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Suryanarayana R. Pakalapati
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Proceedings Papers

Implications of Using Dual Number Derivatives With a Numerical Solution

Suryanarayana R. Pakalapati, Hayri Sezer, Ismail B. Celik
Proc. ASME. FEDSM2013, Volume 1A, Symposia: Advances in Fluids Engineering Education; Advances in Numerical Modeling for Turbomachinery Flow Optimization; Applications in CFD; Bio-Inspired Fluid Mechanics; CFD Verification and Validation; Development and Applications of Immersed Boundary Methods; DNS, LES, and Hybrid RANS/LES Methods, V01AT07A003, July 7–11, 2013
Paper No: FEDSM2013-16378
DOI: https://doi.org/10.1115/FEDSM2013-16378
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Topics: Computational fluid dynamics, Computer simulation, Computers, Diffusion (Physics), Equations, Finite volume methods, Machinery, Numerical analysis, Resolution (Optics), Sensitivity analysis
Proceedings Papers

Numerical Investigation of Rotating Detonation Combustion in Annular Chambers

Sergio Escobar, Suryanarayana R. Pakalapati, Ismail Celik, Donald Ferguson, Peter Strakey
Proc. ASME. GT2013, Volume 1A: Combustion, Fuels and Emissions, V01AT04A071, June 3–7, 2013
Paper No: GT2013-94918
DOI: https://doi.org/10.1115/GT2013-94918
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Topics: Combustion, Explosions, Waves, Engineering simulation, Simulation, Computational fluid dynamics, Pressure, Combustion chambers, Chemical reactions, Chemistry
Proceedings Papers

A Continuity Outlet Boundary Condition for the Lattice Boltzmann Method

Yasemin Vural, Suryanarayana R. Pakalapati, Ismail B. Celik
Proc. ASME. FEDSM2012, Volume 1: Symposia, Parts A and B, 1055-1063, July 8–12, 2012
Paper No: FEDSM2012-72337
DOI: https://doi.org/10.1115/FEDSM2012-72337
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Topics: Boundary-value problems, Lattice Boltzmann methods, Computational fluid dynamics, Engineering simulation, Flow (Dynamics), Simulation, Bifurcation, Blood vessels, Computer software, Pressure
Proceedings Papers

A Degradation Model for Degradation of Solid Oxide Fuel Cell Anodes due to Impurities in Coal Syngas

Fatma N. Cayan, Suryanarayana R. Pakalapati, Ismail Celik
Proc. ASME. FUELCELL2011, ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology, 429-438, August 7–10, 2011
Paper No: FuelCell2011-54613
DOI: https://doi.org/10.1115/FuelCell2011-54613
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Topics: Anodes, Coal, Solid oxide fuel cells, Syngas, Diffusion (Physics), Operating temperature, Ash, Calibration, Catalysts, Electrolytes
Proceedings Papers

Anode Structure Degradation Model for Planar-SOFC Configuration Under Fuel Gas Contaminants

Gulfam Iqbal, Suryanarayana R. Pakalapati, Francisco Elizalde-Blancas, Huang Guo, Ismail Celik, Bruce Kang
Proc. ASME. FUELCELL2010, ASME 2010 8th International Fuel Cell Science, Engineering and Technology Conference: Volume 2, 147-152, June 14–16, 2010
Paper No: FuelCell2010-33183
DOI: https://doi.org/10.1115/FuelCell2010-33183
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Topics: Anodes, Gaseous fuels, Solid oxide fuel cells, Fuels, Coal, Flow (Dynamics), Syngas, Thermomechanics, Durability, Electrolytes
Proceedings Papers

Direct Simulation of Mass Transport in a SOFC Cathode Using Microchannels

Jose A. Escobar, Suryanarayana R. Pakalapati, Jagannath R. Nanduri, Ismail B. Celik
Proc. ASME. ICNMM2009, ASME 2009 7th International Conference on Nanochannels, Microchannels and Minichannels, 329-336, June 22–24, 2009
Paper No: ICNMM2009-82205
DOI: https://doi.org/10.1115/ICNMM2009-82205
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Topics: Microchannels, Simulation, Solid oxide fuel cells, Electrodes, Energy generation, Gaussian distribution, Computational fluid dynamics, Computer software, Diffusion (Physics), Electrolytes
Proceedings Papers

A Phenomenological Model for Degradation of Solid Oxide Fuel Cell Anodes Due to Impurities in Coal Syngas

Fatma N. Cayan, Suryanarayana R. Pakalapati, Francisco Elizalde-Blancas, Ismail Celik
Proc. ASME. FUELCELL2009, ASME 2009 7th International Conference on Fuel Cell Science, Engineering and Technology, 641-647, June 8–10, 2009
Paper No: FuelCell2009-85177
DOI: https://doi.org/10.1115/FuelCell2009-85177
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Topics: Anodes, Coal, Solid oxide fuel cells, Syngas, Diffusion (Physics), Catalysts, Current density, Electrolytes, Fuels, Operating temperature
Proceedings Papers

Numerical Evaluation and Comparison of Different Reduced Mechanisms for Predicting the Performance of a SOFC Operating on Coal Syngas

Francisco Elizalde-Blancas, Suryanarayana R. Pakalapati, Jose A. Escobar-Vargas, Ismail B. Celik
Proc. ASME. FEDSM2008, Volume 1: Symposia, Parts A and B, 755-763, August 10–14, 2008
Paper No: FEDSM2008-55280
DOI: https://doi.org/10.1115/FEDSM2008-55280
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Topics: Coal, Solid oxide fuel cells, Syngas, Electrochemistry, Methane, Anodes, Atmospheric pressure, Computer simulation, Steam, Temperature
Proceedings Papers

On Modeling Multi-Component Diffusion Inside the Porous Anode of Solid Oxide Fuel Cells Using Fick’s Model

Fatma N. Cayan, Suryanarayana R. Pakalapati, Francisco Elizalde-Blancas, Ismail Celik
Proc. ASME. FUELCELL2008, ASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology, 377-386, June 16–18, 2008
Paper No: FuelCell2008-65236
DOI: https://doi.org/10.1115/FuelCell2008-65236
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Topics: Anodes, Diffusion (Physics), Modeling, Solid oxide fuel cells, Corrosion, Errors, Methane, Molten salt reactors, Simulation, Steam reforming
Proceedings Papers

A Modular Approach to Fuel Cell Modeling: Analysis of a SOFC Cathode

Ismail B. Celik, Randall S. Gemmen, Suryanarayana R. Pakalapati
Proc. ASME. IMECE2002, Advanced Energy Systems, 155-163, November 17–22, 2002
Paper No: IMECE2002-33181
DOI: https://doi.org/10.1115/IMECE2002-33181
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Topics: Fuel cells, Modeling analysis, Solid oxide fuel cells, Modeling, Current density, Electric fields, Electric potential, Manufacturing, Oxygen, Resolution (Optics)