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Reduced-Order Modeling of Flow1 min read

by ESD News and Events on October 11, 2013

Energy Resources Program Area Geologic Carbon Sequestration Program Hydrogeology Department Research Highlight

Source:  Dan Hawkes

Inverse modeling involves repeated evaluations of forward models,
which can be computationally prohibitive for large numerical models. To
reduce the overall computational burden of these simulations, ESD’s
George Pau, Yingqi Zhang, and Stefan Finsterle recently studied the use
of reduced order models (ROMs) as numerical surrogates. Their paper
examines an input–output relational approach based on Gaussian process
regression (GPR). Among other findings, they observe that ROMs are more
accurate than the linear lookup tables with the same number of
high-fidelity simulations. They demonstrate how the use of a GPR-based
ROM in two many-query applications—uncertainty quantification and global
sensitivity analysis—significantly reduces the total computational
effort.

To read further, go to: http://link.springer.com/article/10.1007%2Fs10596-013-9349-z#page-1

Additional related publication: http://www.sciencedirect.com/science/article/pii/S0098300413002355

Citation: Pau, G.S.H., Y. Zhang, and S. Finsterle (2013), Reduced
order models for many-query subsurface flow applications. Computational
Geosciences
, DOI 10.1007/s10596-013-9349-z, 2013.

Funding: FE, NRAP, Office of Sequestration, Hydrogen, and Clean Coal Fuels

News & Events

EGD Postdoc Fellow Receives Young Researcher Presenter Award1 min read

January 21, 2021

Pramod Bhuvankar, an EGD postdoctoral fellow working with research scientist Abdullah Cihan, received a Young Researcher Presenter Award during the 2020 Computational Methods in Water Resources conference in December. His presentation, “Pore-scale simulations of permeability decline in porous media due to fines migration,” described a pore-scale CFD study of clay mobilization in porous media due…

Berkeley Lab Partners with International Collaborators in Geothermal Energy Research1 min read

January 20, 2021

  Scientists from the Energy Geosciences Division have begun working with European partners on three new geothermal research projects through the Department of Energy’s membership in GEOTHERMICA, a transnational consortium that combines the in-country financial resources and research expertise of 15 participating countries to demonstrate and validate novel concepts in geothermal energy use. This marks the…

EESA Senior Scientist Talks Earthquake Building Resilience1 min read

Berkeley Lab senior scientist David McCallen leads a subproject called Earthquake Sim, or EQSIM, for the DOE’s Energy Exascale Computing Project. He is also professor and director of the Center for Civil Engineering Earthquake Research in the Department of Civil and Environmental Engineering at the University of Nevada, Reno. McCallen recently spoke with Scott Gibson of…

EESA Scientist Coauthors New Comprehensive Guide on Removing CO2 from the Atmosphere2 min read

January 18, 2021

Berkeley Lab researchers are working on ways to sequester more carbon in soil, including through agricultural practices. (Credit: Berkeley Lab) Scientists say that any serious plan to address climate change should include carbon dioxide removal (CDR) technologies and policies, which makes the newly launched CDR Primer an especially vital resource, says Berkeley Lab scientist Margaret Torn, one…

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