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Computational upscaling of inertia effects from porescale to mesoscale

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  • This paper is included in the Proceedings, Part 1, of the International Conference on Computational Science 2009 (ICCS 2009) held in Baton Rouge, LA, USA, May 25-27, 2009.
  • We propose algorithms for computational upscaling of flow from porescale (microscale) to lab scale (mesoscale). In particular, we solve Navier-Stokes equations in complex pore geometries and average their solutions to derive properties of flow relevant at lab scale such as permeability and inertia coefficients. We discuss two variants of tra-ditional discretizations: a simple algorithm which works well in periodic isotropic media and can be used when coarse approximations are needed, and a more complex one which is well suited for nonisotropic geometries. Convergence of solutions and averaging techniques are major concerns but these can be relaxed if only mesoscopic parameters are needed. The project is a proof-of-concept computational laboratory for porous me-dia which delivers data needed for mesoscale simulations by performing microscale computational simulations.
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  • Peszyńska M., Trykozko A., Augustson K. (2009) Computational Upscaling of Inertia Effects from Porescale to Mesoscale. In: Allen G., Nabrzyski J., Seidel E., van Albada G.D., Dongarra J., Sloot P.M.A. (eds) Computational Science – ICCS 2009. ICCS 2009. Lecture Notes in Computer Science, vol 5544. Springer, Berlin, Heidelberg
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  • Baton Rouge, LA, USA
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  • The work of Peszynska and Augustson was partially supported from NSF grant 0511190 and DOE grant 98089.
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