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Faculty Detail

Volker Elling

Associate Professor

2856 East Hall
Phone:  (734) 764-0366
Email:  velling@umich.edu

  • Affiliation(s)
    • Applied Mathematics
      Differential Equations
  • About

    Personal Home Page

    I am working on differential and integral equations modelling compressible and incompressible fluids. A particular theme is rigorous construction and numerical discovery of special exact solutions, which I use study transitions and pathological behaviour in physics and numerics.

    I have worked on shock waves that interact with each other or with solid boundaries, in regular or Mach reflections. More recently I have begun to study vortex sheets -- curves of discontinuity in tangential velocity, with continuous pressure and normal velocity -- which have interesting and theoretically important spiral rollup and unstable behaviours.

    Equations in this area are typically nonlinear and hyperbolic/parabolic, with steady or self-similar solutions leading to elliptic/mixed type problems. Free boundaries and corners with singularities are common. Since solutions of non-degenerate PDE tend to be smooth and featureless, in absence of singularities induced by the data, many of the physically and theoretically interesting phenomena involve degeneracy, such as PDE that lose ellipticity as we approach a domain boundary, or oscillatory integral equations that do not have convergent series solutions at infinity.

     

    News

    Volker Elling is named an Alfred P. Sloan Research Fellow.     2011
    These extraordinarily competitive awards are selected from nominations of the best young scientists from the U.S. and Canada.
    Volker Elling is the recipient of a 2011 NSF CAREER Award      2011
    for his project "Non-Uniqueness in Inviscid Flow and Algebraic Vortex Spirals." The CAREER awards provide early career development for faculty with outstanding potential.