An incompressible two-dimensional multiphase particle-in-cell model for dense particle flows

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A two-dimensional, incompressible, multiphase particle-in-cell (MP-PIC) method is presented for dense particle flows. The numerical technique solves the governing equations of the fluid phase using a continuum model and those of the particle phase using a Lagrangian model. Difficulties associated with calculating interparticle interactions for dense particle flows with volume fractions above 5% have been eliminated by mapping particle properties to a Eulerian grid and then mapping back computed stress tensors to particle positions. This approach utilizes the best of Eulerian/Eulerian continuum models and Eulerian/Lagrangian discrete models. The solution scheme allows for distributions of types, sizes, and density of particles, ... continued below

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104 p.

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Snider, D.M.; O`Rourke, P.J. & Andrews, M.J. June 1, 1997.

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  • Snider, D.M. SAIC, Albuquerque, NM (United States)
  • O`Rourke, P.J. Los Alamos National Lab., NM (United States)
  • Andrews, M.J. Texas A and M Univ., College Station, TX (United States). Dept. of Mechanical Engineering

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Description

A two-dimensional, incompressible, multiphase particle-in-cell (MP-PIC) method is presented for dense particle flows. The numerical technique solves the governing equations of the fluid phase using a continuum model and those of the particle phase using a Lagrangian model. Difficulties associated with calculating interparticle interactions for dense particle flows with volume fractions above 5% have been eliminated by mapping particle properties to a Eulerian grid and then mapping back computed stress tensors to particle positions. This approach utilizes the best of Eulerian/Eulerian continuum models and Eulerian/Lagrangian discrete models. The solution scheme allows for distributions of types, sizes, and density of particles, with no numerical diffusion from the Lagrangian particle calculations. The computational method is implicit with respect to pressure, velocity, and volume fraction in the continuum solution thus avoiding courant limits on computational time advancement. MP-PIC simulations are compared with one-dimensional problems that have analytical solutions and with two-dimensional problems for which there are experimental data.

Physical Description

104 p.

Notes

OSTI as DE97008004

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  • Other Information: PBD: Jun 1997

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  • Other: DE97008004
  • Report No.: LA--13280-MS
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/510351 | External Link
  • Office of Scientific & Technical Information Report Number: 510351
  • Archival Resource Key: ark:/67531/metadc689648

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • June 1, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Feb. 25, 2016, 7:44 p.m.

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Snider, D.M.; O`Rourke, P.J. & Andrews, M.J. An incompressible two-dimensional multiphase particle-in-cell model for dense particle flows, report, June 1, 1997; New Mexico. (digital.library.unt.edu/ark:/67531/metadc689648/: accessed October 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.