摘要
雾化现象涉及到气液界面复杂的拓扑变化,使得雾化过程极其复杂。目前针对一次雾化的机理研究及模型尚不够准确,由于数值计算方法的快速发展,越来越多的研究者采用数值方法来研究一次雾化。本文采用大规模的直接数值模拟手段和Level Set追踪气液界面的方法模拟旋转射流的一次雾化过程,以揭示旋流雾化的机理和界面不稳定波的贡献。
Liquid atomization exists in a wide range of applications,such as printing,agriculture and combustion devices.However,liquid atomization involves topology change of gas-liquid interface that makes it complex.By now,it is still not fully understood of the atomization mechanism and the atomization modelling is not accurate.With the development of computational capacity and interface capturing method,more and more researchers perform the numerical simulation of atomization.The aim of the present work is to study the primary atomization by using the Level Set interface capturing method to reveal the swirling atomization mechanism and the contribution of surface instability.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2017年第3期553-556,共4页
Journal of Engineering Thermophysics
基金
国家自然科学基金(No.91541202)
