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Ozgur Cekmer

Ozgur Cekmer NERSC
Ozgur Cekmer, Ph.D.
Postdoctoral Researcher
NESAP for Simulations

Biographical Sketch

Ozgur Cekmer is a NERSC Exascale Science Applications Postdoctoral Fellow (NESAP) for Simulations since January 2020. He is working in ASGarD - Adaptive Sparse Grid Discretization project.

Academic Degrees

PhD | 2015 | University of Tennessee-Knoxville (UTK), USA | Mechanical Engineering

Interdisciplinary Graduate Minor | 2015 | UTK, USA | Computational Science

MS | 2011 | Izmir Institute of Technology, Izmir, Turkey | Energy Engineering

BS | 2008 | Hacettepe University, Ankara, Turkey | Nuclear Engineering

Occupational Background

Research Software Developer | November 2017 - November 2018 | The University of Sydney, School of Geosciences, Sydney, NSW, Australia

- Worked in a 1-year project, which was aimed to develop a parallel landscape evolution model.

Postdoctoral Research Associate | July 2015 - July 2017 | Oak Ridge National Laboratory, Computer Science and Mathematics Division, Oak Ridge, TN, USA

- Worked in the Plasma-Surface Interactions (PSI) SciDAC project.

- The project was focused on predictive modeling of the material damage in tungsten wall material of the plasma divertor in a Tokamak fusion reactor system.

- His focus was on uncertainty quantification (UQ) analysis for the main code using a Bayesian inference model.

Graduate Teaching/Research Assistant | March 2012 - June 2015 | University of Tennessee - Knoxville, Mechanical, Aerospace, and Biomedical Engineering Department, TN, USA

- Worked at Electrochemical Energy Storage and Conversion Laboratory at University of Tennessee, Knoxville, as a graduate/research assistant in Investigation of Micro- and Macro- Scale Transport Processes for Improved Fuel Cell Performance project.

- Computational Work: His focus was on single- and multi-phase mass transfer simulation through the gas diffusion layer (GDL) of a polymer electrolyte fuel cell (PEFC).

- Experimental Work: Measurements of effective diffusion coefficient of oxygen in porous PEFC - GDL materials.

Graduate Teaching/Research Assistant | December 2009 - August 2011 | Izmir Institute of Technology, Mechanical Engineering Department, Izmir, Turkey

- Worked in a project about heat transfer enhancement in a solar air heater using porous media.

- His focus was on analytical modeling for heat and momentum transfer in partially and fully porous channels.

Presentations

CEKMER, O. (2016). Uncertainty Quantification Analysis for Xolotl, Annual Quest Meeting - Sandia National Laboratories.

CEKMER, O. (2015). Uncertainty Quantification Analysis for Xolotl, UQ Conference - Institute for Advanced Computational Science, Stony Brook University, Poster Presentation.

Publications

CEKMER, O., SARGSYAN, K., BLONDEL S., NAJM, H., BERNHOLDT, D.E., WIRTH, B.D. (2018), Uncertainty quantification for incident helium flux in plasma-exposed tungsten, International Journal for Uncertainty Quantification (Q2) , 8(5):429–446

CEKMER, O., MOBEDI, M., OZERDEM, B., POP, I. (2016), Effect of an inserted porous layer into a channel on heat transfer and pressure drop, Journal of Porous Media (Q2), 19: 65-82.

CEKMER, O., UM, S., MENCH M. M. (2016), A combined path-percolation – Lattice- Boltzmann model applied to multiphase mass transfer in porous media, International Journal of Heat and Mass Transfer (Q1), 93: 257-272.

CEKMER, O., UM, S., MENCH M. M. (2015), Application of Path-Percolation Theory and Lattice-Boltzmann Method to Investigate Structure-Property Relationship in Porous Media, International Journal of Heat and Mass Transfer (Q1), 86: 101-112

CEKMER, O., LAMANNA, J. M., MENCH M. M.. (2013). Alternative analytical analysis for improved Loschmidt diffusion cell, International Journal of Heat and Mass Transfer (Q1), 65: 883-892.

CEKMER, O., MOBEDI, M., OZERDEM, B., POP, I. (2012). Fully developed forced convection in a parallel plate channel with a porous layer at center, Transport in Porous Media (Q1), 93: 179–201.

CEKMER, O., MOBEDI, M., OZERDEM, B., POP, I. (2011). Fully developed forced convection heat transfer in a porous channel with asymmetric heat flux boundary conditions, Transport in Porous Media (Q1), 90: 791-806

MOBEDI, M., CEKMER, O., POP, I. (2010). Forced convection heat transfer inside an anisotropic porous channel with oblique principal axes: Effect of viscous dissipation, International Journal of Thermal Sciences (Q1), 49: 1984-1993.

Theses

Ph.D. Thesis

Cekmer, O. (2015) Application of Path-Percolation Theory and Lattice-Boltzmann Method on Transport Phenomena in Inhomogeneous Porous Media, Mechanical, Aerospace, and Biomedical Engineering Department, University of Tennessee, Knoxville (https://trace.tennessee.edu/cgi/viewcontent.cgi?article=4699&context=utk_graddiss)

M.Sc. Thesis

Cekmer, O. (2011) A theoretical study on enhancement of heat transfer in a solar air heater collector by using metallic porous structures, Energy Engineering, Izmir Institute of Technology. (https://openaccess.iyte.edu.tr/xmlui/bitstream/handle/11147/3144/T000954.pdf?sequence=1&isAllowed=y)