Shear Driven Turbulence and Coherent Structures in Solar Surface Simulations
Numerical simulations of convection near the solar surface are now advanced enough to reproduce both a large set of observational data and provide tests for convection models. We discuss the role of coherent structures in models of solar p-mode excitation,for which the analysis of numerical simulations has provided key inputs in the modelling. The robustness of these simulations is shown by a comparison illustrating the influence of boundary conditions on ensemble averaged quantities. In a concluding example advanced high resolution simulations are shown to resolve the onset of shear driven turbulence generated by up-and downflow structures.
Convection turbulence Sun:interior Sun:granulation Sun:helioseismology
F.Kupka
Max-Planck-Institute for Astrophysics,Karl-Schwarzschild Str.1,D-85748 Garching,Germany
国际会议
The 252th Symposium of the International Astronomical Union(国际天文学联合会第252届研讨会)
海南三亚
英文
451-462
2008-04-06（万方平台首次上网日期，不代表论文的发表时间）