K Epsilon Turbulence Modeling
Mostrando 1-4 de 4 artigos, teses e dissertações.
-
1. Estratégias "upwind" e modelagem k-epsilon para simulação numérica de escoamentos com superfícies livres em altos números de Reynolds / Upwind strategies and k-epsilon modeling for numerical simulation of free surface flow at high Reynolds numbers
This work is devoted to the analysis and implementation of modern high-order upwind schemes and the standard k-epsilon turbulence model into the Freeflow-2D; a finite difference integrated environment for the numerical simulation of incompressible free surface flow problems. The purpose of this study is the two-dimensional simulation of high-Reynolds incompr
Publicado em: 2005
-
2. The phase distribution of upward co-current bubbly flows in a vertical square channel
In this work one shows experimental data and numerical results of the void fraction distribution in vertical upward air-water bubbly flows in a square cross-section channel. To measure the void fraction distribution one used a single wire conductive probe. The averaged void fraction ranged from 3.3% to 15%; the liquid and the gas superficial velocities varie
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2004-09
-
3. NUMERICAL SIMULATION OF A PROCESS SEPARATOR FOR OIL AND WATER / SIMULAÇÃO NUMÉRICA DE UM FLOTADOR PARA SEPARAÇÃO DE ÓLEO DA ÁGUA
This work refers to an application for the treatment of produced water in oil and gas production platforms. It focuses on the analysis of flotation cells design and geometry influence in the oil-water separation process, in order to optimize their performance. Examples of application for the simulation tool are: internal retrofitting of existing equipments a
Publicado em: 2003
-
4. Modeling of turbulent flow through radial diffuser
The work considers the modeling of turbulent flow in radial diffuser with axial feeding. Due to its claimed capability to predict flow including features such as separation, curvature and adverse pressure gradient, the RNG k-epsilon model of Orzag et al. (1993) is applied in the present analysis. The governing equations are numerically solved using the finit
Journal of the Brazilian Society of Mechanical Sciences. Publicado em: 2000