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Ricardo Martinez-Botas
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Journal Articles

Supercritical Carbon Dioxide Mixing Loss Characteristics Near the Critical Point

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Jinhong Wang, Teng Cao, Ricardo Martinez-Botas
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2025, 147(5): 051020.
Paper No: GTP-24-1609
https://doi.org/10.1115/1.4066603
Published Online: November 22, 2024
View Articletitled, Supercritical Carbon Dioxide Mixing Loss Characteristics Near the Critical Point
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Topics: Degrees of freedom, Entropy, Fluids, Pressure, Temperature, Carbon dioxide
Proceedings Papers

Supercritical Carbon Dioxide Mixing Loss Characteristics Near the Critical Point

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Jinhong Wang, Teng Cao, Ricardo Martinez-Botas
Proc. ASME. GT2024, Volume 11: Supercritical CO2, V011T28A002, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122056
https://doi.org/10.1115/GT2024-122056
View Paper titled, Supercritical Carbon Dioxide Mixing Loss Characteristics Near the Critical Point
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Topics: Ducts, Entropy, Flow (Dynamics), Fluids, Gases, Leakage flows, Nuclides, Pressure, Supercritical carbon dioxide, Temperature
Journal Articles

Supercritical Carbon Dioxide Shock Behavior Near the Critical Point

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Jinhong Wang, Teng Cao, Ricardo Martinez-Botas
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2024, 146(1): 011010.
Paper No: GTP-23-1414
https://doi.org/10.1115/1.4063384
Published Online: October 25, 2023
View Articletitled, Supercritical Carbon Dioxide Shock Behavior Near the Critical Point
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Topics: Shock (Mechanics), Fluids, Carbon dioxide, Algorithms, Mach number
Proceedings Papers

Supercritical Carbon Dioxide Shock Behaviour Near the Critical Point

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Jinhong Wang, Teng Cao, Ricardo Martinez-Botas
Proc. ASME. GT2023, Volume 12: Supercritical CO2, V012T28A001, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-100956
https://doi.org/10.1115/GT2023-100956
View Paper titled, Supercritical Carbon Dioxide Shock Behaviour Near the Critical Point
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Topics: Fluids, Shock (Mechanics), Supercritical carbon dioxide
Proceedings Papers

Hysteresis Effect of Volute on Compressor Performance Under Pulsating Flow Condition

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Yoshihiro Hayashi, Aakeen Parikh, Maria Esperanza Barrera-Medrano, Ricardo Martinez-Botas
Proc. ASME. GT2023, Volume 13D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V13DT35A010, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102332
https://doi.org/10.1115/GT2023-102332
View Paper titled, Hysteresis Effect of Volute on Compressor Performance Under Pulsating Flow Condition
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Topics: Compressors, Pulsatile flow
Proceedings Papers

Computational Flow Field Assessment of the Inlet Region of Centrifugal Compressor Under Unsteady Flow Conditions Near Surge

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Aakeen Parikh, Pablo Ale-Martos, Maria Esperanza Barrera-Medrano, Yoshihiro Hayashi, Ricardo Martinez-Botas
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT35A005, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81968
https://doi.org/10.1115/GT2022-81968
View Paper titled, Computational Flow Field Assessment of the Inlet Region of Centrifugal Compressor Under Unsteady Flow Conditions Near Surge
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Topics: Compressors, Flow (Dynamics), Surges, Unsteady flow, Pulsatile flow, Stability, Boundary-value problems, Cycles, Dynamic response, Engines
Proceedings Papers

Unsteady Gas Dynamics of Radial Turbine Volutes Under Pressure Pulsations

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Bijie Yang, Yingxian Xue, Ricardo Martinez-Botas, Mingyang Yang
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT35A008, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82255
https://doi.org/10.1115/GT2022-82255
View Paper titled, Unsteady Gas Dynamics of Radial Turbine Volutes Under Pressure Pulsations
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Topics: Gasdynamics, Pressure, Turbines, Flow (Dynamics), Engines, Computational fluid dynamics, Pistons, Unsteady flow, Carbon dioxide, Design methodology
Proceedings Papers

Optimisation of an ORC Radial Turbine Using a Reduced-Order Model Coupled With CFD

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Eva Alvarez-Regueiro, Bijie Yang, Esperanza Barrera-Medrano, Ricardo Martinez-Botas, Srithar Rajoo
Proc. ASME. GT2022, Volume 4: Cycle Innovations; Cycle Innovations: Energy Storage, V004T06A011, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80944
https://doi.org/10.1115/GT2022-80944
View Paper titled, Optimisation of an ORC Radial Turbine Using a Reduced-Order Model Coupled With CFD
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Topics: Computational fluid dynamics, Optimization, Organic Rankine cycle, Turbines, Flow (Dynamics), Geometry, Design, Fluids, Algorithms, Cycles
Proceedings Papers

Design and Development of a Fast Response Torque Meter for Unsteady Flows in Turbocharger Applications

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Aakeen Parikh, Gunin Singh, Chris Noon, Harminder Flora, Ricardo Martinez-Botas
Proc. ASME. GT2022, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications, V007T18A014, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81976
https://doi.org/10.1115/GT2022-81976
View Paper titled, Design and Development of a Fast Response Torque Meter for Unsteady Flows in Turbocharger Applications
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Topics: Design, Torquemeters, Turbochargers, Unsteady flow, Torque, Compressors, Torque measurement, Boundary-value problems, Construction, Generators
Proceedings Papers

Influence of Real Gas Properties on Loss in a Super Critical CO 2 (sCO 2 ) Centrifugal Compressor

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Ruikai Cai, Mingyang Yang, Kangyao Deng, Weilin Zhuge, Bijie Yang, Ricardo Martinez-Botas, Tao Chen
Proc. ASME. GT2022, Volume 9: Supercritical CO2, V009T28A013, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82151
https://doi.org/10.1115/GT2022-82151
View Paper titled, Influence of Real Gas Properties on Loss in a Super Critical CO 2 (sCO 2 ) Centrifugal Compressor
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Topics: Carbon dioxide, Compressors
Journal Articles

Unsteady Gas Dynamics of Radial Turbine Volutes Under Pressure Pulsations

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Bijie Yang, Yingxian Xue, Ricardo Martinez-Botas, Mingyang Yang
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2023, 145(3): 031013.
Paper No: TURBO-22-1223
https://doi.org/10.1115/1.4055644
Published Online: October 20, 2022
View Articletitled, Unsteady Gas Dynamics of Radial Turbine Volutes Under Pressure Pulsations
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Topics: Computational fluid dynamics, Flow (Dynamics), Pressure, Rotors, Turbines, Geometry
Journal Articles

Modeling of Dynamic Response of a Radial Turbine to Pulsatile Incoming Flow

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Mingyang Yang, Yingxian Xue, Lei Pan, Bijie Yang, Ricardo Martinez-Botas
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2023, 145(3): 031005.
Paper No: TURBO-22-1066
https://doi.org/10.1115/1.4055641
Published Online: October 17, 2022
View Articletitled, Modeling of Dynamic Response of a Radial Turbine to Pulsatile Incoming Flow
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Topics: Flow (Dynamics), Torque, Turbines, Rotors, Modeling
Journal Articles

Optimization of an Organic Ranking Cycle Radial Turbine Using a Reduced-Order Model Coupled With Computational Fluid Dynamics

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Eva Alvarez-Regueiro, Bijie Yang, Esperanza Barrera-Medrano, Ricardo Martinez-Botas, Srithar Rajoo
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2022, 144(10): 101012.
Paper No: GTP-22-1286
https://doi.org/10.1115/1.4055359
Published Online: September 12, 2022
View Articletitled, Optimization of an Organic Ranking Cycle Radial Turbine Using a Reduced-Order Model Coupled With Computational Fluid Dynamics
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Topics: Blades, Design, Flow (Dynamics), Geometry, Nozzles, Optimization, Rotors, Turbines, Computational fluid dynamics, Pressure
Journal Articles

TURBODYNA: A Generic One-Dimensional Dynamic Simulator for Radial Turbomachinery

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Bijie Yang, Mengying Shu, Ricardo Martinez-Botas, Mingyang Yang
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2022, 144(9): 091002.
Paper No: GTP-22-1069
https://doi.org/10.1115/1.4055018
Published Online: July 28, 2022
View Articletitled, TURBODYNA: A Generic One-Dimensional Dynamic Simulator for Radial Turbomachinery
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Topics: Compressors, Flow (Dynamics), Modeling, Pressure, Rotors, Surges, Turbines, Turbomachinery, Turbochargers, Geometry
Journal Articles

One-Dimensional Modeling for Pulsed Flow Twin-Entry Turbine

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Bijie Yang, Ricardo Martinez-Botas, Yingxian Xue, Mingyang Yang
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2022, 144(7): 071012.
Paper No: TURBO-21-1201
https://doi.org/10.1115/1.4053489
Published Online: March 3, 2022
View Articletitled, One-Dimensional Modeling for Pulsed Flow Twin-Entry Turbine
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Topics: Flow (Dynamics), Modeling, Pressure, Rotors, Turbines, Computational fluid dynamics
Proceedings Papers

Flow Field Analysis and Optimized Design of a Centrifugal Compressor Volute

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Pablo Ale Martos, Maria Esperanza Barrera-Medrano, Ricardo Martinez-Botas, Isao Tomita, Tadashi Kanzaka, Seiichi Ibaraki
Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT34A037, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59879
https://doi.org/10.1115/GT2021-59879
View Paper titled, Flow Field Analysis and Optimized Design of a Centrifugal Compressor Volute
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Topics: Compressors, Design, Flow (Dynamics), Surges, Automotive engines, Carbon, Design methodology, Engines, Impellers, Pressure
Proceedings Papers

One Dimensional Modelling for Pulsed Flow Twin-Entry Turbine

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Bijie Yang, Ricardo Martinez-Botas, Yingxian Xue, Mingyang Yang
Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT37A015, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60069
https://doi.org/10.1115/GT2021-60069
View Paper titled, One Dimensional Modelling for Pulsed Flow Twin-Entry Turbine
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Topics: Flow (Dynamics), Modeling, Turbines, Pressure, Turbochargers, Computational fluid dynamics, Energy conservation, Engines, Exhaust systems, Internal combustion engines
Proceedings Papers

Numerical Analysis of Non-Radial Blading in a Low Speed and Low Pressure Turbine for Electric Turbocompounding Applications

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Eva Alvarez-Regueiro, Esperanza Barrera-Medrano, Ricardo Martinez-Botas, Srithar Rajoo
Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT37A017, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60239
https://doi.org/10.1115/GT2021-60239
View Paper titled, Numerical Analysis of Non-Radial Blading in a Low Speed and Low Pressure Turbine for Electric Turbocompounding Applications
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Topics: Numerical analysis, Pressure, Turbines, Design, Rotors, Blades, Computational fluid dynamics, Computer simulation, Fibers, Deformation
Journal Articles

Numerical and Experimental Investigation of a Low Order Radial Turbine Model for Engine-Level Optimization of Turbocharger Design

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Karl Hohenberg, Ricardo Martinez-Botas, Piotr Łuczyński, Carola Freytag, Manfred Wirsum
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2021, 143(10): 101008.
Paper No: GTP-20-1693
https://doi.org/10.1115/1.4051488
Published Online: September 3, 2021
View Articletitled, Numerical and Experimental Investigation of a Low Order Radial Turbine Model for Engine-Level Optimization of Turbocharger Design
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Topics: Design, Errors, Flow (Dynamics), Turbines, Turbochargers, Optimization, Rotors, Engines, Pressure, Computational fluid dynamics
Proceedings Papers

Numerical and Experimental Investigation of a Low Order Radial Turbine Model for Engine-Level Optimisation of Turbocharger Design

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Karl Hohenberg, Ricardo Martinez-Botas, Piotr Łuczyński, Carola Freytag, Manfred Wirsum
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A024, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15698
https://doi.org/10.1115/GT2020-15698
View Paper titled, Numerical and Experimental Investigation of a Low Order Radial Turbine Model for Engine-Level Optimisation of Turbocharger Design
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Topics: Design, Engines, Optimization, Turbines, Turbochargers, Accounting, Dynamometers, Errors, Experimental methods, Flow (Dynamics)