On the Diffusion by Turbulent Motion

Magnetic Transport On The Solar Atmosphere By Turbulent Ambipolar Diffusion

The lower solar atmosphere consists of partially ionized turbulent plasmas harbouring velocity field, magnetic field and current density fluctuations. The correlations amongst these small scale fluctuations give rise to large scale flows and magnetic fields which decisively affect all transport processes. The three fluid system consisting of electrons, ions and neutral particles supports nonide...

On the Statistical Theory of Turbulent Diffusion.

the role of task-based techniques on the acquisition of english language structures by the intermediate efl students

this study examines the effetivenss of task-based activities in helping students learn english language structures for a better communication. initially, a michigan test was administered to the two groups of 52 students majoring in english at the allameh ghotb -e- ravandi university to ensure their homogeneity. the students scores on the grammar part of this test were also regarded as their pre...

On the motion of a phase interface by surface diffusion

Mullins, In a series of papers, developed a surface dynamics for phase interfaces whose evolution 1s controlled by mass diffusion within the interface. It Is our purpose here to embed Mullins's theory within a general framework based on balance laws for mass and capillary forces In conjunction with a version of the second lav, appropriate to a purely mechanical theory, which asserts that the ra...

Turbulent pair diffusion.

Kinematic simulations of turbulent pair diffusion in planar turbulence with a k(-5/3) energy spectrum reproduce the laboratory results of Jullien et al. [Phys. Rev. Lett. 82, 2872 (1999)]], in particular the stretched exponential form of the probability density function of pair separations and their correlation functions. The root mean square separation is found to be strongly dependent on init...