双旋流空气雾化喷嘴喷雾、流动和燃烧性能

 综述了现代燃烧室广泛使用的双旋流空气雾化喷嘴的关键设计参数以及工况对装该种喷嘴的燃烧室性能的影响。双旋流空气雾化喷嘴的关键设计参数包括双旋流器、文氏管、套筒的结构、旋流器的旋流数、套筒张角、文氏管与套筒的相对尺寸等，这些参数与燃烧室主燃孔一起作用，控制了该喷嘴的喷雾和流动特性，从而控制着燃烧特性，如点火、熄火及燃烧效率等。这些讨论为设计该类结构燃烧室打下理论和经验方面的基础，是优化和提高这种类型燃烧室的性能的重要参考。

Atomization, Aerodynamics and Combustion Performance of Swirl Cup

This paper reviews the effects of key design parameters and operating conditions to swirl cup, which is applied widely to modern aeroengine combustor, on the characteristics of atomization, aerodynamics and combustion. The key parameters of swirl cup include the configurations of double swirlers, Venturi, sleeve, swirl numbers of swirler, angle and shape of sleeve flare, the relative dimensions of Venturi and sleeve. These parameters combined with the primary holes design of combustor control the atomization and aerodynamics downstream of swirl cup, thus control the combustion performances, such as ignition, blow-out and combustion efficiency. These discussions are the theory and experience bases of the design of this kind of combustor and the important references of optimization and improvement of the combustion performances.