Plasmas under strong compression, as existing in inertial confinement fusion capsules, experience a tremendous growth of their viscosity coefficient due to the temperature increase. It is known that this implies a fast decay of turbulence intensity. By studying this problem using both direct numerical simulations and spectral turbulence models, the authors show that this sudden dissipation effect is also accompanied with a sudden diffusion effect possibly enhancing mixing and sensitivity to initial conditions in these devices.
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Accueil > Équipes > Turbulence & Instabilités > Publications T&I > Publications T&I 2018
Article dans Phys. Rev. E (2018)
Self-similar regimes of turbulence in weakly coupled plasmas under compression
Giovanni Viciconte, Benoît-Joseph Gréa, & Fabien S. Godeferd
