Results 31 to 40 of about 421,125 (270)

Influence of Spray Nozzle Operating Parameters on the Fogging Process Implemented to Prevent the Spread of SARS-CoV-2 Virus

open access: yesEnergies, 2021
This article reports the results of a study into the effect of operating parameters on the occurrence and course of gas–liquid two-phase phenomena during the fogging process carried out with the use of a conical pressure-swirl nozzle.
Waldemar Fedak   +9 more
doaj   +1 more source

Flow characteristics of a round jet with divergent and convergent tapered annulus

open access: yesNihon Kikai Gakkai ronbunshu, 2014
The flow characteristics of round air jets with tapered annulus was investigated experimentally. The divergent and convergent tapered annulus was installed concentrically inside of the round nozzle.
Taichi USUZAWA   +2 more
doaj   +1 more source

Evaluation on the Performance of Automobile Engine Using Air Injection Nozzle in the Intake Manifold

open access: yesEnergies, 2021
In the present study, a nozzle was used to improve the flow performance of an intake manifold, and its effects on the automobile engine output and the exhaust gas were experimentally studied.
Taejung Kim   +3 more
doaj   +1 more source

Investigation of Flow Characteristics inside a Dual Bell Nozzle with and without Film Cooling [PDF]

open access: yesAerospace Science and Technology, 2020, 2021
In this study, we perform a two-dimensional axisymmetric simulation to assess the flow characteristics and understand the film cooling process in a dual bell nozzle. The secondary stream with low temperature is injected at three different axial locations on the nozzle wall, and the simulations are carried out to emphasize the impact of injection ...
arxiv   +1 more source

Evaluation of the efficiency of cleaning dental plaque on titanium using a cavitating jet

open access: yesJournal of Biomechanical Science and Engineering, 2014
Dental plaque, which adheres to the surfaces of dental implants and remains in the gingival crevices, can cause peri-implantitis, which is similar to periodontal disease; consequently, cleaning the dental plaque from these surfaces is very important.
Mariko KIKUCHI   +4 more
doaj   +1 more source

Characterization of the Nozzle Ablation Rate Based on 3D Laser Scanning System

open access: yesAerospace, 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

Breakup characteristics of diesel spray droplets under small valve opening injection

open access: yesNihon 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

Experimental Determination of the Flow Coefficient for a Constrictor Nozzle with a Critical Outflow of Gas

open access: yesFluids, 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

Nozzle contours for minimum particle-lag loss [PDF]

open access: yes, 1963
The flow of a gas-particle mixture through a rocket nozzle is analyzed under the approximation that the particle slip velocity is small compared with the average mixture velocity, using one-dimensional gasdynamics, the Stokes drag law, and corresponding ...
Marble, Frank E.
core   +1 more source

Throughput enhancement of parallel step emulsifier devices by shear-free and efficient nozzle clearance.

open access: yesLab on a Chip, 2019
Step emulsification is an attractive method for production of monodisperse drops. Its main advantage is the ability to parallelize many step emulsifier nozzles to achieve high production rates.
Elad Stolovicki, R. Ziblat, D. Weitz
semanticscholar   +1 more source

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