Results 21 to 30 of about 245,653 (257)
Nihon Kikai Gakkai ronbunshu, 2017 This paper studies the condition of reducing knock intensity which is the pressure oscillation initiated by auto-ignition of the end gas. The knock intensity is thought to be decreased by suppressing the reaction rate of auto-ignition. In this study, the
Mitsuaki OHTOMO +3 more
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A mechanism for high-frequency oscillation in ramjet combustors and afterburners [PDF]
, 1956 An experimental investigation was made of the behavior of a small two-dimensional combustion chamber, burning a uniform mixture of air and fuel vapor under conditions of high-frequency oscillation or screech.
Marble, Frank E., Rogers, Don E.
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Energies, 2021 Supercritical carbon dioxide (SCO2) jets are a promising method to assist drilling, enhance oil–gas production, and reduce greenhouse gas emissions. To further improve the drilling efficiency of SCO2 jet-assisted drilling, organ-pipe nozzles were applied
Mengda Zhang +2 more
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The transfer functions of rocket nozzles [PDF]
, 1952 The transfer function is defined as the fractional oscillating mass flow rate divided by the fractional sinusoidal pressure oscillation in the rocket combustion chamber. This is calculated as a function of the frequency of oscillation.
Tsien, H. S.
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Energy Science & Engineering, 2022 The aim of this paper is to analyze local autoignition induced by secondary flame acceleration. The secondary flame acceleration process and the local autoignition formation mechanism at the condition of the secondary flame acceleration propagation were ...
Yangyang Yu +3 more
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Study on Self-Excited Oscillation Suppression of Supersonic Inlet Based on Parallel Cavity
Frontiers in Energy Research, 2022 Aiming at the problem of self-excited oscillation in a supersonic inlet, the oscillation suppression of parallel cavities in a shock system is studied. Based on the shock dynamic model, the theoretical calculation model of parallel cavity under dynamic ...
FeiChao Cai, Xing Huang
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Analysis of the forces driving the oscillations in 3D fluidic oscillators [PDF]
, 2019 One of the main advantages of fluidic oscillators is that they do not have moving parts, which brings high reliability whenever being used in real applications.
Baghaei, Masoud +1 more
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Analysis of Macroscopic Cavitation Characteristics of a Self-Excited Oscillating Cavitation Jet Nozzle [PDF]
Journal of Applied Fluid Mechanics, 2023 The self-excited oscillating cavitation jet nozzle (SEOCJN) serves as a crucial component for converting hydrostatic energy into dynamic pressure energy and ensuring optimal hydraulic and cavitation performance of cavitating jets.
Y. Zhao, G. Li, F. Zhao, X. Wang, W. Xu
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Advances in Mechanical Engineering, 2017 A preliminary experimental investigation was performed with a focus on the axial pressure oscillations of self-resonating pulsed waterjet under different impinging surfaces.
Deng Li +3 more
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Theoretical and experimental study of radiation pressure-induced mechanical oscillations (parametric instability) in optical microcavities [PDF]
, 2006 Radiation pressure can couple the mechanical modes of an optical cavity structure to its optical modes, leading to parametric oscillation instability. This regime is characterized by regenerative oscillation of the mechanical cavity eigenmodes.
Carmon, T. +3 more
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