Presentation / Talk

Electromagnetic turbulence simulations of the tokamak scrape-off layer

We present the newest version of the Global Braginskii Solver (GBS), which addresses tokamak boundary turbulence. GBS now employs a 3D cartesian communicator and a parallel multigrid Poisson/Ampere solver, achieving excellent parallel scalability, and it is being ported to manycore and hybrid architectures. We discuss two new capabilities resulting from improved algorithms: (a) the inclusion of electromagnetic fluctuations at realistic plasma size, and (b) a non-Boussinesq Poisson operator for the electrostatic potential. Simulations of the turbulent plasma dynamics are benchmarked against state-of-the-art imaging diagnostics in tomakak experiments, showing remarkable agreement in many observables.

    Keywords: CRPP_EDGE


    • EPFL-TALK-209038

    Record created on 2015-06-17, modified on 2017-05-12

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