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Applied Numerical Algorithms Group

Oscar Antepara

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Oscar Antepara
Postdoctoral Scholar

I am a postdoctoral scholar in the Applied Numerical Algorithms Group in the Computational Research Division of the Computing Sciences Directorate at the Lawrence Berkeley National Laboratory.

My expertise lies in the development, implementation, and analysis of numerical methods related to computational fluid dynamics using high-performance computing (HPC) systems. Before joining ANAG, I was a postdoctoral scholar in CCSE at LBNL where I was working on MFIX-Exa, a new CFD-DEM code developed by the National Energy Technology Laboratory and Lawrence Berkeley National Laboratory as part of the U.S. Department of Energy's Exascale Computing Project.

I got my Ph.D. in Engineering from the Technical University of Catalonia-BarcelonaTech (UPC) in 2019, where my research focused on developing adaptive mesh refinement algorithms for turbulent and multiphase flows.

Publications

O. Antepara, N. Balcázar, A. Oliva. Tetrahedral adaptive mesh refinement for two-phase flows using conservative level-set method. International Journal for Numerical Methods in Fluids, 2020https://doi.org/10.1002/fld.4893

N. Balcázar, O. Antepara, J. Rigola, A. Oliva. A level-set model for mass transfer in bubbly flows. International Journal of Heat and Mass Transfer,  2019, 138:335-356. https://doi.org/10.1016/j.ijheatmasstransfer.2019.04.008.

O. Antepara, N. Balcázar, J. Rigola, A. Oliva. Numerical study of rising bubbles with path instability using conservative level-set and adaptive mesh refinement. Computers and Fluids, 2019, 187:83-97. https://doi.org/10.1016/j.compfluid.2019.04.013

F. Favre, O. Antepara, C. Oliet, O. Lehmkuhl, C.D. Pérez-Segarra. An immersed boundary method to conjugate heat transfer problems in complex geometries. Application to an automotive antenna. Applied Thermal Engineering, 2019, 148:907-928. https://doi.org/10.1016/j.applthermaleng.2018.11.099

E. Schillaci, O. Antepara, N. Balcázar, J. Rigola, A. Oliva. A numerical study of liquid atomization regimes by means of conservative level-set simulations. Computers and Fluids, 2019, 179:137-149. https://doi.org/10.1016/j.compfluid.2018.10.017

E. Schillaci, L. Jofre, N. Balcázar, O. Antepara, A. Oliva. A low-dissipation convection scheme for the stable discretization of turbulent interfacial flow. Computers and Fluids, 2017, 153:102-117. https://doi.org/10.1016/j.compfluid.2017.05.009

 O. Antepara, O. Lehmkuhl, R. Borrell, J. Chiva, A. Oliva. Parallel adaptive mesh refinement for large-eddy simulations of turbulent flows. Computers and Fluids, 2015, 110:48-61. https://dx.doi.org/10.1016/j.compfluid.2014.09.050