625 ...final time T = 100. We also plot the solution and the multi-adaptive ...
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Two local time stepping schemes for parabolic problems
... the time step, compared to the one used with a coarse mesh, in order to get a solution accurate enough in the refined zone and to avoid convergence problems when solving the non linear discretized ...
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Robust and efficient preconditioners for the discontinuous Galerkin time-stepping method
... DG time-stepping method features many advantages that make it an attractive choice for solv- ing parabolic ...the time-step nodes (Akrivis & Makridakis, 2004; Chrysafinos & Walkington, 2006; ...
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Robust and efficient preconditioners for the discontinuous Galerkin time-stepping method
... Table 2 shows that the condition number has little to no dependence on mesh refinement, i.e. variation of M and A. As p increases, the condition number ap- proaches an asymptotic value, as shown by Table 3. The ...
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A local time-stepping Discontinuous Galerkin algorithm for the MHD system
... several time steps of a lower order method, but also because the mesh is unstructured and contains several small cells where the local time-stepping algorithm is activated (in practice, the ...
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Discontinuous Galerkin methods: exploiting superconvergence for improved time-stepping
... Chapter 1: Introduction 22 The pointwise superconvergence proofs include a wide class of equations (elliptic, parabolic and hyperbolic) [ 3 , 4 , 5 , 7 , 8 , 11 ]. Original speculation regarding the superconvergence of ...
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Local time stepping with adaptive time step control for a two-phase fluid system
... the time step is the same all over the grid and therefore must be governed by a CFL condition on the smallest ...local time stepping techniques. By using different time steps in different ...
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Fourier spectral/hp element method: investigation of time-stepping and parallelisation strategies
... a time- independent, but spatially dependent, advective ...the mesh, the time-stepping scheme and the final ...applicable time-step influence accuracy throughout the temporal accumula- ...
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TIME-STEPPING FOR LASER ABLATION
... Plume Expansion and Vapor Flow. Beyond the Knudsen layer, the dense va- por plume ionizes during the laser action. A plasma is formed that absorbs laser energy, thus shielding the target surface from the incoming laser ...
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CiteSeerX — Adaptive Time Stepping in Real-Time Motion Planning
... planning time, but by tolerating and adapting to ...suitable time step on-the-fly by observing whether the planner is able to make progress within the time ...finite time for a large class of ...
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A STRESS TEST FOR THE MIDPOINT TIME-STEPPING METHOD
... m 2 = 1 Table 5.1: Data associated with the test problems. 6. Conservation. As systems evolve over time, there may be certain properties whose values stay fixed. These are known as invariants or conserved ...
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Super-time-stepping acceleration of explicit schemes
... explicit time-stepping algorithm of the form ...explicit time-step t expl in the usual way to satisfy the CFL condition, but instead of executing steps of length t expl , one executes supersteps of ...
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Performance Evaluation of Mesh Protocols in Real Time Mesh Test Bed
... real-time mesh test-bed to compare various mesh protocols and perform a detailed ...wireless mesh network test bed. A preliminary analysis of two mesh protocols ...
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A High-Order, Conservative Integrator with Local Time-Stepping
... global time-stepping (GTS) ...of time step changes are typically more expensive than for a GTS method, so the benefit of fewer derivative evaluations must outweigh this ...
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A time stepping method in analysis of nonlinear structural dynamics
... of time integration technique for problems in nonlinear structural dynamics was ...of time was used in order to approximate the variation of ac- celeration in each time ...previous time step, ...
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A Control Perspective to Adaptive Time Stepping in Reservoir Simulation
... adaptive time- stepping ...adaptive time-stepping ...same time, if the tuning is not performed properly, the controller can become inefficient and lead to instabilities in the reservoir ...
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Motion Editing for Time-Varying Mesh
... Recently, time-varying mesh (TVM), which is composed of a sequence of mesh models, has received considerable interest due to its new and attractive functions such as free viewpoint and ...and ...
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Fully Implicit Time Stepping Can Be Efficient on Parallel Computers
... computational time than the often used linearly implicit Carpenter–Kennedy method for solving the equations of incompressible fluid dynamics for moderate levels of accuracy at the beginning of the flow ...per ...
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