Results 21 to 30 of about 242,081 (346)
Importance of the nozzle-exit boundary-layer state in subsonic turbulent jets
Journal of Fluid Mechanics, 2018 To investigate the effects of the nozzle-exit conditions on jet flow and sound fields, large-eddy simulations of an isothermal Mach 0.9 jet issued from a convergent-straight nozzle are performed at a diameter-based Reynolds number of $1\times 10^{6 ...
G. Brès +8 more
semanticscholar +1 more source
Characterization of the Nozzle Ablation Rate Based on 3D Laser Scanning System
Aerospace, 2023 The nozzle of solid rocket motor (SRM) is easily ablated by high temperature, high pressure, high speed, and corrosive particles, which affects the stability of rocket flight.
Kaining Zhang +3 more
doaj +1 more source
Nozzle tip wetting in gasoline direct injection injector and its link with nozzle internal flow
International Journal of Engine Research, 2020 Fuel film in the gasoline direct injection injector tip, or so-called nozzle tip wetting, has been found to be an important contributor of particle emissions. Attempts have been made to reduce the nozzle tip wetting by optimizing nozzle geometry designs.
Weidi Huang +6 more
semanticscholar +1 more source
Design and Configuration of Ground Sample Components of Low Propulsion Monopropellant Thruster Using Some Engineering Software [PDF]
فصلنامه علوم و فناوری فضایی, 2021 Monopropellant thruster are used to inject a satellite into orbit or control its position on three axes in space missions. One of them is hydrazine thruster which is widely used.
Sajjad Davari +3 more
doaj +1 more source
Optimized Dimension Design of Catalytic Chamber of a 10 N Thruster [PDF]
فصلنامه علوم و فناوری فضایی, 2023 In this paper, the catalyst bed of a 10 N hydrazine monopropellant thruster was designed. The catalyst bed is including iridium granules, which is used to decompose the hydrazine in monopropellant thruster.
Sajjad Davari +3 more
doaj +1 more source
Breakup characteristics of diesel spray droplets under small valve opening injection
Nihon Kikai Gakkai ronbunshu, 2016 A laser 2-focus velocimeter (L2F) was used for measurements of velocity and size of droplets in diesel fuel sprays. Diesel fuel was injected intermittently into the atmosphere using a 8-hole injector nozzle. The diameter of the nozzle orifice was 0.112mm.
Noritsune KAWAHARADA +3 more
doaj +1 more source
Design and Test of Disinfection Robot for Livestock and Poultry House
智慧农业, 2020 In order to improve the efficiency and safety of epidemic prevention and disinfection operations for livestock and poultry breeding, the disinfection robot system and the automatic disinfecting mode were researched in this study.
FENG Qingchun +6 more
doaj +1 more source
Consecutive PIV Analyses on a Finite-Amplitude Pulsating Jet
Journal of Fluid Science and Technology, 2009 Pulsating jets are very common and sometimes useful in industrial fields, due to some differences in basic characteristics from steady jets. In this research, the authors focus upon the mechanism of the frequency effect on a finite-amplitude pulsating ...
Jiro FUNAKI +3 more
doaj +1 more source
Fluids, 2023 Reduction of energy expenditures required for various technological processes is a pressing issue in today’s economy. One of the ways to solve this issue in regard to liquefied natural gas (LNG) storage is the recovery of its vapours from LNG tanks using
Victor Bolobov +2 more
doaj +1 more source