Results 11 to 20 of about 7,427 (211)

Determination of the Rheological Model of Gel Propellant and Flow Characterization of Gel in a Pressure Swirl Injector [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2023
Gel propellants have the advantages of both liquid and solid propellants and present a promising future for the aerospace industry. Many gel propellants have shear-thinning behavior, which complicates their behavior in propulsion systems, especially the ...
Ali Saberi Moghaddam   +3 more
doaj   +1 more source

Investigation of nozzle geometry and wall roughness effects on diesel injector flow

open access: yesAIP Advances, 2023
The flow and design of fuel injector nozzles have a considerable influence on the spray and combustion characteristics of a diesel engine. In-cylinder combustion, atomization, and primary breakdown are all highly influenced by the cavitation and ...
Saima Zainab, Khalid Saifullah Syed
doaj   +1 more source

Simulation of the Internal Flow of the High-Pressure Swirl Injector

open access: yesJournal of Thermal Science and Technology, 2009
The simulation of the internal flow of a kind of high-pressure swirl injector was carried out with multiphase and cavitation models basing on the movement mesh. The spray was also simulated with the result of the internal flow simulation.
Lei FU, Tsuneaki ISHIMA, Wu-qiang LONG
doaj   +1 more source

Three-Dimensional Analysis of Pressure Swirl Injector Based on Trumpet Effects and Orifice Length Variations [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering
This research studies the pressure swirl injector’s internal and external flow under adiabatic and incompressible assumptions. A transient three-dimensional flow simulation has been employed.
Adel Makhdoum, Seyed Mahdi Mirsajedi
doaj   +1 more source

The spray characteristic of gas-liquid coaxial swirl injector by experiment

open access: yesMATEC Web of Conferences, 2017
Using the laser phase Doppler particle analyzer (PDPA), the spray characteristics of gas-liquid coaxial swirl injector were studied. The Sauter mean diameter (SMD), axial velocity and size data rate were measured under different gas injecting pressure ...
Chen Chen   +5 more
doaj   +1 more source

Spray characteristics of a multi-hole injector for direct-injection gasoline engines [PDF]

open access: yes, 2006
The sprays from a high-pressure multi-hole nozzle injected into a constant-volume chamber have been visualized and quantified in terms of droplet velocity and diameter with a two-component phase Doppler anemometry (PDA) system at injection pressures up ...
Arcoumanis, C.   +3 more
core   +1 more source

Computational Study of the Effect of Dual Air Swirling Injection on Turbulent Combustion of Kerosene–Air at a High Pressure

open access: yesEngineering Proceedings, 2023
The air compression ratio in a modern aero engine has been significantly increased to enhance the engine’s thermal efficiency, thereby leading to high-pressure combustion, with the combustor pressure exceeding the fuel’s critical pressure (~23 atm for ...
Dongxin Huang   +3 more
doaj   +1 more source

Experimental Study on the Dynamic Characteristics of Gas-Centered Swirl Coaxial Injector under Varying Ambient Pressure

open access: yesAerospace, 2023
To determine the dynamic characteristics of a gas-centered swirl coaxial injector under backpressure, an experimental system of dynamic injection in a backpressure chamber was constructed.
Xiaoguang Zhang   +5 more
doaj   +1 more source

Experimental Study of Spray and Combustion Characteristics in Gas-Centered Swirl Coaxial Injectors: Influence of Recess Ratio and Gas Swirl

open access: yesAerospace
The spray and combustion characteristics of a gas-centered swirl coaxial (GCSC) injector used in oxidizer-rich staged combustion cycle engines were analyzed.
Jungho Lee   +4 more
doaj   +1 more source

An Experimental Investigation on Flame Pulsation for a Swirl Non-Premixed Combustion

open access: yesEnergies, 2018
Flame pulsation has a significant effect on combustion, and understanding its oscillatory behavior is important to the combustion community. An experiment was performed to analyze the pulsation characteristics of a swirl non-premixed flame under various ...
Zhongya Xi   +4 more
doaj   +1 more source

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