Advances in Realistic MHD Simulation

Abstract:

Modern high-resolution observations from ground and space telescopes reveal a complicated dynamics of turbulent magnetoconvection and its effects in the solar atmosphere and corona, showing intense interactions across different temporal and spatial scales. Interpretation of the observed complex phenomena and understanding of their origins is impossible without advanced numerical models. The rapid growth of computational capabilities has made possible 3D radiative MHD numerical simulations that reproduce solar conditions with a high degree of realism. Such simulations allow us to determine physical processes hidden from direct observations. They also provide synthetic data for calibration of observational data and for developing and testing ideas for improved diagnostics. In the talk I will discuss current advances and challenges of modeling multi-scale turbulent magnetoconvection, magnetic self-organization phenomena in the photosphere, their dynamical interaction with the chromospheric layers, and modeling of spectro-polarimetric observations for different instruments.