Coaxial Jets
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Noise Source Distribution of Coaxial Subsonic Jet-Short-Cowl Nozzle
ABSTRACT: The noise source distribution of a short-cowl coaxial jet operating at different velocity ratios is described in this work. This was motivated by an ongoing research about noise prediction of coaxial jets through Acoustic Analogy with purposes of industrial engine application. This research has been carried out between Universidade Federal de Uberl
J. Aerosp. Technol. Manag.. Publicado em: 2014-03
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2. Aeroacoustics of dual-stream jets with application to turbofan engines.
A Computational Aeroacoustics (CAA) and a novel semi-empirical model is developed for predicting the noise generated by the jet flow through dual stream (coaxial) nozzles, as found in modern turbofan engines. The acoustic source model was developed in a 2D and 3D framework, based on the Lilley s Equations, following the traditional MGBK method from NASA Lang
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/06/2009
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3. Aeroacoustics of dual-stream jets with application to turbofan engines.
A Computational Aeroacoustics (CAA) and a novel semi-empirical model is developed for predicting the noise generated by the jet flow through dual stream (coaxial) nozzles, as found in modern turbofan engines. The acoustic source model was developed in a 2D and 3D framework, based on the Lilley s Equations, following the traditional MGBK method from NASA Lang
Publicado em: 2009
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4. Numerical analysis of the turbulent coaxial jets / Análise numérica de jatos coaxiais turbulentos
The understanding of the jets behavior is of extreme importance in several practical applications in combustion and propulsion. Therefore, it becomes more and more important the detailed analysis of the parameters that affect the characteristics of this type of flow. This work presents a numerical study of the incompressible turbulent coaxial jets characteri
Publicado em: 2007
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5. Análise numérica de jatos coaxiais turbulentos / Numerical analysis of the turbulent coaxial jets
O entendimento do comportamento de jatos é de extrema importância em diversas aplicações práticas em combustão e propulsão, desse modo, torna-se cada vez mais necessário a realização de análises detalhadas dos parâmetros que influenciam as características deste tipo de escoamento. Este trabalho apresenta um estudo numérico das características
Publicado em: 2007
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6. Turbulent heat transfer and fluid flow in ducts of gradually varying cross section.
This works presents numerical predictions for the flow and temperature fields formed by two coaxial streams confined in a duct having a gradually varying cross section segment. The well-known marching-forward method of Patankar-Spalding was used for sweepingthe computational domain. The standard k-e model was applied for handling turbulence. Computations are
Publicado em: 1999