Results 21 to 30 of about 47,287 (163)

Particle Deposition on a Truncated Cylinder in a Supersonic Flow at Low Pressure [PDF]

open access: yesAerosol Science and Technology, 1994
Deposition of particles, suspended in supersonic gas flows, onto the impaction plane of a truncated cylinder in low pressure has been studied numerically. The analysis of axisymmetric compressible Navier-Stokes equations was carried out, for a gas phase, by using the lower-upper symmetric Gauss-Seidel (LU-SGS) scheme.
Oh, JJ, Kim, SS Kim, Sang Soo
openaire   +2 more sources

Investigation on the Combustion and Emission Characteristics in a Diesel Engine Fueled with Diesel-Ethanol Blends

open access: yesApplied Sciences, 2022
The aim of this work is to investigate the effects of different diesel–bioethanol blended fuels on combustion, engine performance, and emission characteristics in a four-cylinder common rail direct injection (CRDI) diesel engine according to various ...
Sam Ki Yoon
doaj   +1 more source

Experimental investigation on n-butanol/methyl oleate dual fuel RCCI combustion in a single cylinder engine at high-load condition

open access: yesScientific Reports, 2021
Reactivity controlled compression ignition (RCCI) engines have a high thermal efficiency as well as low emissions of soot and nitrogen oxides (NOx).
Xin Wang   +4 more
doaj   +1 more source

Structure of an ultrahigh internal pressure compound cylinder and its simulation by AMESim

open access: yesThe Journal of Engineering, 2018
This study presents an ultrahigh internal pressure compound booster cylinder and analyses the structure and principle of the cylinder. Its advantages include low input, high pressure output, and direct action on the execution cylinder.
Geqiang Li   +4 more
doaj   +1 more source

Experimental Study of the Model Compartment of the Low-Pressure Cylinder of K-320-240 Turbines of JSC "Turboatom" [PDF]

open access: yesJournal of Mechanical Engineering, 2019
A reduction in the efficiency of the last stages of powerful steam turbines, as well as their reliability due to an increase in the disturbing forces acting on the blades, is an urgent study subject, which requires a comprehensive analysis of gas-dynamic
Svitlana V. Alyokhina   +3 more
doaj   +1 more source

Numerical investigation on the cavitating wake flow around a cylinder based on proper orthogonal decomposition

open access: yesFrontiers in Energy Research, 2023
The non-cavitating and cavitating wake flow of a circular cylinder, which contains multiscale vortices, is numerically investigated by Large Eddy Simulation combined with the Schnerr–Sauer cavitation model in this paper.
Guangjian Zhang   +4 more
doaj   +1 more source

Improvement and Application of Key Tools for Hydraulic Jet Fracturing [PDF]

open access: yesE3S Web of Conferences, 2021
Aiming at the problems of poor reliability, low construction efficiency, and short service life of fracturing string in the application of hydraulic jet technology in Daqing Oilfield, targeted research has been carried out on key tools such as rubber ...
Zhang Yibo
doaj   +1 more source

Cavitation upon low-speed solid–liquid impact

open access: yesNature Communications, 2021
A solid hitting a liquid surface normally creates a region of high pressure at the solid-liquid contact area. Now, it is shown that for a flat-bottomed cylinder hitting a liquid at low-enough impact speed, the local pressure is sufficiently low to cause ...
Nathan B. Speirs   +4 more
doaj   +1 more source

A Virtual In-Cylinder Pressure Sensor Based on EKF and Frequency-Amplitude-Modulation Fourier-Series Method

open access: yesSensors, 2019
As a crucial and critical factor in monitoring the internal state of an engine, cylinder pressure is mainly used to monitor the burning efficiency, to detect engine faults, and to compute engine dynamics.
Qiming Wang   +3 more
doaj   +1 more source

Experimental determination of conditional clearances for cylinder piston seals of compressor units [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2019
The current problem of determining the dependence of the conditional clearance in the cylinder-piston seal on the operating pressure at a fixed piston is solved by the authors in this paper.
S. S. Busarov   +2 more
doaj   +1 more source

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