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    A convergent method for linear half-space kinetic equations

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    Date
    2017-04-23
    Authors
    Li, Q
    Lu, Jianfeng
    Sun, W
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    Abstract
    We give a unified proof for the well-posedness of a class of linear half-space equations with general incoming data and construct a Galerkin method to numerically resolve this type of equations in a systematic way. Our main strategy in both analysis and numerics includes three steps: adding damping terms to the original half-space equation, using an inf-sup argument and even-odd decomposition to establish the well-posedness of the damped equation, and then recovering solutions to the original half-space equation. The proposed numerical methods for the damped equation is shown to be quasi-optimal and the numerical error of approximations to the original equation is controlled by that of the damped equation. This efficient solution to the half-space problem is useful for kinetic-fluid coupling simulations.
    Type
    Journal article
    Subject
    math.AP
    math.AP
    math.NA
    physics.comp-ph
    Permalink
    https://hdl.handle.net/10161/14046
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    Scholars@Duke

    Lu

    Jianfeng Lu

    Associate Professor of Mathematics
    Jianfeng Lu is an applied mathematician interested in mathematical analysis and algorithm development for problems from computational physics, theoretical chemistry, materials science and other related fields.More specifically, his current research focuses include:Electronic structure and many body problems; quantum molecular dynamics; multiscale modeling and analysis; rare events and sampling techniques.
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