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航空发动机应用于高空,飞行跨度较大,温度剧烈变化,温差在少十度甚至到上百度。与此同时,大气环境产生剧烈变化,增加了对发动机冷却系统的要求。与地面环境相比,万米以上高空的散热条件恶劣。空气密度随海拔的递减又对活塞发动机提出了增压要求,从而给热管理系统引进了增压中冷这一新的热源,进而增加了冷却系统的负荷。这些因素制约着航空活塞发动机性能的提升和轻量化的发展,成为了困扰航空活塞发动机技术突破的瓶颈之一。
华南理工大学传质与分离工程课件Chapter 10c(mass and heat balance)。
华南理工大学流体力学与传热课件CHAPTER 10 Heat Transfer。
Purpose: Solidification of pure metal can be modelled by a two-phase Stefan problem, in which the distribution of temperature in the solid and liquid phases is described by the heat conduction equatio...
Method of cooling in a secondary zone of continuous casting of steel has a significant influence on a quality of continuously cast products mainly from the point of view of internal and surface defect...
Study of Heat Transfer in Concentric Annulus Flow by Liquid-Crystal Technique Abstract: In this, forced convection heat transfer on the inner surface in horizontal concentric annular duct flow was ex...
A detailed evaluation of performance parameters in the turbulent regime with regard to the enhancement of heat transfer using winglet-type vortex generators has been accomplished in this study. The he...
The heat-balance integral method is used to solve the non-linear heat diffusion equation in static turbulent superfluid helium (He II). Although this is an approximate method, it has proven that it gi...
In this paper we consider approximate travelling wave solutions to the Korteweg-de Vries equation. The heat-balance integral method is first applied to the problem, using two different quartic approxi...
This paper discusses the application of heat-balance integral method for solving the conduction equation in a variety of rewetting problems. A host of rewetting problems for various geometry, convecti...
Since the pioneering studies of Goodman on the application of the integral method to transient non-linear heat diffusion, much attention has been devoted nowadays to what is called heat balance integr...
Conjugate thermal explosion is an extension of the classical theory, proposed and studied recently by the author. The paper reports application of heat-balance integral method for developing phase por...

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