Turbulent Bubbly Flow in a Vertical Pipe Computed By an Eddy-Resolving Reynolds Stress Model

Abstract

Turbulent incompressible bubbly flow in a vertical pipe in a Reynolds number range is studied computationally by using second-moment closure models. A corresponding instability sensitive eddy-resolving Reynolds stress model is applied in addition to the conventional Reynolds averaged Navier-Stokes approach. The two-phase flow computations are performedby utilizing an Eulerian two-fluid model. The numerical results are compared with available experimental data and data from Direct Numerical Simulation. The implementations of the described models and the computations are done in the numerical code OpenFOAM(registered trademark) .

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 19, 2014
Accession Number
AD1006433

Entities

People

  • M. Ullrich
  • R. Maduta
  • S. Jakirlic

Organizations

  • Technical University of Darmstadt

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boltzmann Equation
  • Computational Fluid Dynamics
  • Equations
  • Flow
  • Fluid Mechanics
  • Grids
  • Liquid Phases
  • Mechanical Properties
  • Mechanics
  • Momentum Transfer
  • Pipe Flow
  • Pressure Distribution
  • Pressure Gradients
  • Reynolds Number
  • Stratified Fluids
  • Turbulence
  • Two Phase Flow

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Fluid Mechanics and Fluid Dynamics.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers