Bluff Body
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Large Eddy Simulation of Bluff Body Stabilized Turbulent Premixed Flame
ABSTRACT: A turbulent reacting flow in a channel with an obstacle was simulated computationally with large eddy simulation turbulence modeling and the Xi turbulent combustion model for premixed flame. The numerical model was implemented in the open source software OpenFoam. Both inert flow and reactive flow simulations were performed. In the inert flow, comp
J. Aerosp. Technol. Manag.. Publicado em: 2013-06
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2. Investigação experimental e analítica do escoamento ao redor de cilindro circular com supressores de VIV. / Experimental and analytical investigation of the flow around circular cylinder with VIV suppressors.
The fluid flow around bluff bodies is one of the main problems in fluid mechanics. The investigations of this phenomenon are based on analytical, numerical and experimental techniques. Each technique presents advantages and disadvantages, being impossible the comprehensive characterization of the flow though only one technique for the majority of body geomet
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/09/2011
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3. Novo sensor de vazão de fluidos com foco em aplicações biomedicas / New fluid flow sensor aimed at biomedical applications
Spirometer is a device that evaluates pulmonary ventilation. This paper presents a preliminary study of a new electromechanical sensor, focused on the biomedical application of spirometry. The sensor is composed of a bluff body positioned inside a tube trough a hole, being a part of the body inside and another part outside of the tube, and an accelerometer p
Publicado em: 2009
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4. DEVELOPMENT OF A NATURAL GAS BURNER FOR THE STUDIES OF COMBUSTION IN TURBULENT FLOWS / DESENVOLVIMENTO DE UM QUEIMADOR DE GÁS NATURAL PARA ESTUDOS DA COMBUSTÃO EM ESCOAMENTOS TURBULENTOS
This work presents an experimental study of chemically inert and reactive turbulent flows in a Bluff-Body burner. The main objective is the characterization of the flow through of the measurement of instantaneous velocity fields by using non intrusive optical techniques. The techniques employed were Laser Doppler Velocimetry (LDV) and Particle Image Velocime
Publicado em: 2006
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5. Estudo do número de Strouhal em função do número de Reynolds em um anteparo triangular utilizando a técnica da análise tempo-freqüência / Study of the number of Strouhal in function of the Reynolds number in a triangular bluff body using the technique of the analysis time-frequency
Neste trabalho simulou-se o escoamento do fluxo de ar em um tubo, com um anteparo de formato triangular com arestas cortantes, posicionado no centro do tubo. O objetivo do estudo é a análise do comportamento do número de Strouhal em função do número de Reynolds. Para isto, foi utilizada a técnica da análise tempo-freqüência, baseada na transformada
Publicado em: 2006