POWER SPECTRA OF ARTIFICIAL GRANULATION

Two-dimensional, non-stationary hydrodynamic models of solar granulati on with gray and non-gray atmospheres have been used to obtain spatial , temporal, and spatio-temporal power spectra. The temperature, densit y of kinetic energy, monochromatic intensity, integrated flux, and ver tical velocity spectra have been studied for a comparison with the Kol mogorov power law as well as for a qualitative understanding of oscill ations, which are reproduced as a result of modelling.