Turbulent Kinetic Energy Equation
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. A Statistical Dynamic Model for the Turbulent Transport of Kinetic Energy in Shear Layers
ABSTRACT: Dynamic statistical equations for the turbulent fluxes of scalars and momentum in incompressible flows are derived after time wise integration of the equation for the oscillating transported property, decomposing the turbulent fluxes in terms representing distinct features of the main and fluctuating flow that influence the respective turbulent tra
J. Aerosp. Technol. Manag.. Publicado em: 07/06/2018
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2. UMA SOLUÇÃO PARA A EQUAÇÃO DA ENERGIA CINÉTICA TURBULENTA EMPREGANDO O MÉTODO DAS CARACTERÍSTICAS / A SOLUTION FOR THE TURBULENT KINETIC ENERGY EQUATION EMPLOYING THE METHOD OF CHARACTERISTICS
In this study, using the Method of Characteristics and numeric resources, presents a solution to the equation Spectral Density Evolution of Turbulent Kinetic Energy for a Convective Boundary Layer (CBL) in the morning. It presents three models for the evolution of spectral energy density. The first model, based on the assumption of a system of isotropic turb
Publicado em: 2009
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3. Implementação dos efeitos da não linearidade do tensor de Reynolds em modelos de turbulência baseados na hipótese de Boussinesq / Implementation of non linear effects of Reynolds tensor on turbulence models based on Boussinesq approximation
The main goal of this work is to implement and evaluate the correction proposed by Spalart [53] on turbulence models based on Boussinesq approximation. The objective of this correction is to capture non linear effects of Reynolds tensor, which are not correctly predicted and modeled by Boussinesq approximation. In his work, Spalart [53] proposed the correcti
Publicado em: 2009
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4. The carreau-yasuda fluids: a skin friction equation for turbulent flow in pipes and kolmogorov dissipative scales
In this work the turbulent flow of the Non-Newtonian Carreau-Yasuda fluid will be studied. A skin friction equation for the turbulent flow of Carreau-Yasuda fluids will be derived assuming a logarithmic behavior of the turbulent mean velocity for the near wall flow out of the viscous sub layer. An alternative near wall characteristic length scale which takes
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2007-06
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5. 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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6. Modelo matemático para análise dos efeitos da turbulência em escoamentos bifásicos fluido - partícula / Mathematical model for turbulence effect analysis in two-phase flow type fluid-particle
In this work the effect of particles or drops, which constitute the dispersed phase, is analyzed in the turbulence of the continuous phase (gas or liquid). This type of analysis, which is known as turbulence modulation, searchs to get the variations in the terms sources of generation of kinetic energy provoked by the interaction of particles with the continu
Publicado em: 2006
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7. TURBULENCE IN WALL REGION MODELING / ASPECTOS DA MODELAGEM DA TURBULÊNCIA NA REGIÃO DA PAREDE
This thesis presents the results of research work aiming at low Reynolds turbulence modeling. For an stablished boundary layer turbulent low Reynolds flow in the viscous layer near a wall was characterized based on experimental data and empirical polynomials. On this basis an analysis of the distribuition of the mean values in the near-wall region was perfor
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/01/1998