Diffusion is when you have a fluid in which you are introducing some substance, and you want to figure out how that thing is going to spread out, the technical term is diffuse, into the ambient fluid. 扩散就是,当在某液体中加入某物质时,想算出该物质怎样在周围的液体中散开,专业术语叫做扩散。
In the upper Jurassic to Tertiary, there is the alkali diagenetic ambient, in which the inter-pore fluid is inherited from the buried syngenetic water, i.e., alkali saline. 上侏罗纪至第三系为碱性成岩环境,隙间流体继承了封存同生水特征,为碱性盐卤水。
It has shown from the experimental results that the vorticity near the jet boundary region is high in magnitude due to the interaction between the jet fluid and the entrained ambient fluid. 结果表明,由于射流的卷吸及其与环境流体之间的相互作用,使得射流边界处具有很高的涡量;
On the slope, the gradient of the Richardson number is reduced below 1/ 4, Kelvin-Helmholtz instability is possible, and leads to entrainment of ambient fluid into the plume, modifying the density, and hence the acceleration down the slope. 经计算发现在陆坡处,Richardson数的梯度小于1/4,因此宜发生Kelvin-Helmholtz不稳定,由于卷挟导致环境流体与高密度流体混合,修正了流体的密度,因此沿着斜坡加速下滑。
Numerical Study of Characteristics of Jets in Vertical Density-stratified Ambient Fluid 垂向密度变化的环境流体中射流特性的数值研究
The deposit influences positively the elemental concentration within the ambient waters, e. g. Fe, As, which is a result of the hydrothermal fluid and sea water mixing. 沉积物对周围水域中元素浓度起到积极影响,如Fe、As含量等,这是热液流体与海水相互作用的结果。
The results clearly reveal the features of synthetic jet and the process of vortex pairs 'formation, advection, diffusion and entrainment effect on ambient fluid. 结果再现了涡对的生成、迁移和扩散过程以及射流对周围流体存在的卷吸作用。
This dissertation focuses on the interaction between a plate and the ambient fluid. 本文主要研究了柔性板与流体相互作用的现象。
Complex interactions of plates with ambient fluid are common in nature, e.g. tree leaf falling in the air, fish swimming in the water. 在自然界中,柔性板与流体的相互作用是一种常见的现象,比如树叶在空气中飘落,鱼在水中游动等。
The gas entrainment controls the mixing rate of the jet fluid with the ambient fluid and affects the development of the flame and the residence time of reacting gas in a reaction system and the overall chemical reaction. 在燃烧过程中,射流的引射制约着射流流体与周围环境气体的掺混过程,从而影响火焰的发展及化学反应的持续时间。