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Ricardo Martinez-Botas
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Journal Articles

One-Dimensional Modeling for Pulsed Flow Twin-Entry Turbine

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

One Dimensional Modelling for Pulsed Flow Twin-Entry Turbine

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
Paper No: GT2021-60069
DOI: https://doi.org/10.1115/GT2021-60069
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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

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
Paper No: GT2021-60239
DOI: https://doi.org/10.1115/GT2021-60239
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Topics: Numerical analysis, Pressure, Turbines, Design, Rotors, Blades, Computational fluid dynamics, Computer simulation, Fibers, Deformation
Proceedings Papers

Flow Field Analysis and Optimized Design of a Centrifugal Compressor Volute

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
Paper No: GT2021-59879
DOI: https://doi.org/10.1115/GT2021-59879
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Topics: Compressors, Design, Flow (Dynamics), Surges, Automotive engines, Carbon, Design methodology, Engines, Impellers, Pressure
Journal Articles

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

Karl Hohenberg, Ricardo Martinez-Botas, Piotr Łuczyński, Carola Freytag, Manfred Wirsum
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2021, 143(10): 101008.
Paper No: GTP-20-1693
DOI: https://doi.org/10.1115/1.4051488
Published Online: September 3, 2021
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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

Karl Hohenberg, Ricardo Martinez-Botas, Piotr Łuczyński, Carola Freytag, Manfred Wirsum
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A024, September 21–25, 2020
Paper No: GT2020-15698
DOI: https://doi.org/10.1115/GT2020-15698
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Topics: Design, Engines, Optimization, Turbines, Turbochargers, Accounting, Dynamometers, Errors, Experimental methods, Flow (Dynamics)
Journal Articles

Experimental and Numerical Study of Supersonic Non-ideal Flows for Organic Rankine Cycle Applications

Miles Robertson, Peter Newton, Tao Chen, Aaron Costall, Ricardo Martinez-Botas
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2020, 142(8): 081007.
Paper No: GTP-20-1054
DOI: https://doi.org/10.1115/1.4046758
Published Online: July 31, 2020
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Topics: Computational fluid dynamics, Design, Flow (Dynamics), Fluids, Nozzles, Organic Rankine cycle, Pressure, Refrigerants, Simulation, Temperature
Journal Articles

Understanding of Secondary Flows and Losses in Radial and Mixed Flow Turbines

Bijie Yang, Peter Newton, Ricardo Martinez-Botas
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. August 2020, 142(8): 081006.
Paper No: TURBO-19-1132
DOI: https://doi.org/10.1115/1.4046487
Published Online: July 29, 2020
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Topics: Flow (Dynamics), Pressure, Separation (Technology), Suction, Turbines, Vortices, Leakage, Blades, Entropy, Topology
Proceedings Papers

TURBODYNA: Centrifugal/Centripetal Turbomachinery Dynamic Simulator and its Application on a Mixed Flow Turbine

Bijie Yang, Ricardo Martinez-Botas
Proc. ASME. GT2019, Volume 2B: Turbomachinery, V02BT44A018, June 17–21, 2019
Paper No: GT2019-91299
DOI: https://doi.org/10.1115/GT2019-91299
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Topics: Flow (Dynamics), Turbines, Turbomachinery, Modeling, Rotors, Computational fluid dynamics, Entropy, Pressure, Transportation systems, Waves
Journal Articles

TURBODYNA: Centrifugal/Centripetal Turbomachinery Dynamic Simulator and Its Application on a Mixed Flow Turbine

Bijie Yang, Ricardo Martinez-Botas
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2019, 141(10): 101012.
Paper No: GTP-19-1334
DOI: https://doi.org/10.1115/1.4044681
Published Online: September 16, 2019
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Topics: Computational fluid dynamics, Flow (Dynamics), Rotors, Turbines, Turbomachinery, Pressure, Modeling, Entropy, Waves, Cascades (Fluid dynamics)
Journal Articles

On the Effect of Engine Pulsations on the Performance of a Turbocharger Centrifugal Compressor

Maria Esperanza Barrera-Medrano, Ricardo Martinez-Botas, Isao Tomita, Seiichi Ibaraki
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2019, 141(8): 081001.
Paper No: GTP-18-1493
DOI: https://doi.org/10.1115/1.4042609
Published Online: February 11, 2019
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Topics: Compressors, Flow (Dynamics), Surges, Pressure, Compression
Proceedings Papers

Investigation on Pulsating Flow Effect of a Turbocharger Turbine

Zhanming Ding, Weilin Zhuge, Yangjun Zhang, Hua Chen, Ricardo Martinez-Botas
Proc. ASME. FEDSM2017, Volume 1A, Symposia: Keynotes; Advances in Numerical Modeling for Turbomachinery Flow Optimization; Fluid Machinery; Industrial and Environmental Applications of Fluid Mechanics; Pumping Machinery, V01AT02A008, July 30–August 3, 2017
Paper No: FEDSM2017-69186
DOI: https://doi.org/10.1115/FEDSM2017-69186
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Topics: Pulsatile flow, Turbines, Turbochargers, Flow (Dynamics), Engines, Inflow, Internal combustion engines, Rotors, Simulation, Stress
Proceedings Papers

Multi-Injection Turbine Housing: A Novel Concept for Tip-Leakage Improvement in Radial Turbines

Hao Liu, Alessandro Romagnoli, Ricardo Martinez-Botas, Srithar Rajoo, Muhamad Hasbullah Padzillah
Proc. ASME. GT2017, Volume 2C: Turbomachinery, V02CT44A022, June 26–30, 2017
Paper No: GT2017-63975
DOI: https://doi.org/10.1115/GT2017-63975
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Topics: Leakage, Turbines, Flow (Dynamics), Blades, Yaw, Fluids, Pressure, Suction, Torque, Vortices
Journal Articles

Effect of Exit Pressure Pulsation on the Performance and Stability Limit of a Turbocharger Centrifugal Compressor

Maria Esperanza Barrera-Medrano, Peter Newton, Ricardo Martinez-Botas, Srithar Rajoo, Isao Tomita, Seiichi Ibaraki
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2017, 139(5): 052601.
Paper No: GTP-16-1366
DOI: https://doi.org/10.1115/1.4034689
Published Online: December 21, 2016
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Topics: Compressors, Flow (Dynamics), Pressure, Surges, Valves, Engines, Compression, Stability, Pulsatile flow
Proceedings Papers

Effect of Exit Pressure Pulsation on the Performance and Stability Limit of a Turbocharger Centrifugal Compressor

Maria Esperanza Barrera-Medrano, Peter Newton, Ricardo Martinez-Botas, Srithar Rajoo, Isao Tomita, Seiichi Ibaraki
Proc. ASME. GT2016, Volume 2D: Turbomachinery, V02DT42A003, June 13–17, 2016
Paper No: GT2016-56109
DOI: https://doi.org/10.1115/GT2016-56109
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Topics: Compressors, Pressure, Stability, Turbochargers, Surges, Valves, Flow (Dynamics), Compression, Diffusers, Dynamics (Mechanics)
Journal Articles

A Three-Dimensional Computational Study of Pulsating Flow Inside a Double Entry Turbine

Peter Newton, Ricardo Martinez-Botas, Martin Seiler
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. March 2015, 137(3): 031001.
Paper No: TURBO-14-1116
DOI: https://doi.org/10.1115/1.4028217
Published Online: September 30, 2014
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Topics: Computational fluid dynamics, Cycles, Entropy, Flow (Dynamics), Pressure, Rotors, Turbines, Pulsatile flow, Wheels
Proceedings Papers

Modeling and Optimization of Industrial Centrifugal Compressor Stations Employing Data-Driven Methods

Dionysios P. Xenos, Matteo Cicciotti, Ala E. F. Bouaswaig, Nina F. Thornhill, Ricardo Martinez-Botas
Proc. ASME. GT2014, Volume 3B: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Supercritical CO2 Power Cycles; Wind Energy, V03BT25A004, June 16–20, 2014
Paper No: GT2014-25089
DOI: https://doi.org/10.1115/GT2014-25089
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Topics: Compressors, Modeling, Optimization, Cooling, Energy consumption, Stress, Water, Maintenance, Motors
Proceedings Papers

Influence of Volute Cross-Sectional Shape of a Nozzleless Turbocharger Turbine Under Pulsating Flow Conditions

Mingyang Yang, Ricardo Martinez-Botas, Srithar Rajoo, Takao Yokoyama, Seiichi Ibaraki
Proc. ASME. GT2014, Volume 2D: Turbomachinery, V02DT42A025, June 16–20, 2014
Paper No: GT2014-26150
DOI: https://doi.org/10.1115/GT2014-26150
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Topics: Pulsatile flow, Shapes, Turbines, Turbochargers, Computational fluid dynamics, Flow (Dynamics), Rotors, Cycles
Proceedings Papers

A 3-Dimensional Computational Study of Pulsating Flow Inside a Double Entry Turbine

Peter Newton, Ricardo Martinez-Botas, Martin Seiler
Proc. ASME. GT2014, Volume 2D: Turbomachinery, V02DT42A026, June 16–20, 2014
Paper No: GT2014-26151
DOI: https://doi.org/10.1115/GT2014-26151
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Topics: Pulsatile flow, Turbines, Flow (Dynamics), Storage, Rotors, Cycles, Geometry, Wheels, Blades, Entropy
Journal Articles

The Variable Outlet Turbine Concept for Turbochargers

Elias Chebli, Michael Casey, Ricardo Martinez-Botas, Siegfried Sumser, Markus Müller, Stefan Künzel, Johannes Leweux, Andreas Gorbach, Wolfram Schmidt
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. December 2014, 136(12): 121001.
Paper No: TURBO-14-1105
DOI: https://doi.org/10.1115/1.4028231
Published Online: August 26, 2014
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Topics: Engines, Flow (Dynamics), Turbines, Pressure, Impellers, Computational fluid dynamics