Massively Parallel Boundary Integral Element Method Modeling of Particles in a Low Reynolds Number Mewtonian Fluid Flow

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The analysis of many complex multiphase fluid flow systems is based on a scale decoupling procedure. At the macroscale continuum models are used to perform large-scale simulations. At the mesoscale statistical homogenization theory is used to derive continuum models based on representative volume elements (RVEs). At the microscale small-scale features, such as interfacial properties, are analyzed to be incorporated into mesoscale simulations. In this research mesoscopic simulations of hard particles suspended in a Newtonian fluid undergoing nonlinear shear flow are performed using a boundary element method. To obtain an RVE at higher concentrations, several hundred particles are included in the ... continued below

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12 p.

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INGBER,M.S.; SUBIA,SAMUEL R. & MONDY,LISA ANN January 18, 2000.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM, and Livermore, CA (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

The analysis of many complex multiphase fluid flow systems is based on a scale decoupling procedure. At the macroscale continuum models are used to perform large-scale simulations. At the mesoscale statistical homogenization theory is used to derive continuum models based on representative volume elements (RVEs). At the microscale small-scale features, such as interfacial properties, are analyzed to be incorporated into mesoscale simulations. In this research mesoscopic simulations of hard particles suspended in a Newtonian fluid undergoing nonlinear shear flow are performed using a boundary element method. To obtain an RVE at higher concentrations, several hundred particles are included in the simulations, putting considerable demands on the computational resources both in terms of CPU and memory. Parallel computing provides a viable platform to study these large multiphase systems. The implementation of a portable, parallel computer code based on the boundary element method using a block-block data distribution is discussed in this paper. The code employs updated direct-solver technologies that make use of dual-processor compute nodes.

Physical Description

12 p.

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OSTI as DE00750322

Medium: P; Size: 12 pages

Source

  • HPC 2000, Maui, HI (US), 01/26/2000--01/28/2000

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  • Report No.: SAND2000-0146C
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 750322
  • Archival Resource Key: ark:/67531/metadc708834

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  • January 18, 2000

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • April 6, 2017, 8:22 p.m.

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INGBER,M.S.; SUBIA,SAMUEL R. & MONDY,LISA ANN. Massively Parallel Boundary Integral Element Method Modeling of Particles in a Low Reynolds Number Mewtonian Fluid Flow, article, January 18, 2000; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc708834/: accessed November 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.