On the basis of the analogy between the density evolution of a heated gas of noninteracting particles and the diffraction of monochromatic optical waves by a random phase screen, a formula is derived for the correlation function of intensity fluctuations behind the screen. A hypothesis on the ...
The effect of wall roughness on particle behavior in two-phase flows in a horizontal backward-facing step is studied using a phase-Doppler particle anemometer. The results show that the wall roughness widens the particle velocity probability density distribution, enhances the redistribution of particle...
heat and mass transfer in stars and the formation of planets are all governed by turbulence. If these phenomena were not complicated enough, adding many particles to turbulent fluid flows renders the situation even more complex, since these themselves may exhibit strong turbulent behavior [1,2,3,...
While a chaotic behavior has been measured and characterized in this regime, the dynamics still shows strong auto-correlation, as proved by the appearance of circle, lemniscates or loops in the trajectory. This coherence fades away as the memory is increased even further (Fig. 1f). In the ...
A multiphase- hydrodynamic model was solved with the phase field method and the Cahn-Hilliard equation to simulate the behavior of particle injection with nitrogen as conveying gas through a submerged lance into a lead bath in two dimensions. The residence and mixing time were obtained for differen...
However, char particles of different sizes and conversion cause segregation in the fuel reactor, which influences the contact time between fuel gases and the carrier, therefore changes gas conversion behavior. In order to give guidance to keep the gas conversion high in the fuel reactor, this ...
Effect of bed thickness on the segregation behavior of particle mixtures in a gas fluidized bed 来自 Semantic Scholar 喜欢 0 阅读量: 104 作者:YQ Feng,AB Yu 摘要: Discrete particle simulation has been recognized as a useful numerical technique to elucidate the fundamentals of particlefluid flow, ...
By observing the different behavior of the particles at ground level and at 260 m, we hypothesized that a decoupling in terms of particle number size distribution and chemical composition between the two heights is probable. In more detail, we observed significant differences in the particle chem...
It is essential in understanding the behavior of gas-filled detectors, such as proportional counters, Geiger–Muller counters\(\ddot{u}\), and other gaseous detectors used in particle physics experiments and radiation detection applications. It helps to describe the gas amplification process in ...
Thornton and Ning [290], use a simplified energy conservation equation to describe the stick-bounce behavior of adhesive, elastic-plastic spheres. The energy conservation equation is defined as (76)12·m*vi2=12·m*vr2+Ead, where vi and vr are the velocities before and after the impact. ...