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Generalization of a Heterogenous Multiscale Framework Coupling Discrete Microscale and Continuous Macroscale Physics in a Porous Medium

[+] Author Affiliations
Paul Delgado, Vinod Kumar

University of Texas at El Paso, El Paso, TX

Paper No. FEDSM2013-16033, pp. V01CT23A001; 7 pages
doi:10.1115/FEDSM2013-16033
From:
  • ASME 2013 Fluids Engineering Division Summer Meeting
  • Volume 1C, Symposia: Gas-Liquid Two-Phase Flows; Industrial and Environmental Applications of Fluid Mechanics; Issues and Perspectives in Automotive Flows; Liquid-Solids Flows; Multiscale Methods for Multiphase Flow; Noninvasive Measurements in Single and Multiphase Flows; Numerical Methods for Multiphase Flow; Transport Phenomena in Energy Conversion From Clean and Sustainable Resources; Transport Phenomena in Materials Processing and Manufacturing Processes; Transport Phenomena in Mixing; Turbulent Flows: Issues and Perspectives
  • Incline Village, Nevada, USA, July 7–11, 2013
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-5556-0
  • Copyright © 2013 by ASME

abstract

Analysis of physical processes in porous media is generally desired at the macroscopic level, though the processes themselves are fundamentally governed by microscopic constitutive relations. Direct numerical simulation of the macroscopic equations is prohibitively expensive in a computational sense for microscopic resolutions. The Heterogeneous Multiscale Framework offers an alternative formulation to incorporate the physics at multiple scales in an efficient manner. We expand upon a recent multiscale formulation of fluid flow in porous media to a more generalized multiscale scheme coupling continuous conservation laws at the macroscale and discrete constitutive relations at the microscale. We observe that the coupling assumption for fluid flow problems is sufficiently generalizable to steady state problems in heat diffusion and solid mechanics.

Copyright © 2013 by ASME

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