Dynamics and longevity of an initially stratified mantle

Dynamics and longevity of an initially stratified mantle

[1] We performed laboratory experiments of thermochemical convection in order to determine the rate at which an initially density-stratified, and hence layered, mantle will be homogenized. In the experiments, two layers of fluid with similar viscosities are superposed and heated from below. Initially, in the ‘‘stratified’’ regime, mechanical entrainment into both layers occurs by viscous coupli...

Evolution of an initially turbulent stratified shear layer

Velocity fluctuations of initially stratified sedimenting spheres

The study of velocity fluctuations in the sedimentation of spheres is complicated by the time evolution of the underlying particle distribution, both at the microscale and in the bulk. We perform a series of experiments and simulations to isolate the effect of an initial, stable stratification in the particle concentration. The directly observed dependence of velocity fluctuations on stratifica...

Mantle Dynamics 7.01 Mantle Dynamics Past, Present and Future: An Introduction and Overview

7.01.2 A Historical Perspective on Mantle Dynamics 2 7.01.2.1 Benjamin Thompson, Count Rumford (1753-1814) . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 7.01.2.2 John William Strutt, Lord Rayleigh (1842-1919) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7.01.2.3 Henri Claude Bénard (1874-1939) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 7.01.2...

development and implementation of an optimized control strategy for induction machine in an electric vehicle

in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...