Results 21 to 30 of about 421,125 (270)
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
Atmosphere, 2023 The stringency of vehicle exhaust emissions regulations resulted in a significant decrease in exhaust particulate matter (PM) emissions over the years. Non-exhaust particles (i.e., from brakes and tyres) account for almost half or more of road transport ...
Theodoros Grigoratos +10 more
doaj +1 more source
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
Robotics, 2022 The application of additive technologies, namely, fused deposition modeling, is a new reality for prototyping gripping devices of industrial robots. However, during 3D printing of holes and nozzle elements, difficulties arise with reducing their diameter.
Roman Mykhailyshyn +3 more
doaj +1 more source
Mechanical Engineering Journal, 2016 Output increase of combined cycle power plants is highly expected in order to deal with tight supply-demand situation of electricity and to save fuel consumption.
Shuichi UMEZAWA, Katsuhiko SUGITA
doaj +1 more source
Machines, 2022 In this paper, we seek to understand the influence of TPS standard nozzle shape on jet noise and improve the accuracy of flow and pressure ratio of aeronautical simulation.
Guozhen Mu, Qiongying Lyu, Yiming Li
doaj +1 more source
Numerical and Experimental Analysis of the Powder Flow Streams in the Laser Aided Material Deposition Process [PDF]
, 2004 Axial powder stream concentration between the nozzle end and the deposition point is an important process parameter in the laser aided material deposition process. The powder concentration is greatly influenced by the nozzle geometry in use. This paper
Liou, Frank, Pan, Heng, Thakar, Yogesh
core +2 more sources
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2022 Modern aircraft need increased maneuverability to maintain a competitive position. One way to improve this characteristic is to use methods to adjust the thrust vectors of a jet engine nozzle.
K. O. Tishchenko +2 more
doaj +1 more source
Lance Design for Scrap Melting Aggregates
Tehnički Glasnik, 2021 Metallurgical aggregates, which are used for metal waste melting, are equipped with lances for blowing gaseous media. These gaseous media allow especially scrap melting and intense homogenization of the resulting melt.
Ladislav Kovar, Pavel Novak, Tomas Hapla
doaj
Generation of nanoparticles in the concentrated energy (laser beam) and gas flow
Aviation, 2004 The method of generation and selection of small nanoparticles in the airflow is considered in this paper. To melt the material (stainless steel), a concentrated energy flow – a pulsed solid‐state laser beam – was used.
Arūnas Severas Amulevičius +3 more
doaj +1 more source