Intro to Global Modeling and Prediction Session

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Presentation transcript:

Intro to Global Modeling and Prediction Session Gary Zank & Bill Matthaeus Heliosphere is a multiscale complex system! Global Mesoscale Microscale (kinetic)

Large scale models Analytical vs numerical Fluid (MHD)/ multifluid / Vlasov or hybrid Finite difference/spectral /finite element  Cannot resolve everything

Fluctuations/turbulence/unresolved/subgridscale models WKB/waves Turbulence transport In specified fields In dynamic fields No feedback With dynamical feedback (Reynolds stresses, mag “wave” pressure, turb electric field, pressure fluctuations, turb heating.) Numerically motivated dissipation Subgrid scale model Kinetic model