Recent advances in studies of dispersed turbulent multiphase flows and issues to be researched
-
摘要: 离散型多相流动,指气体-颗粒(气-固)、液体-颗粒(液-固)、液体-气泡、气体-液雾以及气泡-液体-颗粒等两相或三相流动.这种类型的多相流动广泛存在于能源, 航天和航空, 化工和冶金,交通运输, 水利, 核能等领域.本文阐述了离散型多相流动的国内外基础研究,包括颗粒/液滴/气泡在流场中受流体动力作用力的研究, 颗粒-颗粒,液滴-液滴,气泡-气泡之间以及颗粒/液滴和壁面之间碰撞和聚集规律的研究,颗粒-气体和气泡-液体湍流相互作用的研究, 和数值模拟的研究,包括多相流动的雷诺平均模拟、大涡模拟和直接数值模拟的研究进展.最后, 归纳了目前尚待研究的需求.Abstract: Dispersed multiphaseflows denote gas-particle (gas-solid), liquid-particle(liquid-solid), liquid-bubble, gas-spray, andbubble-liquid-particle flows. This kind of flows is widelyencountered in power, aeronautic, astronautic, chemical andmetallurgical, transportation, hydraulic and nuclear engineering.The recent advancements in both domestic and internationalfundamental studies are discussed, including studies onfluiddynamic forces acting on particles/droplets/bubbles,particle-particle, droplet-droplet and bubble-bubble collisions,gas-particle and bubble-liquid turbulence interactions as well asa variety of numerical simulations, such as Reynolds averagedsimulation, large-eddy simulation and direct numerical simulationof dispersed multiphase flows, where the results obtained by thepresent author are also covered. And important key issues to beresearched are finally summarized.
-
Key words:
- dispersed flow /
- multiphase flow /
- turbulence /
- numerical simulation
点击查看大图
计量
- 文章访问数: 2581
- HTML全文浏览量: 118
- PDF下载量: 1695
- 被引次数: 0