Results 31 to 40 of about 30,831 (294)

Investigation of delamination mechanisms during a laser drilling on a cobalt-base superalloy [PDF]

open access: yes, 2013
Temperatures in the high pressure chamber of aircraft engines are continuously increasing to improve the engine efficiency. As a result, constitutive materials such as cobalt and nickel-base superalloys need to be thermally protected.
SCHNEIDER, Matthieu   +8 more
core   +1 more source

Effect of Rheological Properties of Aqueous Solution of Na-CMC on Spray Angle for Conical Pressure-Swirl Atomizers

open access: yesEnergies, 2020
Aerosol is a multiphase system, created as a result of the dispersion of a liquid in a gaseous medium. The atomized liquids are most often water and fuel; however, they can be any other substance.
Krystian Czernek   +2 more
doaj   +1 more source

Investigation of the Effect of Low-Temperature Annealing and Impact Angle on the Erosion Performance of Nickel-Tungsten Carbide Cold Spray Coating Using Design of Experiments [PDF]

open access: yes, 2022
This study investigates the solid particle erosion performance of cold sprayed tungsten carbide-nickel coatings using alumina particles as erodent material. After coating fabrication, specimens were annealed in an electric furnace at a temperature of 600
Yin, Shuo   +3 more
core   +1 more source

Hydrodynamic Cavitation in the Fuel Injector Nozzle and its Effect on Spray Characteristics: A Review [PDF]

open access: yesJournal of Heat and Mass Transfer Research, 2023
The performance of internal combustion engines can be improved by optimizing fuel spray characteristics. However, high injection pressures and small nozzle diameters in modern fuel injectors result in cavitation flows inside the nozzle, making it ...
Mehul Bambhania, Nikul Patel
doaj   +1 more source

Simulation of parameters effects on fluid flow behavior in the spraying nozzle: A case study of greenhouse cultivation

open access: yesResults in Engineering, 2023
The study aims to investigate the effect of nozzle diameter size and pressure on the angle and flow rate of the spray nozzle in greenhouse cultivation. The misting system is a new method that is used to provide humidity and reduce the temperature of the ...
Jalal Bahreh Bar   +3 more
doaj   +1 more source

Design and Analysis of Pressure- Swirl Fuel Injector with Full- Cone Spray for Catalytic Thruster [PDF]

open access: yesعلوم، فناوری و کاربردهای فضایی, 2022
The monopropellant thrusters of the situation control system are a requirement for the development and application of satellites and space capsules in space, which are high-tech and expensive. In this paper, the design and simulation of a pressure- swirl
Hadiseh Karimaei
doaj   +1 more source

Influence of orifice geometry on atomization characteristics of pressure swirl atomizer

open access: yesScience Progress, 2020
The spray characteristics of the pressure swirl nozzle are experimentally studied using particle dynamics analysis (PDA) and high-speed photography system in this paper, specifically focusing on the dependence of geometrical dimensions of orifice on the ...
Huilong Zheng   +4 more
doaj   +1 more source

Spray characteristics of supercritical DME

open access: yesNihon Kikai Gakkai ronbunshu, 2020
The penetration of DME spray is shorter than that of diesel fuel when the same injection system is used because DME cannot be injected at high pressure like diesel fuel due to its high compressibility. Chris reported that supercritical gasoline spray has
Ryuhei TAKADA   +6 more
doaj   +1 more source

Research on geometrical parameters effect of fan nozzle jet performance based on orthogonal experiment

open access: yesThe Journal of Engineering, 2018
In order to determine the significance and importance order of the jet performance caused by fan nozzle's geometric parameters of aero-engine online cleaning equipment, the orthogonal experiment method, standard k–ɛ turbulence model and volume of fluid ...
Xudong Shi   +3 more
doaj   +1 more source

A nasal spray vaccination device based on Laval nozzle and its experimental test

open access: yesScientific Reports, 2023
In order to realize the application of the nasal spray vaccination in the prevention and protection of respiratory infectious diseases, a nasal spray vaccination device is designed in this paper.
Zhong Wang   +4 more
doaj   +1 more source

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