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Proceedings Papers

Non-Axisymmetric Flows and Rotordynamic Forces in an Eccentric Shrouded Centrifugal Compressor: Part 1 — Measurement

Jieun Song, Suyong Kim, Tae Choon Park, Bong-Jun Cha, Dong Hun Lim, Joo Sung Hong, Tae Wook Lee, Seung Jin Song
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A007, June 17–21, 2019
Paper No: GT2019-90237
DOI: https://doi.org/10.1115/GT2019-90237
View Paper titled, Non-Axisymmetric Flows and Rotordynamic Forces in an Eccentric Shrouded Centrifugal Compressor: Part 1 — Measurement
Click here to open pdf in another window PDF for Non-Axisymmetric Flows and Rotordynamic Forces in an Eccentric Shrouded Centrifugal Compressor: Part 1 — Measurement
Topics: Compressors, Flow (Dynamics), Stiffness, Pressure, Cavities, Pressure measurement
Proceedings Papers

Conjugate Heat Transfer Analysis to Assess Overall Cooling Effectiveness of High Pressure Turbine Nozzle With Optimized Film Cooling Hole Arrangements

Young Seok Kang, Dong-Ho Rhee, Sanga Lee, Bong Jun Cha
Proc. ASME. GT2019, Volume 5A: Heat Transfer, V05AT10A008, June 17–21, 2019
Paper No: GT2019-91194
DOI: https://doi.org/10.1115/GT2019-91194
View Paper titled, Conjugate Heat Transfer Analysis to Assess Overall Cooling Effectiveness of High Pressure Turbine Nozzle With Optimized Film Cooling Hole Arrangements
Click here to open pdf in another window PDF for Conjugate Heat Transfer Analysis to Assess Overall Cooling Effectiveness of High Pressure Turbine Nozzle With Optimized Film Cooling Hole Arrangements
Topics: Cooling, Film cooling, Heat transfer, High pressure (Physics), Nozzles, Turbines, Pressure, Temperature, Design, Coolants
Journal Articles

Non-Axisymmetric Flows and Rotordynamic Forces in an Eccentric Shrouded Centrifugal Compressor—Part 1: Measurement

Jieun Song, Suyong Kim, Tae Choon Park, Bong-Jun Cha, Dong Hun Lim, Joo Sung Hong, Tae Wook Lee, Seung Jin Song
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2019, 141(11): 111014.
Paper No: GTP-19-1475
DOI: https://doi.org/10.1115/1.4044874
Published Online: October 16, 2019
View Article titled, Non-Axisymmetric Flows and Rotordynamic Forces in an Eccentric Shrouded Centrifugal Compressor—Part 1: Measurement
Click here to open pdf in another window PDF for Non-Axisymmetric Flows and Rotordynamic Forces in an Eccentric Shrouded Centrifugal Compressor—Part 1: Measurement
Topics: Cavities, Compressors, Flow (Dynamics), Pressure, Stiffness, Rotors, Instrumentation
Proceedings Papers

Overall Cooling Effectiveness Measurements on Pressure Side Surface of the Nozzle Guide Vane With Optimized Film Cooling Hole Arrangements

Dong-Ho Rhee, Young Seok Kang, Bong Jun Cha, Sanga Lee
Proc. ASME. GT2017, Volume 5A: Heat Transfer, V05AT10A001, June 26–30, 2017
Paper No: GT2017-63421
DOI: https://doi.org/10.1115/GT2017-63421
View Paper titled, Overall Cooling Effectiveness Measurements on Pressure Side Surface of the Nozzle Guide Vane With Optimized Film Cooling Hole Arrangements
Click here to open pdf in another window PDF for Overall Cooling Effectiveness Measurements on Pressure Side Surface of the Nozzle Guide Vane With Optimized Film Cooling Hole Arrangements
Topics: Cooling, Film cooling, Nozzle guide vanes, Pressure, Optimization, Flow (Dynamics), Additive manufacturing, Aerospace industry, Cascades (Fluid dynamics), Chords (Trusses)
Proceedings Papers

Film Cooling Performance Improvement With Optimized Hole Arrangements on Pressure Side Surface of Nozzle Guide Vane: Part II — Experimental Validation

Dong-Ho Rhee, Young Seok Kang, Bong Jun Cha, Jeong-Seek Kang, Sanga Lee, Kwanjung Yee
Proc. ASME. GT2016, Volume 5C: Heat Transfer, V05CT12A011, June 13–17, 2016
Paper No: GT2016-57978
DOI: https://doi.org/10.1115/GT2016-57978
View Paper titled, Film Cooling Performance Improvement With Optimized Hole Arrangements on Pressure Side Surface of Nozzle Guide Vane: Part II — Experimental Validation
Click here to open pdf in another window PDF for Film Cooling Performance Improvement With Optimized Hole Arrangements on Pressure Side Surface of Nozzle Guide Vane: Part II — Experimental Validation
Topics: Film cooling, Nozzle guide vanes, Pressure, Flow (Dynamics), Coolants, Cascades (Fluid dynamics), Computational fluid dynamics, Cooling, Optimization, Turbines
Proceedings Papers

Film Cooling Performance Improvement With Optimized Hole Arrangement on Pressure Side Surface of Nozzle Guide Vane: Part I — Optimization and Numerical Investigation

Sanga Lee, Dong-Ho Rhee, Bong Jun Cha, Kwanjung Yee
Proc. ASME. GT2016, Volume 5C: Heat Transfer, V05CT12A010, June 13–17, 2016
Paper No: GT2016-57975
DOI: https://doi.org/10.1115/GT2016-57975
View Paper titled, Film Cooling Performance Improvement With Optimized Hole Arrangement on Pressure Side Surface of Nozzle Guide Vane: Part I — Optimization and Numerical Investigation
Click here to open pdf in another window PDF for Film Cooling Performance Improvement With Optimized Hole Arrangement on Pressure Side Surface of Nozzle Guide Vane: Part I — Optimization and Numerical Investigation
Topics: Film cooling, Nozzle guide vanes, Optimization, Pressure, Shapes, Nozzles, Turbines, Cooling, Design, Genetic algorithms
Proceedings Papers

Aerodynamic Optimization of Axial Turbine Tip Cavity With Approximation Model

Young-Seok Kang, Dong-Ho Rhee, Chun-Taek Kim, Bong-Jun Cha
Proc. ASME. TBTS2013, ASME 2013 Turbine Blade Tip Symposium, V001T01A005, September 30–October 3, 2013
Paper No: TBTS2013-2079
DOI: https://doi.org/10.1115/TBTS2013-2079
View Paper titled, Aerodynamic Optimization of Axial Turbine Tip Cavity With Approximation Model
Click here to open pdf in another window PDF for Aerodynamic Optimization of Axial Turbine Tip Cavity With Approximation Model
Topics: Approximation, Cavities, Optimization, Turbines, Clearances (Engineering), Blades, Design, Leakage flows, Computational fluid dynamics, Flow (Dynamics)
Proceedings Papers

Modeling and Experimental Evaluation on Torque Loss in Turbine Test Rig

Jeong-Seek Kang, Bong-Jun Cha, Iee-Ki Ahn
Proc. ASME. GT2008, Volume 6: Turbomachinery, Parts A, B, and C, 1079-1085, June 9–13, 2008
Paper No: GT2008-50341
DOI: https://doi.org/10.1115/GT2008-50341
View Paper titled, Modeling and Experimental Evaluation on Torque Loss in Turbine Test Rig
Click here to open pdf in another window PDF for Modeling and Experimental Evaluation on Torque Loss in Turbine Test Rig
Topics: Modeling, Torque, Turbines, Bearings, Temperature, Dynamometers, Disks, Particle spin, Rotation, Spin (Aerodynamics)
Proceedings Papers

Study on the Hydraulic Performance of a Turbopump Inducer

Chang Ho Choi, Soon-Sam Hong, Bong Jun Cha, Sooseok Yang
Proc. ASME. FEDSM2003, Volume 2: Symposia, Parts A, B, and C, 571-576, July 6–10, 2003
Paper No: FEDSM2003-45095
DOI: https://doi.org/10.1115/FEDSM2003-45095
View Paper titled, Study on the Hydraulic Performance of a Turbopump Inducer
Click here to open pdf in another window PDF for Study on the Hydraulic Performance of a Turbopump Inducer
Topics: Experimental methods, Flow (Dynamics), Shapes, Visualization