Results 11 to 20 of about 593,105 (299)

On the Nonlinearity of Modern Shock-Capturing Schemes [PDF]

open access: yes, 1987
In this paper we review the development of shock-capturing methods, paying special attention to the increasing nonlinearity in the design of the numerical schemes. We study the nature of the nonlinearity and examine its relation to upwind differencing. This nonlinearity is essential in the sense that analysis by local linearization is not justified and
Ami Harten, Harten, A.
openaire   +3 more sources

Shock-capturing with discontinuous garlekin methods [PDF]

open access: yes, 2009
A shock capturing strategy for high order Discontinuous Galerkin methods for conservation laws is proposed. We present a method in the one-dimensional case based on the introduction of artificial viscosity into the original equations. With this approach the shock is capture with sharp resolution maintaining high-order accuracy.
Huerta, Antonio, Casoni Rero, Eva
core   +4 more sources

Assessment of a high-order shock-capturing central-difference scheme for hypersonic turbulent flow simulations [PDF]

open access: yes, 2021
High-speed turbulent flows are encountered in most space-related applications (including exploration, tourism and defense fields) and represent a subject of growing interest in the last decades.
CINELLA, Paola   +3 more
core   +1 more source

A high order compact scheme for hypersonic aerothermodynamics [PDF]

open access: yes, 2010
A novel high order compact scheme for solving the compressible Navier-Stokes equations has been developed. The scheme is an extension of a method originally proposed for solving the Euler equations, and combines several techniques for the solution of ...
Emerson, David   +2 more
core   +3 more sources

A Wave-Targeted Essentially Non-Oscillatory 3D Shock-Capturing Scheme for Breaking Wave Simulation

open access: yesJournal of Marine Science and Engineering, 2022
A new three-dimensional high-order shock-capturing model for the numerical simulation of breaking waves is proposed. The proposed model is based on an integral contravariant form of the Navier–Stokes equations in a time-dependent generalized curvilinear ...
Giovanni Cannata   +3 more
doaj   +1 more source

A non-hydrostatic model for water waves in nearshore region

open access: yesShui kexue jinzhan, 2015
Based on uniform grid,a depth integrated non-hydrostatic model for coastal water flow is presented. The numerical implementation of the model is split into hydrostatic step and non-hydrostatic step.
FANG Kezhao   +3 more
doaj   +1 more source

A Simple and Robust Shock-Capturing Approach for Discontinuous Galerkin Discretizations

open access: yesEnergies, 2019
The discontinuous Galerkin (DG) method has become popular in Computational Fluid Dynamics mainly due to its ability to achieve high-order solution accuracy on arbitrary grids, its high arithmetic intensity (measured as the ratio of the number of floating
Jae Hwan Choi   +2 more
doaj   +1 more source

Improvement of the WENO-NIP Scheme for Hyperbolic Conservation Laws

open access: yesAxioms, 2022
The WENO-NIP scheme was obtained by developing a class of L1-norm smoothness indicators based on Newton interpolation polynomial. It recovers the optimal convergence order in smooth regions regardless of critical points and achieves better resolution ...
Ruo Li, Wei Zhong
doaj   +1 more source

The Role of Mesh Generation, Adaptation, and Refinement on the Computation of Flows Featuring Strong Shocks

open access: yesModelling and Simulation in Engineering, 2012
Within a continuum framework, flows featuring shock waves can be modelled by means of either shock capturing or shock fitting. Shock-capturing codes are algorithmically simple, but are plagued by a number of numerical troubles, particularly evident when ...
Aldo Bonfiglioli   +2 more
doaj   +1 more source

High-Order Hybrid WCNS-CPR Scheme for Shock Capturing of Conservation Laws

open access: yesInternational Journal of Aerospace Engineering, 2020
By introducing hybrid technique into high-order CPR (correction procedure via reconstruction) scheme, a novel hybrid WCNS-CPR scheme is developed for efficient supersonic simulations.
Jia Guo   +4 more
doaj   +1 more source

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