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Journal Articles

Performance Improvement of Cross-Flow Turbine With a Cylindrical Cavity and Guide Wall

Naoto Ogawa, Mirei Goto, Shouichiro Iio, Takaya Kitahora, Young-Do Choi, Morihito Inagaki
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. December 2021, 143(12): 121104.
Paper No: FE-21-1211
https://doi.org/10.1115/1.4052046
Published Online: September 1, 2021
View Article titled, Performance Improvement of Cross-Flow Turbine With a Cylindrical Cavity and Guide Wall
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Topics: Cavities, Cross-flow, Flow (Dynamics), Turbines, Angular momentum, Flow visualization, Testing performance
Proceedings Papers

Global Sensitivity Analysis for Stay Vane and Casing Design of Reaction Hydraulic Turbine

Hyunkyoo Cho, Ujjwal Shrestha, Young-Do Choi, Jungwan Park
Proc. ASME. AJKFluids2019, Volume 3A: Fluid Applications and Systems, V03AT03A016, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-4684
https://doi.org/10.1115/AJKFluids2019-4684
View Paper titled, Global Sensitivity Analysis for Stay Vane and Casing Design of Reaction Hydraulic Turbine
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Topics: Design, Hydraulic turbines, Sensitivity analysis
Proceedings Papers

Optimal Design of Reaction Hydro Turbine Model Stay Vane by Vane Angle and Thickness Distribution

Ujjwal Shrestha, Jungwan Park, Young-Do Choi
Proc. ASME. AJKFluids2019, Volume 3A: Fluid Applications and Systems, V03AT03A013, July 28–August 1, 2019
Publisher: American Society of Mechanical Engineers
Paper No: AJKFluids2019-4611
https://doi.org/10.1115/AJKFluids2019-4611
View Paper titled, Optimal Design of Reaction Hydro Turbine Model Stay Vane by Vane Angle and Thickness Distribution
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Topics: Design, Genetic algorithms, Hydraulic turbines, Optimization, Flow (Dynamics), Turbines, Pump turbines, Turbomachinery, Guide vanes, Manufacturing
Proceedings Papers

Slot Misalignment Measurement for Archive Data Storage Using Dual Sensing Method

Sung-Yong Lim, Hyunseok Yang, SeungHon Yoo, Han Baek Lee, Young Do Choi
Proc. ASME. ISPS2013, ASME 2013 Conference on Information Storage and Processing Systems, V001T09A001, June 24–25, 2013
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2013-2833
https://doi.org/10.1115/ISPS2013-2833
View Paper titled, Slot Misalignment Measurement for Archive Data Storage Using Dual Sensing Method
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Topics: Data storage systems, Disks, Imaging, Lenses (Optics), Robots, Sensors
Journal Articles

Effect of J-Groove on the Suppression of Swirl Flow in a Conical Diffuser

Junichi Kurokawa, Hiroshi Imamura, Young-Do Choi
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. July 2010, 132(7): 071101.
https://doi.org/10.1115/1.4001899
Published Online: June 29, 2010
View Article titled, Effect of J-Groove on the Suppression of Swirl Flow in a Conical Diffuser
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Topics: Diffusers, Flow (Dynamics), Pressure, Vortices
Proceedings Papers

Internal Flow Characteristics of Cross-Flow Hydraulic Turbine With the Variation of Nozzle Shape

Young-Do Choi, Jea-Ik Lim, You-Taek Kim, Young-Ho Lee
Proc. ASME. FEDSM2007, Volume 2: Fora, Parts A and B, 1089-1094, July 30–August 2, 2007
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2007-37541
https://doi.org/10.1115/FEDSM2007-37541
View Paper titled, Internal Flow Characteristics of Cross-Flow Hydraulic Turbine With the Variation of Nozzle Shape
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Topics: Cross-flow, Hydraulic turbines, Internal flow, Nozzles, Shapes, Turbines, Blades, Computational fluid dynamics, Impulse (Physics), Performance characterization
Journal Articles

Suppression of Cavitation in Inducers by J-Grooves

Young-Do Choi, Junichi Kurokawa, Hiroshi Imamura
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Technical Papers
J. Fluids Eng. January 2007, 129(1): 15–22.
https://doi.org/10.1115/1.2375126
Published Online: July 3, 2006
View Article titled, Suppression of Cavitation in Inducers by J-Grooves
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Topics: Cavitation, Flow (Dynamics), Impellers, Pumps, Suction, Blades
Journal Articles

Performance and Internal Flow Characteristics of a Very Low Specific Speed Centrifugal Pump

Young-Do Choi, Junichi Kurokawa, Jun Matsui
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Technical Papers
J. Fluids Eng. March 2006, 128(2): 341–349.
https://doi.org/10.1115/1.2169815
Published Online: September 5, 2005
View Article titled, Performance and Internal Flow Characteristics of a Very Low Specific Speed Centrifugal Pump
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Topics: Flow (Dynamics), Impellers, Internal flow, Pumps, Clearances (Engineering), Centrifugal pumps