Fluctuations of temperature gradients in turbulent thermal convection
Fluctuations of temperature gradients in turbulent thermal convection
Broad theoretical arguments are proposed to show, formally, that the magnitude G of the temperature gradients in turbulent thermal convection at high Rayleigh numbers obeys the same advection-diffusion equation that governs the temperature fluctuation T, except that the velocity field in the new equation is substantially smoothed. This smoothed field …