Results 41 to 50 of about 421,125 (270)
Analytical One-Dimensional Model of Drop Ejection from a Micro-Size Nozzle [PDF]
arXiv, 2023 In this article, we construct a novel one-dimensional model of drop ejection from a micro-size nozzle due to a short pressure pulse applied to the liquid in the nozzle. The pressure pulse supplies the kinetic energy to the perturbed liquid-bulge squeezed from the nozzle, which then ballistically lengthens forming a ligament.
arxiv
A dynamic model for current-based nozzle condition monitoring in fused deposition modelling
Progress in Additive Manufacturing, 2019 3D printing and particularly fused deposition modelling (FDM) is widely used for prototyping and fabricating low-cost customised parts. However, present fused deposition modelling 3D printers have limited nozzle condition monitoring techniques to ...
Yedige Tlegenov, W. Lu, G. Hong
semanticscholar +1 more source
Simulation and experiment of abrasive flow finishing characteristics of nozzle jetting hole runner
Jin'gangshi yu moliao moju gongcheng, 2023 When there is a certain inlet chamfer and nozzle taper at the inlet of the nozzle orifice passage, the efficiency of the engine can be further improved by improving the fuel atomization effect of the nozzle.
Mengnan LI +3 more
doaj +1 more source
Expansion Waves at the Outlet of the Supersonic Two-Phase Flow Nozzle
Journal of Thermal Science and Technology, 2007 Two-phase flow nozzles are used in the total flow system of geothermal power plants and in the ejector of the refrigeration cycle, etc. One of the most important functions of the two-phase flow nozzle is converting two-phase flow thermal energy into ...
Masafumi NAKAGAWA +3 more
doaj +1 more source
Energies, 2023 With the increasing demand for heavy oil, core annular flow (CAF) is an economical method to transport heavy oil, and many researchers have explored the energy-saving aspects of the CAF method.
Baoshan Xie +5 more
doaj +1 more source
A physical model for indirect noise in non-isentropic nozzles: Transfer functions and stability [PDF]
, 2021 We propose a mathematical model from physical principles to predict the sound generated in nozzles with dissipation. The focus is on the sound generated from the acceleration of temperature inhomogeneities (also known as entropy waves), which is referred to as indirect noise.
arxiv +1 more source
Journal of Fluid Science and Technology, 2013 This report aims to clarify the relationship between the preferred frequency and jet diffusion. The disturbance frequency used to control mixing, based on the preferred frequency of a flow in the initial area of the jet column mode, is often selected ...
Yuki KAWAI, Motoaki KIMURA
doaj +1 more source
Black hole acoustics in the minimal geometric deformation of a de Laval nozzle [PDF]
, 2017 The correspondence between sound waves, in a de Laval propelling nozzle, and quasinormal modes emitted by brane-world black holes deformed by a 5D bulk Weyl fluid are here explored and scrutinized.
R. Rocha
semanticscholar +1 more source
Similarity Law on Shedding Frequency of Cavitation Cloud Induced by a Cavitating Jet
Journal of Fluid Science and Technology, 2012 In order to clarify the mechanism of cavitation cloud shedding, the shedding frequencies of cavitation clouds were investigated by high-speed observations and image analysis. The results indicate that the shedding frequency follows the similarity law for
Satoshi NISHIMURA +2 more
doaj +1 more source
Dynamics of Post-Injection Fuel Flow in Mini-Sac Diesel Injectors Part 1: Admission of 1 External Gases and Implications for Deposit Formation [PDF]
, 2019 Samples of unadditized, middle distillate diesel fuel were injected through real-size optically accessible mini-sac diesel injectors into ambient air at common rail pressures of 250 bar and 350 bar respectively.
d’Ambrosio S +11 more
core +1 more source