Results 51 to 60 of about 421,125 (270)
Nozzle dynamics and wavepackets in turbulent jets [PDF]
, 2020 We study a turbulent jet issuing from a cylindrical nozzle to characterise coherent structures evolving in the turbulent boundary layer. The analysis is performed using data from a large-eddy simulation of a Mach 0.4 jet. Azimuthal decomposition of the velocity field in the nozzle shows that turbulent kinetic energy predominantly resides in high ...
arxiv +1 more source
Diesel Fuel Injector Nozzle Reclamation
International Journal of Innovative Science and Research TechnologyDiesel engines are integral to various industries due to their efficiency and durability. A key component of these engines is the fuel injector nozzle, which can degrade over time due to contaminants, carbon deposits, and mechanical wear.
Sushant Lingras
semanticscholar +1 more source
The usage of 3D printing in the analysis of the product design: Case: Electronic enclosure of compact pressure transmitter [PDF]
Tehnika, 2020 Additive manufacturing involves manufacturing of products with complex geometry in relatively small quantities, as well as the tools and molds manufacturing for mass production.
Vorkapić Miloš D. +5 more
doaj
Vortex rings from notched nozzles [PDF]
, 2017 The formation of a vortex ring from a piston/nozzle apparatus depends on the nozzle exit's shape. Here we study the formation mechanism and the evolution of asymmetrical rings from notched nozzles using direct numerical simulations. Three types of nozzle are used: i) V-notched; ii) A-notched and iii)W-notched nozzles.
arxiv +1 more source
Structure optimization of submerged water jet cavitating nozzle with a hybrid algorithm
Engineering Applications of Computational Fluid Mechanics, 2019 It is critical to obtain a suitable geometry for a cavitating nozzle of submerged water jet, since a suitable geometry determines its cavitation intensity and cavitation distribution.
Yanzhen Chen, Yihuai Hu, Shenglong Zhang
semanticscholar +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
Performance Analysis of Liquid Propellant Micro-propulsion with Liquid Oxygen as Cryogenic Oxidizer [PDF]
فصلنامه علوم و فناوری فضایی, 2019 Micro-propulsion Systems are low thrust engines that be used in space missions like keeping satellite in orbit and changing orbit. These engines have several kinds and liquid propellant micro-propulsion is used in this project.
Amirhossein Edalatpour +2 more
doaj +1 more source
Estimation of thermal load on the nozzle base plate from small plumes at high temperature [PDF]
arXiv, 2023 A numerical study is performed to estimate thermal load on the nozzle base plate, which is in the upstream direction to the flow, from three hot plumes of pure (CO2), (H2O) and 50-50 (%) composition of (CO2) and (H2O) expanding through a convergent-divergent (CD) nozzle in a quiescent medium at 1.1 bar pressure and 298K temperature.
arxiv
Single-Cycle Impulse from Detonation Tubes with Nozzles [PDF]
, 2008 Experiments measuring the single-cycle impulse from detonation tubes with nozzles were conducted by hanging the tubes in a ballistic pendulum arrangement within a large tank.
Cooper, M., Shepherd, J. E.
core +1 more source
Predicting cell stress and strain during extrusion bioprinting [PDF]
arXiv, 2022 Bioprinting of living cells can cause major shape deformations, which may severely affect cell survival and functionality. While the shear stresses occurring during cell flow through the printer nozzle have been quantified to some extent, the extensional stresses occurring as cells leave the nozzle into the free printing strand have been mostly ignored.
arxiv