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Journal Articles

Unsteady Steam Turbine Optimization Using High-Fidelity Computational Fluid Dynamics

Vahid Iranidokht, Ilias Papagiannis, Anestis I. Kalfas, Reza S. Abhari, Shigeki Senoo, Kazuhiro Momma
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. September 2021, 143(9): 091006.
Paper No: TURBO-20-1367
DOI: https://doi.org/10.1115/1.4050441
Published Online: May 5, 2021
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Topics: Computational fluid dynamics, Flow (Dynamics), Geometry, Optimization, Pressure, Rotors, Steam turbines, Blades, Cavities, Turbines
Journal Articles

Turbine Hub Cavity Modes and Their Impact on Efficiency

Vahid Iranidokht, Naman Purwar, Anestis I Kalfas, Reza S Abhari, Shigeki Senoo
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. March 2021, 143(3): 031010.
Paper No: TURBO-19-1174
DOI: https://doi.org/10.1115/1.4050110
Published Online: March 2, 2021
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Topics: Cavities, Flow (Dynamics), Rotors, Pressure, Computational fluid dynamics, Turbines
Proceedings Papers

Unsteady Steam Turbine Optimization Using High Fidelity CFD

Vahid Iranidokht, Ilias Papagiannis, Anestis Kalfas, Reza Abhari, Shigeki Senoo, Kazuhiro Momma
Proc. ASME. GT2020, Volume 2B: Turbomachinery, V02BT33A012, September 21–25, 2020
Paper No: GT2020-14674
DOI: https://doi.org/10.1115/GT2020-14674
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Topics: Computational fluid dynamics, Optimization, Steam turbines
Proceedings Papers

Development and Verification Tests of Titanium 50-Inch and 60-Inch Last Stage Blades for Steam Turbines

Shigeki Senoo, Takeshi Kudo, Hisataka Fukushima, Kiyoshi Segawa, Kazuya Sakakibara
Proc. ASME. GT2019, Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines, V008T29A001, June 17–21, 2019
Paper No: GT2019-90003
DOI: https://doi.org/10.1115/GT2019-90003
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Topics: Blades, Steam turbines, Titanium, Flow (Dynamics), Rotors, Shock waves, Stators, Annulus, Exhaust systems, Pressure
Journal Articles

Unsteady Flow Field and Coarse Droplet Measurements in the Last Stage of a Low-Pressure Steam Turbine With Supersonic Airfoils Near the Blade Tip

Ilias Bosdas, Michel Mansour, Anestis I. Kalfas, Reza S. Abhari, Shigeki Senoo
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2017, 139(9): 091601.
Paper No: GTP-16-1364
DOI: https://doi.org/10.1115/1.4036011
Published Online: April 11, 2017
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Topics: Blades, Drops, Flow (Dynamics), Pressure, Stators, Steam turbines, Probes, Water, Rotors
Proceedings Papers

Unsteady Flow Field and Coarse Droplet Measurements in the Last Stage of a Low Pressure Steam Turbine With Supersonic Airfoils Near the Blade Tip

Ilias Bosdas, Michel Mansour, Anestis I. Kalfas, Reza S. Abhari, Shigeki Senoo
Proc. ASME. GT2016, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T26A039, June 13–17, 2016
Paper No: GT2016-57753
DOI: https://doi.org/10.1115/GT2016-57753
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Topics: Airfoils, Blades, Drops, Pressure, Steam turbines, Unsteady flow, Rotors, Probes, Stators, Water
Journal Articles

Unsteady Wet Steam Flow Field Measurements in the Last Stage of Low Pressure Steam Turbine

Ilias Bosdas, Michel Mansour, Anestis I. Kalfas, Reza S. Abhari, Shigeki Senoo
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2016, 138(3): 032601.
Paper No: GTP-15-1295
DOI: https://doi.org/10.1115/1.4031345
Published Online: September 22, 2015
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Topics: Flow (Dynamics), Pressure, Probes, Rotors, Steam turbines, Blades, Steam
Proceedings Papers

Unsteady Wet Steam Flow Field Measurements in the Last Stage of Low Pressure Steam Turbine

Ilias Bosdas, Michel Mansour, Anestis I. Kalfas, Reza S. Abhari, Shigeki Senoo
Proc. ASME. GT2015, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T26A033, June 15–19, 2015
Paper No: GT2015-43504
DOI: https://doi.org/10.1115/GT2015-43504
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Topics: Flow (Dynamics), Pressure, Steam, Steam turbines, Blades, Probes, Stress, Control systems, Fluctuations (Physics), Leakage
Proceedings Papers

Nuclear Steam Turbine With 60 inch Last Stage Blade

Motonari Haraguchi, Tateki Nakamura, Hideo Yoda, Takeshi Kudo, Shigeki Senoo
Proc. ASME. ICONE21, Volume 1: Plant Operations, Maintenance, Engineering, Modifications, Life Cycle and Balance of Plant; Nuclear Fuel and Materials; Radiation Protection and Nuclear Technology Applications, V001T01A042, July 29–August 2, 2013
Paper No: ICONE21-16600
DOI: https://doi.org/10.1115/ICONE21-16600
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Topics: Blades, Steam turbines, Steam, Water, Boiling water reactors, Countermeasures, Heavy water reactors, Nuclear power, Pressure, Pressurized water reactors
Proceedings Papers

Development of Design Method for Supersonic Turbine Aerofoils Near the Tip of Long Blades in Steam Turbines: Part 2 — Configuration Details and Validation

Shigeki Senoo, Hideki Ono
Proc. ASME. GT2013, Volume 5B: Oil and Gas Applications; Steam Turbines, V05BT25A002, June 3–7, 2013
Paper No: GT2013-94039
DOI: https://doi.org/10.1115/GT2013-94039
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Topics: Airfoils, Blades, Design methodology, Steam turbines, Turbines, Chords (Trusses), Design, Flow (Dynamics), Shock waves, Cascades (Fluid dynamics)
Proceedings Papers

The Effects of the Tangential Leans for the Last Stage Nozzles of Steam Turbine

Hideki Ono, Shigeki Senoo, Takeshi Kudo, Kenichi Murata
Proc. ASME. GT2013, Volume 5B: Oil and Gas Applications; Steam Turbines, V05BT25A043, June 3–7, 2013
Paper No: GT2013-95827
DOI: https://doi.org/10.1115/GT2013-95827
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Topics: Nozzles, Steam turbines, Blades, Inflow, Computational fluid dynamics, Flow separation, Pressure
Proceedings Papers

Steady and Unsteady Flow Measurements Under Low Load Conditions in a Low Pressure Model Steam Turbine

Kiyoshi Segawa, Shigeki Senoo, Hisashi Hamatake, Takeshi Kudo, Tateki Nakamura, Naoaki Shibashita
Proc. ASME. ICONE20-POWER2012, Volume 3: Thermal-Hydraulics; Turbines, Generators, and Auxiliaries, 833-839, July 30–August 3, 2012
Paper No: ICONE20-POWER2012-54862
DOI: https://doi.org/10.1115/ICONE20-POWER2012-54862
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Topics: Pressure, Steam turbines, Stress, Unsteady flow, Flow (Dynamics), Blades, Fluctuations (Physics), Probes, Pressure measurement, Turbines
Proceedings Papers

Development of Design Method for Supersonic Turbine Aerofoils Near the Tip of Long Blades in Steam Turbines: Part 1—Overall Configuration

Shigeki Senoo
Proc. ASME. GT2012, Volume 6: Oil and Gas Applications; Concentrating Solar Power Plants; Steam Turbines; Wind Energy, 355-365, June 11–15, 2012
Paper No: GT2012-68218
DOI: https://doi.org/10.1115/GT2012-68218
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Topics: Airfoils, Blades, Design methodology, Steam turbines, Turbines, Design, Flow (Dynamics), Chords (Trusses), Computational fluid dynamics, Pressure
Proceedings Papers

A Numerical Method for Turbulent Flows in Highly Staggered and Low Solidity Supersonic Turbine Cascades

Shigeki Senoo, Kazuya Sakakibara, Takeshi Kudo, Naoaki Shibashita
Proc. ASME. GT2011, Volume 7: Turbomachinery, Parts A, B, and C, 2289-2300, June 6–10, 2011
Paper No: GT2011-45450
DOI: https://doi.org/10.1115/GT2011-45450
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Topics: Numerical analysis, Turbines, Turbulence, Flow (Dynamics), Shock waves, Blades, Boundary-value problems, Reflection, Cascades (Fluid dynamics), Compressors
Journal Articles

Computations for Unsteady Compressible Flows in a Multistage Steam Turbine With Steam Properties at Low Load Operations

Shigeki Senoo, Kiyoshi Segawa, Hisashi Hamatake, Takeshi Kudo, Tateki Nakamura, Naoaki Shibashita
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research Papers
J. Eng. Gas Turbines Power. October 2011, 133(10): 103001.
DOI: https://doi.org/10.1115/1.4003069
Published Online: May 3, 2011
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Topics: Compressible flow, Flow (Dynamics), Pressure, Steam, Steam turbines, Stress, Unsteady flow, Computation, Blades, Temperature
Proceedings Papers

Computations for Unsteady Compressible Flows in a Multi-Stage Steam Turbine With Steam Properties at Low Load Operations

Shigeki Senoo, Kiyoshi Segawa, Hisashi Hamatake, Takeshi Kudo, Tateki Nakamura, Naoaki Shibashita
Proc. ASME. POWER2010, ASME 2010 Power Conference, 711-722, July 13–15, 2010
Paper No: POWER2010-27096
DOI: https://doi.org/10.1115/POWER2010-27096
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Topics: Compressible flow, Computation, Steam, Steam turbines, Stress, Flow (Dynamics), Pressure, Blades, Design, Fluids
Proceedings Papers

Three-Dimensional Design Method for Long Blades of Steam Turbines Using Fourth-Degree NURBS Surface

Shigeki Senoo, Koji Ogata, Tateki Nakamura, Naoaki Shibashita
Proc. ASME. GT2010, Volume 7: Turbomachinery, Parts A, B, and C, 2149-2158, June 14–18, 2010
Paper No: GT2010-22312
DOI: https://doi.org/10.1115/GT2010-22312
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Topics: Blades, Design methodology, Steam turbines, Airfoils, Design, Flow (Dynamics), Chords (Trusses), Computational fluid dynamics, Engineers, Fittings
Proceedings Papers

Non-Equilibrium Homogeneously Condensing Flow Analyses as Design Tools for Steam Turbines

Shigeki Senoo, Yoshio Shikano
Proc. ASME. FEDSM2002, Volume 2: Symposia and General Papers, Parts A and B, 843-850, July 14–18, 2002
Paper No: FEDSM2002-31191
DOI: https://doi.org/10.1115/FEDSM2002-31191
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Topics: Design, Equilibrium (Physics), Flow (Dynamics), Steam turbines, Blades, Condensation, Steam, Boundary-value problems, Drops, Phase transitions
Proceedings Papers

Numerical Simulations of Unsteady Wet Steam Flows With Non-Equilibrium Condensation in the Nozzle and the Steam Turbine

Shigeki Senoo, Alexander J. White
Proc. ASME. FEDSM2006, Volume 1: Symposia, Parts A and B, 757-767, July 17–20, 2006
Paper No: FEDSM2006-98202
DOI: https://doi.org/10.1115/FEDSM2006-98202
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Topics: Computer simulation, Condensation, Equilibrium (Physics), Flow (Dynamics), Nozzles, Steam, Steam turbines, Drops, Pressure, Blades