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Ricardo F. Martinez-Botas
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Journal Articles

Supercritical Carbon Dioxide Shock Behaviour Near The Critical Point

Accepted Manuscript
Jinhong Wang, Teng Cao, Ricardo F. Martinez-Botas
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
Publisher: ASME
J. Eng. Gas Turbines Power.
Paper No: GTP-23-1414
https://doi.org/10.1115/1.4063384
Published Online: September 8, 2023
View Article titled, Supercritical Carbon Dioxide Shock Behaviour Near The Critical Point
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Topics: Shock (Mechanics), Supercritical carbon dioxide, Fluids, Carbon dioxide, Algorithms, Design, Entropy, Equations of state, Errors, Mach number
Journal Articles

Compressor Stability at Pulsating Condition Via Gas Dynamics Responses Analysis

Mengying Shu, Bijie Yang, Mingyang Yang, Ricardo F. Martinez-Botas, Weilin Zhuge
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2022, 144(2): 021017.
Paper No: GTP-21-1051
https://doi.org/10.1115/1.4052664
Published Online: December 3, 2021
View Article titled, Compressor Stability at Pulsating Condition Via Gas Dynamics Responses Analysis
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Topics: Compressors, Surges, Stability, Transients (Dynamics), Flow (Dynamics), Oscillations
Journal Articles

Three-Dimensional Computational Loss Analysis of a Compressor for Heavy Duty Truck Engine Turbochargers

Matthias Abel, Ricardo F. Martinez-Botas, Michael Wöhr, Markus Müller, Johannes Leweux
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2020, 142(4): 041013.
Paper No: GTP-19-1405
https://doi.org/10.1115/1.4044997
Published Online: February 3, 2020
View Article titled, Three-Dimensional Computational Loss Analysis of a Compressor for Heavy Duty Truck Engine Turbochargers
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Topics: Compressors, Entropy, Flow (Dynamics), Impellers, Turbochargers, Diffusers, Computational fluid dynamics, Friction, Engines
Proceedings Papers

Development and Commissioning of a Blowdown Facility for Dense Gas Vapours

Miles C. Robertson, Peter J. Newton, Tao Chen, Ricardo F. Martinez-Botas
Proc. ASME. GT2019, Volume 3: Coal, Biomass, Hydrogen, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T28A002, June 17–21, 2019
Paper No: GT2019-91609
https://doi.org/10.1115/GT2019-91609
View Paper titled, Development and Commissioning of a Blowdown Facility for Dense Gas Vapours
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Topics: Computational fluid dynamics, Computer simulation, Cylinders, Design, Displacement, Equations of state, Error analysis, Flow (Dynamics), Fluids, Geothermal engineering
Proceedings Papers

3D Computational Loss Analysis of a Compressor for Heavy Duty Truck Engine Turbochargers

Matthias Abel, Ricardo F. Martinez-Botas, Michael Wöhr, Markus Müller, Johannes Leweux
Proc. ASME. GT2019, Volume 2B: Turbomachinery, V02BT44A001, June 17–21, 2019
Paper No: GT2019-90038
https://doi.org/10.1115/GT2019-90038
View Paper titled, 3D Computational Loss Analysis of a Compressor for Heavy Duty Truck Engine Turbochargers
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Topics: Compressors, Engines, Trucks, Turbochargers, Stress, Entropy, Boundary layers, Friction, Computational fluid dynamics, Diffusers
Proceedings Papers

Experimental Study on Centrifugal Compressor Performance at Pulsating Backpressure Conditions

Mengying Shu, Mingyang Yang, Kaiyue Zhang, Ricardo F. Martinez-Botas, Kangyao Deng
Proc. ASME. GT2019, Volume 2B: Turbomachinery, V02BT44A012, June 17–21, 2019
Paper No: GT2019-90735
https://doi.org/10.1115/GT2019-90735
View Paper titled, Experimental Study on Centrifugal Compressor Performance at Pulsating Backpressure Conditions
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Topics: Compressors, Surges, Flow (Dynamics), Engines, Turbochargers, Cylinders, Design methodology, Fast Fourier transforms, Fluctuations (Physics), Frequency-domain analysis
Proceedings Papers

Meanline Modeling of Asymmetrical Twin-Scroll Turbine: Loss Coefficient Transferability Between Turbines of Different Sizes

Meng Soon Chiong, Srithar Rajoo, Ricardo F. Martinez-Botas, Torsten Palenschat, Peter Weitzman, Mark Anderson, Thiago Ebel
Proc. ASME. GT2019, Volume 2B: Turbomachinery, V02BT44A021, June 17–21, 2019
Paper No: GT2019-91982
https://doi.org/10.1115/GT2019-91982
View Paper titled, Meanline Modeling of Asymmetrical Twin-Scroll Turbine: Loss Coefficient Transferability Between Turbines of Different Sizes
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Topics: Modeling, Turbines, Exhaust gas recirculation, Flow (Dynamics), Geometry, High pressure (Physics), Performance, Pressure, Rotors, Turbochargers
Journal Articles

Unsteady Responses of the Impeller of a Centrifugal Compressor Exposed to Pulsating Backpressure

Mengying Shu, Mingyang Yang, Ricardo F. Martinez-Botas, Kangyao Deng, Lei Shi
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2019, 141(4): 041005.
Paper No: GTP-18-1594
https://doi.org/10.1115/1.4041658
Published Online: November 1, 2018
View Article titled, Unsteady Responses of the Impeller of a Centrifugal Compressor Exposed to Pulsating Backpressure
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Topics: Compressors, Flow (Dynamics), Impellers, Pressure
Proceedings Papers

Unsteady Responses of the Impeller of a Centrifugal Compressor Exposed to Pulsating Backpressure

Mengying Shu, Mingyang Yang, Ricardo F. Martinez-Botas, Kangyao Deng, Lei Shi
Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT44A024, June 11–15, 2018
Paper No: GT2018-76851
https://doi.org/10.1115/GT2018-76851
View Paper titled, Unsteady Responses of the Impeller of a Centrifugal Compressor Exposed to Pulsating Backpressure
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Topics: Compressors, Impellers, Flow (Dynamics), Engines, Simulation, Turbochargers, Airfoils, Boundary-value problems, Computational fluid dynamics, Cylinders
Proceedings Papers

3D Computational Analysis of a Compressor for Heavy Duty Truck Engine Turbochargers

Matthias Abel, Peter Newton, Ricardo F. Martinez-Botas, Michael Wöhr, Markus Müller, Johannes Leweux
Proc. ASME. GT2018, Volume 2B: Turbomachinery, V02BT44A012, June 11–15, 2018
Paper No: GT2018-75688
https://doi.org/10.1115/GT2018-75688
View Paper titled, 3D Computational Analysis of a Compressor for Heavy Duty Truck Engine Turbochargers
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Topics: Compressors, Engines, Trucks, Turbochargers, Computational fluid dynamics, Diffusers, Pressure, Steady state, Flow (Dynamics), Fuel consumption
Journal Articles

Performance Analysis of a Centrifugal Compressor Based on Circumferential Flow Distortion Induced by Volute

Mengying Shu, Mingyang Yang, Kangyao Deng, Xinqian Zheng, Ricardo F. Martinez-Botas
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2018, 140(12): 122603.
Paper No: GTP-17-1645
https://doi.org/10.1115/1.4040681
Published Online: August 9, 2018
View Article titled, Performance Analysis of a Centrifugal Compressor Based on Circumferential Flow Distortion Induced by Volute
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Topics: Compressors, Flow (Dynamics), Impellers, Pressure, Stability
Proceedings Papers

3-D Computational Loss Analysis of an Asymmetric Volute Twin-Scroll Turbocharger

Torsten Palenschat, Peter Newton, Ricardo F. Martinez-Botas, Markus Müller, Johannes Leweux
Proc. ASME. GT2017, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T26A016, June 26–30, 2017
Paper No: GT2017-64190
https://doi.org/10.1115/GT2017-64190
View Paper titled, 3-D Computational Loss Analysis of an Asymmetric Volute Twin-Scroll Turbocharger
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Topics: Turbochargers, Exhaust gas recirculation, Exhaust systems, Emissions, Turbines, Combustion, Cylinders, Flow (Dynamics), Nitrogen oxides, Trucks
Proceedings Papers

Development and Experimental Validation of a Low Order Turbine Model Under Highly Pulsating Flow

Karl G. Hohenberg, Peter J. Newton, Ricardo F. Martinez-Botas, Martin Halamek, Kotaro Maeda, Julien Bouilly
Proc. ASME. GT2017, Volume 2C: Turbomachinery, V02CT44A023, June 26–30, 2017
Paper No: GT2017-63983
https://doi.org/10.1115/GT2017-63983
View Paper titled, Development and Experimental Validation of a Low Order Turbine Model Under Highly Pulsating Flow
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Topics: Pulsatile flow, Turbines, Modeling, Computer software, Engine design, Engineering standards, Engines, Errors, Flow (Dynamics), Rotors
Proceedings Papers

Analytical Investigation of a Thermal-Supercharged Internal Combustion Engine Compounded With Organic Rankine Cycle for Waste Heat Recovery

Manuel Jiménez-Arreola, Fabio Dal Magro, Alessandro Romagnoli, Meng Soon Chiong, Srithar Rajoo, Ricardo F. Martinez-Botas
Proc. ASME. GT2017, Volume 3: Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration Applications; Organic Rankine Cycle Power Systems, V003T28A005, June 26–30, 2017
Paper No: GT2017-65096
https://doi.org/10.1115/GT2017-65096
View Paper titled, Analytical Investigation of a Thermal-Supercharged Internal Combustion Engine Compounded With Organic Rankine Cycle for Waste Heat Recovery
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Topics: Heat recovery, Internal combustion engines, Organic Rankine cycle, Rankine cycle, Engines, Pressure, Exhaust systems, Waste heat, Turbochargers, Benzene
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
https://doi.org/10.1115/GT2016-56754
View Paper titled, Radial Turboexpander Optimization Over Discretized Heavy-Duty Test Cycles for Mobile Organic Rankine Cycle Applications
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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
https://doi.org/10.1115/GT2015-42053
View Paper titled, Influence of Geometrical Parameters on Aerodynamic Optimization of a Mixed-Flow Turbocharger Turbine
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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
https://doi.org/10.1115/GT2015-42687
View Paper titled, Assessment of Partial-Admission Characteristics in Twin-Entry Turbine Pulse Performance Modelling
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Topics: Modeling, Turbines, Flow (Dynamics), Cycles, Engines, Exhaust systems, Test facilities
Proceedings Papers

Assessment of Turbocharger Turbine Unsteady Flow Modelling Methodology on Engine Performance

Ammar Mustafa, Ricardo F. Martinez-Botas, Apostolos Pesiridis, Meng Soon Chiong, Srithar Rajoo
Proc. ASME. ESDA2014, Volume 1: Applied Mechanics; Automotive Systems; Biomedical Biotechnology Engineering; Computational Mechanics; Design; Digital Manufacturing; Education; Marine and Aerospace Applications, V001T02A014, July 25–27, 2014
Paper No: ESDA2014-20392
https://doi.org/10.1115/ESDA2014-20392
View Paper titled, Assessment of Turbocharger Turbine Unsteady Flow Modelling Methodology on Engine Performance
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Topics: Engines, Modeling, Turbines, Turbochargers, Unsteady flow, Steady state, Computer software, Design, Flow (Dynamics), Simulation
Proceedings Papers

Online Performance Monitoring of Industrial Compressors Using Meanline Modelling

Matteo Cicciotti, Dionysios P. Xenos, Ala E. F. Bouaswaig, Nina F. Thornhill, Ricardo F. Martinez-Botas
Proc. ASME. GT2014, Volume 2D: Turbomachinery, V02DT42A003, June 16–20, 2014
Paper No: GT2014-25088
https://doi.org/10.1115/GT2014-25088
View Paper titled, Online Performance Monitoring of Industrial Compressors Using Meanline Modelling
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Topics: Compressors, Modeling, Pressure, Inlet guide vanes, Flow (Dynamics), Machinery, Maintenance, Temperature
Journal Articles

Radial Turbine Rotor Response to Pulsating Inlet Flows

Teng Cao, Liping Xu, Mingyang Yang, Ricardo F. Martinez-Botas
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. July 2014, 136(7): 071003.
Paper No: TURBO-13-1174
https://doi.org/10.1115/1.4025948
Published Online: December 27, 2013
View Article titled, Radial Turbine Rotor Response to Pulsating Inlet Flows
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Topics: Flow (Dynamics), Pressure, Rotors, Turbines, Waves, Numerical analysis