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5篇 您的检索式:作者名="Semplice"
    题名 作者 年代 出处 被引量
1A dynamic model of the fate of organic chemicals in a multilayered air/soil system:Development and illustrative application显示文摘Ghirardello D Morselli M Semplice M 0,,23:1
2Guidance on the selection of efficient computational methods for multimedia fate models显示文摘Semplice M Ghirardello D Morselli M 2012Environ Sci Technol2012,46,3:1
3A dynamic model of the fate of organic chemicals in a multilayered air/soil system:Development and illustrative application显示文摘Ghirardello D Morselli M Semplice M 0,,23:1
4Numerical Entropy andAdaptivity for FiniteVolume Schemes显示文摘We propose an a-posteriori error/smoothness indicator for standard semidiscrete finite volume schemes for systems of conservation laws,based on the numerical production of entropy.This idea extends previous work by the first author limited to central finite volume schemes on staggered grids.We prove that the indicator converges to zero with the same rate of the error of the underlying numerical scheme on smooth flows under grid refinement.We construct and test an adaptive scheme for systems of equations in which the mesh is driven by the entropy indicator.The adaptive scheme uses a single nonuniform grid with a variable timestep.We show how to implement a second order scheme on such a space-time non uniform grid,preserving accuracy and conservation properties.We also give an example of a p-adaptive strategy.Gabriella Puppo Matteo Semplice 2011Communications in Computational Physics2011,10,10:0
5A Family of Relaxation Schemes for Nonlinear Convection Diffusion Problems显示文摘In this work we present a family of relaxation schemes for nonlinear convection diffusion problems,which can tackle also the cases of degenerate diffusion and of convection dominated regimes.The schemes proposed can achieve any order of accuracy,give non-oscillatory solutions even in the presence of singularities and their structure depends only weakly on the particular PDE being integrated.One and two dimensional results are shown,and a nonlinear stability estimate is given.Fausto Cavalli Giovanni Naldi Gabriella Puppo Matteo Semplice 2009Communications in Computational Physics2009,5,2:0
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