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Proceedings Papers

Self-Organization of Unsteady Full-Annulus Flows in a Gas Turbine Compressor Under Operating Conditions

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Yasuharu Hagita, Riku Hayakawa, Hironori Miyazawa, Takashi Furusawa, Satoru Yamamoto
Proc. ASME. GT2023, Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, V006T08A003, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101937
https://doi.org/10.1115/GT2023-101937
View Paper titled, Self-Organization of Unsteady Full-Annulus Flows in a Gas Turbine Compressor Under Operating Conditions
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Topics: Annulus, Compressors, Computation, Flow (Dynamics), Gas turbines, Machine learning, Self-organization, Stress
Proceedings Papers

The Effect of Partial-Load Operation on a Gas Turbine Compressor of an Advanced Combined Cycle Power Plant

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Yasuharu Hagita, Hironori Miyazawa, Takashi Furusawa, Satoru Yamamoto, Koichi Yonezawa, Shuichi Umezawa, Shuichi Ohmori, Takeshi Suzuki
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A006, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80251
https://doi.org/10.1115/GT2022-80251
View Paper titled, The Effect of Partial-Load Operation on a Gas Turbine Compressor of an Advanced Combined Cycle Power Plant
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Topics: Combined cycle power stations, Compressors, Gas turbines, Stress, Unsteady flow
Proceedings Papers

Numerical Modeling of Water Droplets in Compressible Two-Phase Flows Based on Eulerian-Eulerian Method

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Takashi Furusawa, Yasuhiro Sasao, Ryo Takata, Hironori Miyazawa, Satoru Yamamoto
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A009, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81246
https://doi.org/10.1115/GT2022-81246
View Paper titled, Numerical Modeling of Water Droplets in Compressible Two-Phase Flows Based on Eulerian-Eulerian Method
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Topics: Computer simulation, Drops, Flow (Dynamics), Two-phase flow, Water
Journal Articles

Detection of Machinery Failure Signs From Big Time-Series Data Obtained by Flow Simulation of Intermediate-Pressure Steam Turbines

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Kazuhiko Komatsu, Hironori Miyazawa, Cheng Yiran, Masayuki Sato, Takashi Furusawa, Satoru Yamamoto, Hiroaki Kobayashi
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2022, 144(1): 011007.
Paper No: GTP-21-1364
https://doi.org/10.1115/1.4052142
Published Online: October 13, 2021
View Articletitled, Detection of Machinery Failure Signs From Big Time-Series Data Obtained by Flow Simulation of Intermediate-Pressure Steam Turbines
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Topics: Blades, Computer simulation, Failure, Flow (Dynamics), Machinery, Pressure, Rotors, Stators, Steam turbines, Time series
Proceedings Papers

Numerical Investigation of Supercritical N -Dodecane Flows in a Heated Circular Pipe With Thermal Cracking

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Shuto Yatsuyanagi, Takashi Furusawa, Satoru Yamamoto, Takuo Onodera, Sadatake Tomioka
Proc. ASME. FEDSM2021, Volume 1: Aerospace Engineering Division Joint Track; Computational Fluid Dynamics, V001T02A042, August 10–12, 2021
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2021-65261
https://doi.org/10.1115/FEDSM2021-65261
View Paper titled, Numerical Investigation of Supercritical N -Dodecane Flows in a Heated Circular Pipe With Thermal Cracking
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Topics: Cracking (Materials), Flow (Dynamics), Fracture (Process), Pipes
Proceedings Papers

Turbulent Flow Simulation of Supercritical Hydrothermal Synthesis in T-Shaped Channel

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Takashi Furusawa, Kenta Matsui, Shuto Yatsuyanagi, Satoru Yamamoto, Akira Yoko, Tadafumi Adschiri
Proc. ASME. FEDSM2021, Volume 1: Aerospace Engineering Division Joint Track; Computational Fluid Dynamics, V001T02A045, August 10–12, 2021
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2021-66023
https://doi.org/10.1115/FEDSM2021-66023
View Paper titled, Turbulent Flow Simulation of Supercritical Hydrothermal Synthesis in T-Shaped Channel
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Topics: Flow (Dynamics), Reynolds-averaged Navier–Stokes equations, Simulation, Turbulence, Water
Proceedings Papers

Detection of Machinery Failure Signs From Big Time-Series Data Obtained by Flow Simulation of Intermediate-Pressure Steam Turbines

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Kazuhiko Komatsu, Hironori Miyazawa, Cheng Yiran, Masayuki Sato, Takashi Furusawa, Satoru Yamamoto, Hiroaki Kobayashi
Proc. ASME. GT2021, Volume 4: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage; Education; Electric Power, V004T09A002, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58698
https://doi.org/10.1115/GT2021-58698
View Paper titled, Detection of Machinery Failure Signs From Big Time-Series Data Obtained by Flow Simulation of Intermediate-Pressure Steam Turbines
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Topics: Failure, Flow simulation, Machinery, Pressure, Steam turbines, Time series
Proceedings Papers

Wetness Measurement and Droplet Transport Analysis in Actual Steam Test on a Scaled Low Pressure Turbine

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Yasuhiro Sasao, Kiyoshi Segawa, Takeshi Kudo, Ryo Takata, Masaki Osako, Satoru Yamamoto
Proc. ASME. GT2020, Volume 9: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Steam Turbine, V009T23A025, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-16117
https://doi.org/10.1115/GT2020-16117
View Paper titled, Wetness Measurement and Droplet Transport Analysis in Actual Steam Test on a Scaled Low Pressure Turbine
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Topics: Drops, Pressure, Steam, Turbines, Blades, Computational fluid dynamics, Probes, Steam turbines, Erosion, Errors
Proceedings Papers

Unsteady Flow Simulation Through Stator-Rotor Blade Rows in Intermediate-Pressure Steam Turbines With Cutback Blades

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Hironori Miyazawa, Akihiro Uemura, Takashi Furusawa, Satoru Yamamoto, Koichi Yonezawa, Shuichi Umezawa, Shuichi Ohmori, Takeshi Suzuki
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A018, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14937
https://doi.org/10.1115/GT2020-14937
View Paper titled, Unsteady Flow Simulation Through Stator-Rotor Blade Rows in Intermediate-Pressure Steam Turbines With Cutback Blades
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Topics: Blades, Pressure, Rotors, Simulation, Stators, Steam turbines, Unsteady flow, Maintenance, Flow (Dynamics), Fracture (Process)
Proceedings Papers

Numerical Simulation of Unsteady Moist-Air Flows Through Whole-Annulus Rotor Blade Rows in Transonic Compressor

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Shota Moriguchi, Takuro Endo, Hironori Miyazawa, Takashi Furusawa, Satoru Yamamoto
Proc. ASME. AJKFluids2019, Volume 5: Multiphase Flow, V005T05A081, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-4782
https://doi.org/10.1115/AJKFluids2019-4782
View Paper titled, Numerical Simulation of Unsteady Moist-Air Flows Through Whole-Annulus Rotor Blade Rows in Transonic Compressor
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Topics: Annulus, Blades, Compressors, Computer simulation, Flow (Dynamics), Rotors, Drops, Absorption, Evaporation, Latent heat
Proceedings Papers

Numerical Simulation of Supercritical Octane Flows in a Heated Circular Tube With Simple Thermal Cracking Model

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Takashi Furusawa, Noriyuki Taki, Shuto Yatsuyanagi, Satoru Yamamoto, Takuto Miyaura, Sadatake Tomioka
Proc. ASME. AJKFluids2019, Volume 2: Computational Fluid Dynamics, V002T02A062, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-4797
https://doi.org/10.1115/AJKFluids2019-4797
View Paper titled, Numerical Simulation of Supercritical Octane Flows in a Heated Circular Tube With Simple Thermal Cracking Model
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Topics: Computer simulation, Cracking (Materials), Flow (Dynamics), Fracture (Process), Temperature, Wall temperature, Fluids, Numerical analysis, Computer software, Databases
Proceedings Papers

Effect of Blade Secular Change on Unsteady Flows in Middle Pressure First-Stage Steam Turbines

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Akihiro Uemura, Hironori Miyazawa, Takashi Furusawa, Satoru Yamamoto, Koichi Yonezawa, Shuichi Umezawa
Proc. ASME. GT2019, Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines, V008T29A015, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90644
https://doi.org/10.1115/GT2019-90644
View Paper titled, Effect of Blade Secular Change on Unsteady Flows in Middle Pressure First-Stage Steam Turbines
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Topics: Blades, Pressure, Steam turbines, Unsteady flow, Maintenance, Rotors, Stators, Accidents, Boilers, Coal
Proceedings Papers

Optical Coarse Droplet Measurement and Wet Loss Analysis on the Wet Air Flow Through the Subsonic Blade Cascade Channel

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Yasuhiro Sasao, Ryo Takata, Satoshi Miyake, Soichiro Tabata, Satoru Yamamoto
Proc. ASME. GT2019, Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines, V008T29A031, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91928
https://doi.org/10.1115/GT2019-91928
View Paper titled, Optical Coarse Droplet Measurement and Wet Loss Analysis on the Wet Air Flow Through the Subsonic Blade Cascade Channel
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Topics: Air flow, Blades, Cascades (Fluid dynamics), Drops, Flow (Dynamics), Vortices, Water, Corners (Structural elements), Flowmeters, Particulate matter
Proceedings Papers

Wetness Effect on Transonic Moist-Air Flow Through a Compressor Rotor

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Shota Moriguchi, Hironori Miyazawa, Takashi Furusawa, Satoru Yamamoto
Proc. ASME. FEDSM2018, Volume 3: Fluid Machinery; Erosion, Slurry, Sedimentation; Experimental, Multiscale, and Numerical Methods for Multiphase Flows; Gas-Liquid, Gas-Solid, and Liquid-Solid Flows; Performance of Multiphase Flow Systems; Micro/Nano-Fluidics, V003T18A007, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2018-83422
https://doi.org/10.1115/FEDSM2018-83422
View Paper titled, Wetness Effect on Transonic Moist-Air Flow Through a Compressor Rotor
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Topics: Compressors, Flow (Dynamics), Rotors, Evaporation, Drops, Water, Aerodynamics, Cooling, NASA, Pressure
Proceedings Papers

Numerical Method for Simulating High Pressure CO 2 Flows With Nonequilibrium Condensation

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Takashi Furusawa, Hironori Miyazawa, Shota Moriguchi, Satoru Yamamoto
Proc. ASME. GT2018, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A012, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75592
https://doi.org/10.1115/GT2018-75592
View Paper titled, Numerical Method for Simulating High Pressure CO 2 Flows With Nonequilibrium Condensation
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Topics: Carbon dioxide, Condensation, Flow (Dynamics), High pressure (Physics), Numerical analysis, Nucleation (Physics), Pressure, Condensed matter, Drops, Nozzles
Proceedings Papers

Numerical Method for Simulating Flows of Supercritical CO2 Compressor With Nonequilibrium Condensation

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Takashi Furusawa, Hironori Miyazawa, Satoru Yamamoto
Proc. ASME. GT2016, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T36A003, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56431
https://doi.org/10.1115/GT2016-56431
View Paper titled, Numerical Method for Simulating Flows of Supercritical CO2 Compressor With Nonequilibrium Condensation
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Topics: Compressors, Condensation, Flow (Dynamics), Numerical analysis, Supercritical carbon dioxide, Pressure, Cascades (Fluid dynamics), Carbon dioxide, Drops, Fluids
Proceedings Papers

Unsteady Force on Multi-Stage and Multi-Passage Turbine Long Blade Rows Induced by Wet-Steam Flows

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Hironori Miyazawa, Takashi Furusawa, Satoru Yamamoto, Yasuhiro Sasao, Hiroharu Ooyama
Proc. ASME. GT2016, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T26A011, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56360
https://doi.org/10.1115/GT2016-56360
View Paper titled, Unsteady Force on Multi-Stage and Multi-Passage Turbine Long Blade Rows Induced by Wet-Steam Flows
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Topics: Blades, Flow (Dynamics), Steam, Turbines, Pressure, Rotors, Stators, Shock (Mechanics), Flow simulation, Steam turbines
Proceedings Papers

Numerical Simulation of Three-Dimensional Supercritical Water Flows in Hydrothermal Synthesis Reactors With Arbitrary Geometry

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Takashi Furusawa, Shibo Qi, Satoru Yamamoto
Proc. ASME. AJKFluids2015, Volume 1A: Symposia, Part 2, V01AT03A002, July 26–31, 2015
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2015-03096
https://doi.org/10.1115/AJKFluids2015-03096
View Paper titled, Numerical Simulation of Three-Dimensional Supercritical Water Flows in Hydrothermal Synthesis Reactors With Arbitrary Geometry
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Topics: Computer simulation, Flow (Dynamics), Geometry, Water, Pipes, Buoyancy, Numerical analysis, Temperature, Vortices, Water temperature
Proceedings Papers

Effects of Return Channel With Splitter Vanes on Performance of Multistage Centrifugal Compressor

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Manabu Yagi, Takahiro Nishioka, Hiromi Kobayashi, Hideo Nishida, Satoru Yamamoto
Proc. ASME. GT2015, Volume 2C: Turbomachinery, V02CT42A012, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42442
https://doi.org/10.1115/GT2015-42442
View Paper titled, Effects of Return Channel With Splitter Vanes on Performance of Multistage Centrifugal Compressor
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Topics: Compressors, Flow (Dynamics), Design, Impellers, Mach number, Suction, Testing performance
Proceedings Papers

Aerodynamic and Structural Numerical Investigation of Unsteady Flow Effects on Last Stage Blades

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Tadashi Tanuma, Hiroshi Okuda, Gaku Hashimoto, Satoru Yamamoto, Naoki Shibukawa, Kenichi Okuno, Hiroshi Saeki, Tomohiko Tsukuda
Proc. ASME. GT2015, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T26A035, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43848
https://doi.org/10.1115/GT2015-43848
View Paper titled, Aerodynamic and Structural Numerical Investigation of Unsteady Flow Effects on Last Stage Blades
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Topics: Blades, Unsteady flow, Rotating blades, Diffusers, Exhaust systems, Pressure, Boundary-value problems, Finite element analysis, Flow (Dynamics), Steam turbines