scholarly journals Validation analyses of advanced turbulence model approaches for stratified two-phase flows

2015 ◽  
Author(s):  
M. Benz ◽  
T. Schulenberg
Keyword(s):  
Turbulence Model ◽  
Two Phase Flows ◽  
Two Phase

A two-equation turbulence model for two-phase flows

1983 ◽  
Vol 26 (4) ◽  
pp. 931 ◽  
Author(s):  
S. E. Elghobashi
Keyword(s):  
Turbulence Model ◽  
Two Phase Flows ◽  
Two Phase

scholarly journals A Two-Fluid Turbulence Model for Gas-Solid Two-Phase Flows.

1997 ◽  
Vol 30 (3) ◽  
pp. 526-534 ◽  
Author(s):  
Yunliang Wang ◽  
Satoru Komori ◽  
Myung Kyoon Chung
Keyword(s):  
Turbulence Model ◽  
Two Phase Flows ◽  
Two Phase ◽  
Fluid Turbulence ◽  
Two Fluid

Scale-up Technique of Slurry Pipelines—Part 2: Numerical Integration

1986 ◽  
Vol 108 (4) ◽  
pp. 278-285
Author(s):  
M. C. Roco ◽  
S. Mahadevan
Keyword(s):  
Kinetic Energy ◽  
Numerical Integration ◽  
Finite Volume ◽  
Turbulence Model ◽  
Eddy Viscosity ◽  
Scale Up ◽  
Transport Equations ◽  
Convective Transport ◽  
Two Phase Flows ◽  
Two Phase

A kinetic energy turbulence model has been proposed for the computer flow simulation and scale-up of slurry pipelines (in Part 1 [1]). The numerical integration is performed by using a modified finite volume technique, with application to high-convective two-phase flows in two and three dimensions (in Part 2). The mixture kinetic energy and eddy viscosity turbulence models are compared. The one-equation eddy-viscosity turbulence model (εt - model) is formulated in Part 2 and applied for the multi-species particle slurry flow in cylindrical pipes. A modified finite volume technique is proposed for high convective transport equations, for one and two-phase flows. The integral formulation per volume yields surface and volume integrals, that are stored and counted only by interfaces using a multidimensional approach. The nonlinear distributions in volumes and on interfaces are approximated employing the derivatives in the normal and tangent directions to the bounding surfaces. Linear, analytical (upwind) and logarithmic laws of interpolations are considered for internal flows. The numerical approach was tested with good results for transport equations of momentum and various contaminants (solid particles, temperature, eddy-viscosity) in pipes. Experimental data for one and two-phase flows are compared to the integral finite volume predictions. The proposed finite volume technique can economically simulate complex flow situations encountered in the slurry pipeline scale-up applications.

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