31 May 2021 to 4 June 2021
Europe/Berlin timezone

Towards HPC simulations of Billion-cell Reservoirs by Multiscale Mixed Methods

1 Jun 2021, 20:00
1h
Poster (+) Presentation (MS14) Uncertainty Quantification in Porous Media Poster +

Speaker

Roberto Ausas (University of Sao Paulo)

Description

A three dimensional parallel implementation of Multiscale Mixed Methods based on non-overlapping domain decomposition is proposed and its computational performance is assessed by means of numerical experiments. As a prototypical method the Multiscale Robin Coupled Method [1] is chosen and its implementation is explained in detail. Numerical results for problems ranging from millions up to more than 2 billion computational cells in highly heterogeneous anysotropic rock formations based on the SPE10 benchmark [2] are shown. The proposed implementation relies on direct solvers for both the local problems and the interface coupling system. It exhibits good weak and strong scalalability as compared against a state-of-the-art global fine grid solver based on Algebric Multigrid preconditioning [3] in single and two-phase flow problems.

Keywords: Porous media, Darcy's law, Two-phase flow, High Performance Computing,
Multiscale method, Domain Decomposition

References

[1] R. T. Guiraldello, R. F. Ausas, F. S. Sousa, F. Pereira, and G. C. Buscaglia. The multiscale Robin coupled method for flows in porous media. Journal of Computational Physics, 355:1–21, 2018.
[2] M. Christie and M. J. Blunt. Tenth SPE comparative solution project: a comparison of upscaling techniques. 2001. SPE Reservoir Simulation Symposium 2001.
[3] R. Falgout. Hypre user’s manual. http://www.llnl.gov/CASC/hypre, 2017. Accessed: 2020-11-30.

Time Block Preference Time Block C (18:00-21:00 CET)
Acceptance of Terms and Conditions Click here to agree

Primary authors

Roberto Ausas (University of Sao Paulo) Alfredo Jaramillo (USP, Brazil) Dr Rafael T. Guiraldello (University of São Paulo - São Carlos) Dr Stevens Paz Fabricio Sousa (University of Sao Paulo) Felipe Pereira (Mathematical Sciences Department, The University of Texas at Dallas, Richardson, TX, USA) Gustavo Buscaglia (University of Sao Paulo)

Presentation materials

There are no materials yet.