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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

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

DOI: https://doi.org/10.1115/GT2019-91982

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Topics: Modeling, Turbines, Exhaust gas recirculation, Flow (Dynamics), Geometry, High pressure (Physics), Performance, Pressure, Rotors, Turbochargers

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

DOI: https://doi.org/10.1115/GT2017-65096

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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

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

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)

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 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

DOI: https://doi.org/10.1115/ESDA2014-20392

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Topics: Engines, Modeling, Turbines, Turbochargers, Unsteady flow, Steady state, Computer software, Design, Flow (Dynamics), Simulation

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

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

Unsteady Performance Prediction of a Single Entry Mixed Flow Turbine Using 1-D Gas Dynamic Code Extended With Meanline Model

Meng Soon Chiong, Srithar Rajoo, Alessandro Romagnoli, Ricardo Martinez-Botas

Proc. ASME. GT2012, Volume 5: Manufacturing Materials and Metallurgy; Marine; Microturbines and Small Turbomachinery; Supercritical CO2 Power Cycles, 781-795, June 11–15, 2012

Paper No: GT2012-69176

DOI: https://doi.org/10.1115/GT2012-69176

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Topics: Flow (Dynamics), Turbines, Engines, Turbochargers, Simulation, Carbon, Cycles, Exhaust systems, Fuel consumption, Modeling

Journal Articles

Comparison Between the Steady Performance of Double-Entry and Twin-Entry Turbocharger Turbines

Alessandro Romagnoli, Colin D. Copeland, Ricardo Martinez-Botas, Martin Seiler, Srithar Rajoo, Aaron Costall

J. Turbomach. January 2013, 135(1): 011042.

Paper No: TURBO-11-1184

DOI: https://doi.org/10.1115/1.4006566

Published Online: October 31, 2012

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Topics: Flow (Dynamics), Turbines

Proceedings Papers

Comparison Between the Steady Performance of Double-Entry and Twin-Entry Turbocharger Turbines

Alessandro Romagnoli, Colin Copeland, Ricardo Martinez-Botas, Srithar Rajoo, Martin Seiler, Aaron Costall

Proc. ASME. GT2011, Volume 7: Turbomachinery, Parts A, B, and C, 1995-2007, June 6–10, 2011

Paper No: GT2011-45525

DOI: https://doi.org/10.1115/GT2011-45525

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Topics: Turbines, Turbochargers

Journal Articles

Unsteady Effect in a Nozzled Turbocharger Turbine

Srithar Rajoo, R. F. Martinez-Botas

J. Turbomach. July 2010, 132(3): 031001.

DOI: https://doi.org/10.1115/1.3142862

Published Online: March 24, 2010

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Topics: Flow (Dynamics), Nozzles, Pulsatile flow, Turbines, Turbochargers, Cycles

Proceedings Papers

Active Control Turbocharger (ACT): A Method to Improve Energy Extraction From an Engine Exhaust Gas

Yoann Me´rigot, Srithar Rajoo, R. F. Martinez-Botas

Proc. ASME. GT2009, Volume 5: Microturbines and Small Turbomachinery; Oil and Gas Applications, 137-151, June 8–12, 2009

Paper No: GT2009-59550

DOI: https://doi.org/10.1115/GT2009-59550

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Topics: Engines, Exhaust systems, Turbochargers, Geometry, Turbines, Flow (Dynamics), Simulation, Stress

Proceedings Papers

Lean and Straight Nozzle Vanes in a Variable Geometry Turbine: A Steady and Pulsating Flow Investigation

Srithar Rajoo, R. F. Martinez-Botas

Proc. ASME. GT2008, Volume 6: Turbomachinery, Parts A, B, and C, 1589-1601, June 9–13, 2008

Paper No: GT2008-50828

DOI: https://doi.org/10.1115/GT2008-50828

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Topics: Geometry, Nozzles, Pulsatile flow, Turbines, Flow (Dynamics), Turbochargers, Cycles, Engines, Pressure, Design

Proceedings Papers

Unsteady Effect in a Nozzled Turbocharger Turbine

Srithar Rajoo, R. F. Martinez-Botas

Proc. ASME. GT2007, Volume 6: Turbo Expo 2007, Parts A and B, 1159-1170, May 14–17, 2007

Paper No: GT2007-28323

DOI: https://doi.org/10.1115/GT2007-28323

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Topics: Turbines, Turbochargers, Flow (Dynamics), Nozzles, Pulsatile flow, Cylinders, Damping, Engines, Internal combustion engines, Test facilities

Journal Articles

Mixed Flow Turbine Research: A Review

Srithar Rajoo, Ricardo Martinez-Botas

J. Turbomach. October 2008, 130(4): 044001.

DOI: https://doi.org/10.1115/1.2812326

Published Online: June 27, 2008

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Topics: Flow (Dynamics), Turbines, Rotors

Journal citation

NARROW

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

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

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

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

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

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

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

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

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

Assessment of Turbocharger Turbine Unsteady Flow Modelling Methodology on Engine Performance

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

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

Unsteady Performance Prediction of a Single Entry Mixed Flow Turbine Using 1-D Gas Dynamic Code Extended With Meanline Model

Comparison Between the Steady Performance of Double-Entry and Twin-Entry Turbocharger Turbines

Comparison Between the Steady Performance of Double-Entry and Twin-Entry Turbocharger Turbines

Unsteady Effect in a Nozzled Turbocharger Turbine

Active Control Turbocharger (ACT): A Method to Improve Energy Extraction From an Engine Exhaust Gas

Lean and Straight Nozzle Vanes in a Variable Geometry Turbine: A Steady and Pulsating Flow Investigation

Unsteady Effect in a Nozzled Turbocharger Turbine

Mixed Flow Turbine Research: A Review

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