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Moroccan Journal of Pure and Applied Analysis, 2022 We present an entropy stable Discontinuous Galerkin (DG) finite element method to approximate systems of 2-dimensional symmetrizable conservation laws on unstructured grids. The scheme is constructed using a combination of entropy conservative fluxes and
Madrane Aziz, Benkhaldoun Fayssal
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A fourth-order entropy condition scheme for systems of hyperbolic conservation laws
Engineering Applications of Computational Fluid Mechanics, 2021 Based on the analysis of the entropy condition scheme formulation, the accuracy order comes from initial value interpolation and flux reconstruction.
Tong Zhou, Haitao Dong
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Dynamic responses of reinforced concrete beams under double-end-initiated close-in explosion
Defence Technology, 2018 The reinforced concrete (RC) structural component might suffer a great damage under close-in explosion. Different from distant explosions, blast loads generated by the close-in explosion are non-uniformly distributed on the structural component and may ...
Bin Rao +5 more
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A thermally robust gradient-based finite-difference scheme for multicomponent compressible reacting flows [PDF]
EPJ Web of ConferencesWe develop a high-order gradient-based reconstruction method for multispecies, chemically reacting compressible flows with temperaturedependent thermodynamics.
El Oteby Samir, Boukharfane Radouan
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AcousticsReflection silencers are installed in the exhaust system of stationary combustion engines to attenuate low-frequency noise by means of destructive interference.
Kevin Johannes Moezer +2 more
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High-order weno-θ6 finite volume method for two-dimensional compressible euler equations
Tạp chí Khoa học và Công nghệA high-order finite-volume WENO-θ6 method is proposed for two-dimensional compressible Euler equations. The method employs θ-adaptive weighting to combine fifth-order upwind and sixth-order central reconstructions based on local smoothness indicators ...
Nguyen Minh Hieu Pham, Thien Binh Nguyen
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A high-resolution WENO scheme with multiple global smoothness indicators in compressible fluids
Results in Applied MathematicsA novel fifth-order WENO-Z-type scheme with multiple global smoothness indicators (MGSI-WENO-Z) is proposed for compressible multi-scale flows. Unlike conventional WENO-Z schemes with a single global smoothness indicator, distinct GSIs are assigned to ...
Shujiang Tang, Yuelong Tang
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Numerical dissipation control of a hybrid large-particle method in vortex instability problems
Научно-технический вестник информационных технологий, механики и оптикиCurrent trends in the development of numerical schemes are associated with a decrease in dissipative and dispersion errors, as well as an improvement in the grid convergence of the solution.
D. V. Sadin
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Accuracy of MUSCL and WENO Schemes on Non-Uniform Structured Meshes
气体物理The difference schemes constructed on the basis of one-dimensional uniform grids must be extended to non-uniform or curvilinear grids in practical applications, and the coordinate transformation process introduces geometry-induced errors. The accuracy of
Jun LIU, Yu LIU
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Applied SciencesIn numerical simulations, achieving high accuracy without significantly increasing computational cost is often a challenge. To address this issue, this paper proposes an improved finite volume Weighted Essentially Non-Oscillatory (WENO) scheme for ...
Hao Wang +4 more
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