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Aleksandr Obabko
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Proceedings Papers

Validation and Development of DNS Database for Low Prandtl Numbers in Rod Bundle

Jonathan K. Lai, Elia Merzari, Yassin A. Hassan, Aleksandr Obabko
Proc. ASME. AJKFluids2019, Volume 2: Computational Fluid Dynamics, V002T02A057, July 28–August 1, 2019
Paper No: AJKFluids2019-5036
DOI: https://doi.org/10.1115/AJKFluids2019-5036
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Topics: Databases, Fuel rods, Heat transfer, Flow (Dynamics), Liquid metals, Prandtl number, Thermal diffusivity, Channel flow, Computer simulation, Fluids
Proceedings Papers

Large Eddy Simulations of a Coolant Flow in Spacer Grid Fuel Assemblies With a Spectral Element Solver

Haomin Yuan, Vakhtang Makarashvili, Elia Merzari, Aleksandr Obabko, Yiqi Yu
Proc. ASME. ICONE26, Volume 8: Computational Fluid Dynamics (CFD); Nuclear Education and Public Acceptance, V008T09A029, July 22–26, 2018
Paper No: ICONE26-81892
DOI: https://doi.org/10.1115/ICONE26-81892
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Topics: Coolants, Flow (Dynamics), Fuels, Large eddy simulation, Manufacturing, Computational fluid dynamics, Fuel rods, Engineering simulation, Geometry, Simulation
Proceedings Papers

Analysis of Pressure Field on Wire-Wrapped Pin Bundle Surface for Concerns of FSI

Landon Brockmeyer, Aleksandr Obabko, Elia Merzari, Yassin Hassan
Proc. ASME. FEDSM2018, Volume 1: Flow Manipulation and Active Control; Bio-Inspired Fluid Mechanics; Boundary Layer and High-Speed Flows; Fluids Engineering Education; Transport Phenomena in Energy Conversion and Mixing; Turbulent Flows; Vortex Dynamics; DNS/LES and Hybrid RANS/LES Methods; Fluid Structure Interaction; Fluid Dynamics of Wind Energy; Bubble, Droplet, and Aerosol Dynamics, V001T08A008, July 15–20, 2018
Paper No: FEDSM2018-83521
DOI: https://doi.org/10.1115/FEDSM2018-83521
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Topics: Fluid structure interaction, Pressure, Wire, Pins (Engineering), Fuels, Flow (Dynamics), Deflection, Fluctuations (Physics), Vibration, Deformation
Proceedings Papers

Accelerating the High-Fidelity Simulation of Turbulence: Ensemble Averaging

Vakhtang Makarashvili, Elia Merzari, Aleksandr Obabko, Paul Fischer, Andrew Siegel
Proc. ASME. FEDSM2016, Volume 1B, Symposia: Fluid Mechanics (Fundamental Issues and Perspectives; Industrial and Environmental Applications); Multiphase Flow and Systems (Multiscale Methods; Noninvasive Measurements; Numerical Methods; Heat Transfer; Performance); Transport Phenomena (Clean Energy; Mixing; Manufacturing and Materials Processing); Turbulent Flows — Issues and Perspectives; Algorithms and Applications for High Performance CFD Computation; Fluid Power; Fluid Dynamics of Wind Energy; Marine Hydrodynamics, V01BT26A003, July 10–14, 2016
Paper No: FEDSM2016-7853
DOI: https://doi.org/10.1115/FEDSM2016-7853
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Topics: Simulation, Turbulence, Transients (Dynamics), Computational fluid dynamics, Architecture, Flow (Dynamics), Algorithms, Reynolds-averaged Navier–Stokes equations, Separation (Technology), Artificial neural networks
Proceedings Papers

Flow Destabilization and Heat Transfer Augmentation in an Array of Grooved Passages With Developing Flow

John Akerley, Miles Greiner, Aleksandr Obabko, Paul Fischer
Proc. ASME. HT2012, Volume 1: Heat Transfer in Energy Systems; Theory and Fundamental Research; Aerospace Heat Transfer; Gas Turbine Heat Transfer; Transport Phenomena in Materials Processing and Manufacturing; Heat and Mass Transfer in Biotechnology; Environmental Heat Transfer; Visualization of Heat Transfer; Education and Future Directions in Heat Transfer, 651-658, July 8–12, 2012
Paper No: HT2012-58528
DOI: https://doi.org/10.1115/HT2012-58528
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Topics: Flow (Dynamics), Heat transfer, Engineering simulation, Simulation, Channel flow, Friction, Reynolds number, Three-dimensional models
Proceedings Papers

Proposed Experiment for Validation of CFD Methods for Advanced SFR Design: Upper Plenum Thermal Striping and Stratification

W. David Pointer, Stephen Lomperski, Paul Fischer, Aleksandr Obabko
Proc. ASME. ICONE17, Volume 5: Fuel Cycle and High and Low Level Waste Management and Decommissioning; Computational Fluid Dynamics (CFD), Neutronics Methods and Coupled Codes; Instrumentation and Control, 599-611, July 12–16, 2009
Paper No: ICONE17-75740
DOI: https://doi.org/10.1115/ICONE17-75740
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Topics: Computational fluid dynamics, Design, Sodium fast reactors, Simulation, Turbulence, Physics, Resolution (Optics), Reynolds-averaged Navier–Stokes equations, Safety, Coolants