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2篇 您的检索式:作者名="Giacomo Rispoli"
    题名 作者 年代 出处 被引量
1Hydroconversion of heavy residues in slurry reactors: Developmentsand perspectives显示文摘Giuseppe Bellussi Giacomo Rispoli 2013Journal of Catalysis2013,,:1
2Implicit-Explicit Runge-Kutta Schemes for the Boltzmann-Poisson System for Semiconductors显示文摘In this paper we develop a class of Implicit-Explicit Runge-Kutta schemes for solving the multi-scale semiconductor Boltzmann equation.The relevant scale which characterizes this kind of problems is the diffusive scaling.This means that,in the limit of zero mean free path,the system is governed by a drift-diffusion equation.Our aim is to develop a method which accurately works for the different regimes encountered in general semiconductor simulations:the kinetic,the intermediate and the diffusive one.Moreover,we want to overcome the restrictive time step conditions of standard time integration techniques when applied to the solution of this kind of phenomena without any deterioration in the accuracy.As a result,we obtain high order time and space discretization schemes which do not suffer from the usual parabolic stiffness in the diffusive limit.We show different numerical results which permit to appreciate the performances of the proposed schemes.Giacomo Dimarco Lorenzo Pareschi Vittorio Rispoli 2014Communications in Computational Physics2014,15,5:0
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