Results 51 to 60 of about 34,664 (208)

Experimental Investigation on Pressure and Flame Surface Oscillation in a Dual-Cavity Scramjet Combustor

Energies
Pressure and flame surface oscillations are common in supersonic combustion instability. Understanding the characteristics, generation, maintenance, and interaction mechanisms of these oscillations is crucial. An experimental setup with an alcohol heater
Wenhao Liao, Yidan Chen, Ningfei Wang
doaj   +1 more source

Combustion Characteristics of a Hydrogen-Fueled TJI Engine under Knocking Conditions

Energies
The use of a two-stage combustion system in a hydrogen-fueled engine is characteristic of modern internal combustion engines. The main problem with hydrogen combustion in such systems is knocking combustion.
Ireneusz Pielecha, Filip Szwajca
doaj   +1 more source

Nonlinear analysis of pressure oscillations in ramjet engines [PDF]

, 1986
Pressure oscillations in ramjet engines have been studied using an approximate method which treats the flow fields in the inlet and the combustor separately. The acoustic fields in the combustor are expressed as syntheses of coupled nonlinear oscillators
Culick, Fred E. C., Yang, Vigor
core  

Development and testing of the solid fuel power plant axisymmetric model applied to regimes of combustion chamber dynamic instability

Авіаційно-космічна техніка та технологія
Innovative use of energy resources in deep space planets is a technology that allows a significant increase in space exploration based on the design of rocket power plants, particularly for lunar landing modules using (Lunar Regolith) propellants ...
Olexiy Nikolayev, Inna Bashliy
doaj   +1 more source

Experimental Investigation on the High-frequency Pressure Oscillation Characteristics of a Combustion Process in a DI Diesel Engine

Energies, 2020
It is difficult to decompose the in-cylinder pressure of combustion of the direct injection (DI) diesel engine, a transient process associated with complicated oscillation components, because of its steep property. An adaptive cyclic average method based
Xu Zheng, Nan Zhou, Quan Zhou, Yi Qiu, Ruijun Liu, Zhiyong Hao   +5 more
doaj   +1 more source

Utilization of Combustion-Driven Oscillations [PDF]

The Journal of the Acoustical Society of America, 1963
The possible applications of combustion-driven oscillations fall into two categories. The first category includes applications that are related to the combustion process itself, such as those concerned with the possibility of alterlog space heat-release rate, combustion efficiency, heat transfer to surfaces, and agglomeration of solid or liquid ...
openaire   +1 more source

Numerical study of acoustic oscillations and combustion instabilities in solid propellant rocket [PDF]

, 1997
A numerical analysis of unsteady motions in solid rocket motors has been conducted. A fully coupled implicit scheme based on a dual time-stepping integration algorithm has been adopted to solve the governing equations and associated boundary conditions.
Culick, F. E. C., Roh, T. S.
core  

Flow and Flame Mechanisms for Swirl-Stabilized Combustors

Aerospace
This article reviews the physical and chemical mechanisms associated with unsteady swirl-stabilized partially or fully lean premixed combustion.
Paul Palies
doaj   +1 more source

Approximate analysis and stability of pressure oscillations in ramjets [PDF]

, 1985
This paper summarizes work accomplished during the past five years on analysis of stability related to recent experimental results on combustion instabilities in dump combustors.
Culick, F. E. C., Daily, J. W., Paparizos, L., Reardon, F., Yang, V., Zukoski, E. E.   +5 more
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Numerical calculations of pressure oscillations in a side-dump ramjet engine [PDF]

, 1984
Pressure oscillations in a side-dump ramjet engine have been studied, using a one-dimensional numerical analysis. The engine is treated in two parts; the inlet section, including a region of two-phase flow downstream of fuel injection, and a dump ...
Culick, F. E. C., Yang, V.
core