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Aaron W. Costall
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Journal Articles

Aerodynamic Optimization of the High Pressure Turbine and Interstage Duct in a Two-Stage Air System for a Heavy-Duty Diesel Engine

Uswah B. Khairuddin, Aaron W. Costall
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2018, 140(5): 052801.
Paper No: GTP-17-1239
DOI: https://doi.org/10.1115/1.4038024
Published Online: November 28, 2017
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Topics: Computational fluid dynamics, Design, Ducts, Optimization, Turbines, Wheels
Proceedings Papers

Aerodynamic Optimization of High Pressure Turbine and Interstage Duct in a Two-Stage Air System for a Heavy-Duty Diesel Engine

Uswah Khairuddin, Aaron W. Costall
Proc. ASME. GT2017, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T26A006, June 26–30, 2017
Paper No: GT2017-63370
DOI: https://doi.org/10.1115/GT2017-63370
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Topics: Diesel engines, Ducts, High pressure (Physics), Optimization, Turbines, Wheels, Design, Algorithms, Carbon dioxide, Computational fluid dynamics
Proceedings Papers

Radial Turboexpander Optimization Over Discretized Heavy-Duty Test Cycles for Mobile Organic Rankine Cycle Applications

Miles C. Robertson, Aaron W. Costall, Peter J. Newton, Ricardo F. Martinez-Botas
Proc. ASME. GT2016, Volume 3: Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T25A007, June 13–17, 2016
Paper No: GT2016-56754
DOI: https://doi.org/10.1115/GT2016-56754
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Topics: Cycles, Optimization, Organic Rankine cycle, Emissions, Design, Geometry, Turbines, Flow (Dynamics), Construction equipment, Diesel engines
Proceedings Papers

Influence of Geometrical Parameters on Aerodynamic Optimization of a Mixed-Flow Turbocharger Turbine

Uswah Khairuddin, Aaron W. Costall, Ricardo F. Martinez-Botas
Proc. ASME. GT2015, Volume 2C: Turbomachinery, V02CT42A002, June 15–19, 2015
Paper No: GT2015-42053
DOI: https://doi.org/10.1115/GT2015-42053
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Topics: Flow (Dynamics), Optimization, Turbines, Turbochargers, Geometry, Computational fluid dynamics, Genetic algorithms, Blades, Turbine blades
Proceedings Papers

Assessment of Partial-Admission Characteristics in Twin-Entry Turbine Pulse Performance Modelling

Meng Soon Chiong, Srithar Rajoo, Alessandro Romagnoli, Aaron W. Costall, Ricardo F. Martinez-Botas
Proc. ASME. GT2015, Volume 2C: Turbomachinery, V02CT42A022, June 15–19, 2015
Paper No: GT2015-42687
DOI: https://doi.org/10.1115/GT2015-42687
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Topics: Modeling, Turbines, Flow (Dynamics), Cycles, Engines, Exhaust systems, Test facilities
Proceedings Papers

Assessment of Cycle Averaged Turbocharger Maps Through One Dimensional and Mean-Line Coupled Codes

Meng Soon Chiong, Srithar Rajoo, Aaron W. Costall, Wan Saiful-Islam Bin Wan Salim, Alessandro Romagnoli, Ricardo F. Martinez-Botas
Proc. ASME. GT2013, Volume 6C: Turbomachinery, V06CT40A026, June 3–7, 2013
Paper No: GT2013-95906
DOI: https://doi.org/10.1115/GT2013-95906
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Topics: Cycles, Turbochargers, Engines, Turbines, Emissions, Flow (Dynamics), Internal combustion engines, Modeling, Turbocharged engines, Carbon dioxide
Proceedings Papers

Electric Turbo Assist as an Enabler for Engine Downspeeding

Aaron W. Costall, Radoslav Ivanov, Thomas P. F. Langley
Proc. ASME. GT2012, Volume 5: Manufacturing Materials and Metallurgy; Marine; Microturbines and Small Turbomachinery; Supercritical CO2 Power Cycles, 511-521, June 11–15, 2012
Paper No: GT2012-68246
DOI: https://doi.org/10.1115/GT2012-68246
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Topics: Engines, Turbochargers, Cycles, Emissions, Fuels, Calibration, Degrees of freedom, Exhaust gas recirculation, Exhaust systems, Fuel consumption
Journal Articles

Pulse Performance Modeling of a Twin Entry Turbocharger Turbine Under Full and Unequal Admission

Aaron W. Costall, Robert M. McDavid, Ricardo F. Martinez-Botas, Nicholas C. Baines
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. April 2011, 133(2): 021005.
DOI: https://doi.org/10.1115/1.4000566
Published Online: October 19, 2010
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Topics: Flow (Dynamics), Modeling, Turbines, Turbochargers, Pressure, Calibration, Diesel engines, Rotors
Proceedings Papers

Pulse Performance Modeling of a Twin Entry Turbocharger Turbine Under Full and Unequal Admission

Aaron W. Costall, Robert M. McDavid, Ricardo F. Martinez-Botas, Nicholas C. Baines
Proc. ASME. GT2009, Volume 7: Turbomachinery, Parts A and B, 1255-1266, June 8–12, 2009
Paper No: GT2009-59406
DOI: https://doi.org/10.1115/GT2009-59406
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Topics: Modeling, Turbines, Turbochargers, Flow (Dynamics), Simulation, Cycles, Diesel engines, Dynamometers, Eddies (Fluid dynamics), Eddy currents (Electricity)