【摘 要】
：
A liquid fuel sheet injected into the combustor of gas turbine engine is deformed and atomized by the complex interactions between the liquid and high-speed air flows.However,the detailed atomization
【机 构】
：
Graduate School of Maritime Sciences,Kobe University,Japan
【出 处】
：
13th International Conference on Liquid Atomization and Spra
论文部分内容阅读
A liquid fuel sheet injected into the combustor of gas turbine engine is deformed and atomized by the complex interactions between the liquid and high-speed air flows.However,the detailed atomization process remains unknown.Various factors such as densities,velocities,viscosities,momentums,kinematic energies of gas and liquid,surface tension and instabilities of a gas-liquid interface affect the atomization process.In this study we investigated the effects of these factors on the growth rate and the wavelength of the primary liquid sheet oscillation induced by high-speed air flows.We performed two-dimensional numerical calculations using a volume tracking method and visualization experiments of a liquid sheet with high-speed air flows.As a result,we confirmed that gas velocity gradient at the interface is dominant for the growth of liquid sheet perturbation,which depends not on gas velocity but on liquid velocity due to the lip.The wavelength is in inverse proportion to the square root of momentum flux ratio.We measured the wave velocity using high speed images to confirm that liquid is not accelerated so much by air stream in the near wake.
其他文献
Light naphtha, or low octane gasoline, is a highly volatile intermediate hydrocarbon produced during the refining process. Due to its low energy requirements for production, use of light naphtha in co
This study is focused on the influence of hydro-erosive grinding factor on nozzle internal structure characteristics. Employing the method of X-ray CT scan in Shanghai Synchrotron Radiation Facility (
The injection and mixture process of natural gas and diesel have important influence on combustion and emissions in dual-fuel natural gas engine. In this paper, the high pressure dual-fuel injection o
In this study, the collision of three water drops aligned in the vertical direction was examined experimentally using a free-falling drop apparatus under three conditions, namely no flow (quiescent ai
Vibrating mesh nebulizers are devices which employ perforated plates that generate the aerosol without heating the fluid during atomization and have been shown to be suitable for delivery of suspensio
In the industrial painting, such as automobile paint, the rotary bell cup atomizer has been widely used. In the spray painting using the bell cup rotary atomizer, the paint droplets are generated near
Cryogen spray cooling has been applied to protect epidermis from thermal damage in laser dermatology. However, present cryogen R134a shows insufficient cooling capacity on minimizing the laser energy
The boiler combustion is the most important way of power and thermal energy generation in the industry. As the awareness of the energy-saving and environment protection is increasing, and the aim of t
There are numerous manufacturing processes used for metal powder production. Metal powders have been widely utilized in various industry applications, such as additive manufacturing, powder metallurgy
Analytical and experimental studies have been performed to predict discharge coefficients of open-type swirl injectors. The open-type swirl injectors with various geometries in tangential inlet diamet