Mixing of waters within riparian zones has been identified as an important influence on runoff generation and water quality. Improved understanding of the controls on the spatial and temporal variability of water sources and how they mix in riparian zones is therefore of both fundamental and applied interest. In this study, we have combined topographic indices derived from a high-resolution Dig...

[1] To reexamine the potential for lateral mixing over large distances (>100 km) by impact craters, a mathematical model utilizing the stable probability distribution is proposed for estimating lateral mixing efficiency on the Moon. The proposed model divides material mixing into shallow slope and steep slope regimes. Mixing in the shallow slope regime conforms to the condition that the exponen...

Specific qualitative requirements force steel manufacturers to strive to obtain ingots of the highest quality available the measure of which are on one hand, the cleanliness and homogeneity of chemical composition of steel, and the largest equiaxed zone on the other hand. Nowadays, a decided majority of steels is manufactured with continuous casting with structure homogenisation through electro...

Two types of mixing sub models are evaluated in connection with a joint scalar probability density function method for turbulent nonpremixed combustion Model calculations are made and compared to simulation results for homogeneously dis tributed methane air reaction zones mixing and reacting in decaying turbulence within a two dimensional enclosed domain The comparison is arranged to ensure tha...

We calculate the ionisation fraction in protostellar disk models using two different gas–phase chemical networks, and examine the effect of turbulent mixing by modelling the diffusion of chemical species vertically through the disk. The aim is to determine in which regions of the disk gas can couple to a magnetic field and sustain MHD turbulence. The disk models are conventional α–disks, and th...

We describe a new method for the calculation of river flow that uses the oxygen isotope composition of bivalve mollusk shells that grew in the river-water/seawater mixing zone of the Colorado River estuary. Sclerochronological techniques are used to identify tidally-induced, fortnight-scale bundles of daily growth increments within shell cross-sections. These fortnightly markers are used to est...

The material flow and microstructural evolution in the friction stir welds of a 6061-Al alloy to itself and of a 6061-Al alloy to 2024-Al alloy plates of 12.7 mm in thickness were studied under different welding conditions. The results showed that plastic deformation, flow, and mechanical mixing of the material exhibit distinct asymmetry characteristics at both sides of the same and dissimilar ...

[1] Vertical mixing plays a major role in functioning of seasonally stratified aquatic systems. In this study, we employ a 1-D stratification model and a 9 year forcing data set to simulate the thermal dynamics in a large, but shallow reservoir that regularly displays a polymictic character with complete mixing events during summer. Such mixing dynamics is typical for many water bodies in the t...

We consider the ow of two immiscible uids of diierent mobility in a porous medium. If the more mobile uid displaces the other, a macroscopically sharp interface is unstable. By growing a network of ngers on a mesoscopic scale, the two phases mix on a macroscopic scale. We are interested in the evolution of this mixing zone. We show that the eeect of a large but nite mobility ratio is strong eno...