Presentation on theme: "Experimental tasks Spectra Extend to small scale; wavenumber dependence (Taylor hyp.); density, flow Verify existence of inertial range Determine if decorrelation."— Presentation transcript:
Experimental tasks Spectra Extend to small scale; wavenumber dependence (Taylor hyp.); density, flow Verify existence of inertial range Determine if decorrelation rate has dependence on B 0 Bispectrum in small scales, response to perturbation Measure anisotropy in small scales or B 2 (k, k | |, ) Physics of two high frequency subranges Dissipation? two-fluid effects? kinetic Alfvén wave? Driving sources besides tearing High k in PPCD, electrostatic, edge localized MRX: b/B ~ 1 region - effect of guide field on Alfvén waves, anisotropy, etc. MRX, SSPX, SSX: decaying turbulence - validity of Kulsrud magnetogenesis Transport: / | | ?. is there any resonant particle transport?
Theory Properties of turbulence under variation of mean field strength in spectra that peak at low k, and high k Measurement of spectral energy transfer Correlation to wave physics Effect of collisionless damping on spectrum; effect of anisotropy on dissipation Analytic theory for anisotropic spectrum in RMHD (a la quasi geo turb) Inverse cascade analysis closure theory - do Alfvénic interactions induce inverse energy cascade? Compressible turbulence - issues? Magnetic fluctuations, density distribution Thermal conductivity Braginskii, stochastic field Two fluid (Hall effects) Explanation of large for cosmic rays Thermal conductivity vs. electron diffusivity in chaotic field?
Theory continued Mirror spectrum Diffusion in multi-scale tangled field - firmer footing? Use of MHD turbulence measurements in transport theories? Checking of diffusion and heat conduction theories with experiments? MST, MRX Full 3D simulations of heat transport (collisions, e-e energy exchange, etc.)