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Journal Articles

Turbine Vane Passage Cooling Experiments With a Close-Coupled Combustor-Turbine Interface Geometry—Part I: Describing the Flow

Kedar P. Nawathe, Aaditya R. Nath, Yong W. Kim, Terrence W. Simon
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2023, 145(10): 101005.
Paper No: TURBO-22-1251
https://doi.org/10.1115/1.4056439
Published Online: August 2, 2023
View Article titled, Turbine Vane Passage Cooling Experiments With a Close-Coupled Combustor-Turbine Interface Geometry—Part I: Describing the Flow
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Topics: Combustion chambers, Coolants, Cooling, Flow (Dynamics), Turbines, Vortices, Vorticity, Engines, Geometry
Journal Articles

Turbine Vane Passage Cooling Experiments With a Close-Coupled Combustor–Turbine Interface Geometry Part II: Describing the Coolant Coverage

Kedar P. Nawathe, Aaditya R. Nath, Yong W. Kim, Terrence W. Simon
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2023, 145(10): 101006.
Paper No: TURBO-22-1252
https://doi.org/10.1115/1.4062802
Published Online: August 2, 2023
View Article titled, Turbine Vane Passage Cooling Experiments With a Close-Coupled Combustor–Turbine Interface Geometry Part II: Describing the Coolant Coverage
Open the PDF for Turbine Vane Passage Cooling Experiments With a Close-Coupled Combustor–Turbine Interface Geometry Part II: Describing the Coolant Coverage in another window
Topics: Combustion chambers, Coolants, Cooling, Flow (Dynamics), Geometry, Phantom cooling, Pressure, Suction, Turbines, Vortices
Journal Articles

Turbine Vane Passage Experiments Documenting Evolution of Secondary Flows With Changes in Combustor Coolant Injection Flowrates

Kedar P. Nawathe, Yong W. Kim, Terrence W. Simon
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2023, 145(4): 041016.
Paper No: TURBO-22-1253
https://doi.org/10.1115/1.4056440
Published Online: January 9, 2023
View Article titled, Turbine Vane Passage Experiments Documenting Evolution of Secondary Flows With Changes in Combustor Coolant Injection Flowrates
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Topics: Combustion chambers, Coolants, Flow (Dynamics), Vortices, Turbines
Proceedings Papers

Turbine Vane Passage Cooling Experiments With a Close-Coupled Combustor-Turbine Interface Geometry Part 1: Describing the Flow

Kedar P. Nawathe, Aaditya R. Nath, Yong W. Kim, Terrence W. Simon
Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A008, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80225
https://doi.org/10.1115/GT2022-80225
View Paper titled, Turbine Vane Passage Cooling Experiments With a Close-Coupled Combustor-Turbine Interface Geometry Part 1: Describing the Flow
Open the PDF for Turbine Vane Passage Cooling Experiments With a Close-Coupled Combustor-Turbine Interface Geometry Part 1: Describing the Flow in another window
Topics: Combustion chambers, Cooling, Flow (Dynamics), Geometry, Turbines, Vortices
Proceedings Papers

Turbine Vane Passage Experiments Documenting Evolution of Secondary Flows With Changes in Combustor Coolant Injection Flowrates

Kedar P. Nawathe, Yong W. Kim, Terrence W. Simon
Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT11A006, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82697
https://doi.org/10.1115/GT2022-82697
View Paper titled, Turbine Vane Passage Experiments Documenting Evolution of Secondary Flows With Changes in Combustor Coolant Injection Flowrates
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Topics: Combustion chambers, Coolants, Flow (Dynamics), Turbines, Vortices
Proceedings Papers

Turbine Vane Passage Cooling Experiments With a Close-Coupled Combustor-Turbine Interface Geometry Part 2: Describing the Coolant Coverage

Kedar P. Nawathe, Aaditya R. Nath, Yong W. Kim, Terrence W. Simon
Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A023, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82203
https://doi.org/10.1115/GT2022-82203
View Paper titled, Turbine Vane Passage Cooling Experiments With a Close-Coupled Combustor-Turbine Interface Geometry Part 2: Describing the Coolant Coverage
Open the PDF for Turbine Vane Passage Cooling Experiments With a Close-Coupled Combustor-Turbine Interface Geometry Part 2: Describing the Coolant Coverage in another window
Topics: Combustion chambers, Coolants, Cooling, Flow (Dynamics), Geometry, Turbines, Vortices
Proceedings Papers

A Study of the Flow Field and Convective Heat Transfer in a Model Rotor-Stator Cavity

Ramendra P. Roy, Vivek Agarwal, Shankar Devasenathipathy, Junru He, Lars Meier, Yong W. Kim, Jeff Howe, Ko-Sun Ho
Proc. ASME. IMECE97, Heat Transfer: Volume 3, 97-107, November 16–21, 1997
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1997-0898
https://doi.org/10.1115/IMECE1997-0898
View Paper titled, A Study of the Flow Field and Convective Heat Transfer in a Model Rotor-Stator Cavity
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Topics: Cavities, Convection, Flow (Dynamics), Rotors, Stators, Disks, Computation, Cooling, Gas turbines, Pressure
Proceedings Papers

A Study of Particle Growth Using Light Scattering and Local Sampling in Flame Synthesis of Nano Particles

Jaegeol Cho, Jeonghoon Lee, Hyun W. Kim, Mansoo Choi
Proc. ASME. IMECE99, Heat Transfer: Volume 3, 171-178, November 14–19, 1999
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1999-1075
https://doi.org/10.1115/IMECE1999-1075
View Paper titled, A Study of Particle Growth Using Light Scattering and Local Sampling in Flame Synthesis of Nano Particles
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Topics: Flames, Light scattering, Nanoparticles, Particulate matter, Diffusion (Physics), Diffusion flames, Electromagnetic scattering, Fractals, Gas flow, Heat
Proceedings Papers

A Model-Based Prediction Approach to Understanding Tool Wear

W. Kim, T. Wong, P. Kwon
Proc. ASME. IMECE2001, Manufacturing Engineering, 205-214, November 11–16, 2001
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2001/MED-23322
https://doi.org/10.1115/IMECE2001/MED-23322
View Paper titled, A Model-Based Prediction Approach to Understanding Tool Wear
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Topics: Wear, Cutting tools, Phase transitions, Cutting, Machining, Steel
Journal Articles

Aero-Thermal Aspects of Film Cooled Nozzle Guide Vane Endwall—Part 1: Aerodynamics

Mahmood H. Alqefl, Kedar P. Nawathe, Pingting Chen, Rui Zhu, Yong W. Kim, Terrence W. Simon
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. December 2021, 143(12): 121009.
Paper No: TURBO-20-1347
https://doi.org/10.1115/1.4050329
Published Online: July 14, 2021
View Article titled, Aero-Thermal Aspects of Film Cooled Nozzle Guide Vane Endwall—Part 1: Aerodynamics
Open the PDF for Aero-Thermal Aspects of Film Cooled Nozzle Guide Vane Endwall—Part 1: Aerodynamics in another window
Topics: Aerodynamics, Combustion chambers, Coolants, Film cooling, Flow (Dynamics), Pressure, Vortices, Nozzle guide vanes, Cascades (Fluid dynamics), Cooling
Journal Articles

Aero-Thermal Aspects of Film Cooled Nozzle Guide Vane Endwall—Part 2: Thermal Measurements

Mahmood H. Alqefl, Kedar P. Nawathe, Pingting Chen, Rui Zhu, Yong W. Kim, Terrence W. Simon
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. December 2021, 143(12): 121010.
Paper No: TURBO-21-1012
https://doi.org/10.1115/1.4051556
Published Online: July 14, 2021
View Article titled, Aero-Thermal Aspects of Film Cooled Nozzle Guide Vane Endwall—Part 2: Thermal Measurements
Open the PDF for Aero-Thermal Aspects of Film Cooled Nozzle Guide Vane Endwall—Part 2: Thermal Measurements in another window
Topics: Combustion chambers, Coolants, Cooling, Film cooling, Flow (Dynamics), Vortices, Nozzle guide vanes, Pressure
Journal Articles

Nozzle Passage Endwall Effectiveness Values With Various Combustor Coolant Flowrates—Part 1: Flowfield Velocity and Coolant Concentration Measurements

Kedar P. Nawathe, Rui Zhu, Enci Lin, Yong W. Kim, Terrence W. Simon
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2021, 143(4): 041009.
Paper No: TURBO-20-1327
https://doi.org/10.1115/1.4050070
Published Online: March 24, 2021
View Article titled, Nozzle Passage Endwall Effectiveness Values With Various Combustor Coolant Flowrates—Part 1: Flowfield Velocity and Coolant Concentration Measurements
Open the PDF for Nozzle Passage Endwall Effectiveness Values With Various Combustor Coolant Flowrates—Part 1: Flowfield Velocity and Coolant Concentration Measurements in another window
Topics: Coolants, Flow (Dynamics), Combustion chambers, Vortices, Vorticity
Journal Articles

Nozzle Passage Endwall Effectiveness Values With Various Combustor Coolant Flowrates—Part 2: Endwall and Vicinity Surface Effectiveness Measurements

Kedar P. Nawathe, Rui Zhu, Enci Lin, Yong W. Kim, Terrence W. Simon
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2021, 143(4): 041010.
Paper No: TURBO-20-1345
https://doi.org/10.1115/1.4050071
Published Online: March 24, 2021
View Article titled, Nozzle Passage Endwall Effectiveness Values With Various Combustor Coolant Flowrates—Part 2: Endwall and Vicinity Surface Effectiveness Measurements
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Topics: Coolants, Cooling, Flow (Dynamics), Suction, Pressure, Combustion chambers
Proceedings Papers

Trajectory Synthesis and Redundancy Resolution for High Speed Point to Point Motions of Redundant Robot Manipulators

W. Kim, J. Rastegar
Proc. ASME. DETC97, Volume 2: 23rd Design Automation Conference, V002T29A040, September 14–17, 1997
Publisher: American Society of Mechanical Engineers
Paper No: DETC97/DAC-3864
https://doi.org/10.1115/DETC97/DAC-3864
View Paper titled, Trajectory Synthesis and Redundancy Resolution for High Speed Point to Point Motions of Redundant Robot Manipulators
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Topics: Manipulators, Redundancy (Engineering), Resolution (Optics), Trajectories (Physics), Degrees of freedom, Kinematics, Vibration, Excitation, Nonlinear dynamics, Redundant manipulators
Proceedings Papers

Robot Manipulator Trajectory Synthesis for Minimal Vibrational Excitation

W. Kim, J. Rastegar
Proc. ASME. DETC97, Volume 2: 23rd Design Automation Conference, V002T29A094, September 14–17, 1997
Publisher: American Society of Mechanical Engineers
Paper No: DETC97/DAC-3862
https://doi.org/10.1115/DETC97/DAC-3862
View Paper titled, Robot Manipulator Trajectory Synthesis for Minimal Vibrational Excitation
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Topics: Excitation, Manipulators, Trajectories (Physics), Vibration, Nonlinear dynamics
Journal Articles

Effects of Endwall Film Coolant Flowrate on Secondary Flows and Coolant Mixing in a First Stage Nozzle Guide Vane

Mahmood H. Alqefl, Kedar P. Nawathe, Pingting Chen, Rui Zhu, Yong W. Kim, Terrence W. Simon
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2021, 143(3): 031003.
Paper No: TURBO-20-1326
https://doi.org/10.1115/1.4049852
Published Online: February 12, 2021
View Article titled, Effects of Endwall Film Coolant Flowrate on Secondary Flows and Coolant Mixing in a First Stage Nozzle Guide Vane
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Topics: Combustion chambers, Coolants, Film cooling, Flow (Dynamics), Vortices, Pressure, Cooling, Nozzle guide vanes, Turbines
Proceedings Papers

A Vector Oriented Implementation Method for Efficient Dynamic Simulation of Multibody Vehicle Models

D. S. Bae, H. W. Kim, H. Yae
Proc. ASME. DETC99, Volume 7A: 17th Biennial Conference on Mechanical Vibration and Noise, 213-219, September 12–16, 1999
Publisher: American Society of Mechanical Engineers
Paper No: DETC99/VIB-8209
https://doi.org/10.1115/DETC99/VIB-8209
View Paper titled, A Vector Oriented Implementation Method for Efficient Dynamic Simulation of Multibody Vehicle Models
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Topics: Simulation, Vehicles, Chords (Trusses), Algorithms, Dynamic analysis, Equations of motion, Computation, Computers, Engineering prototypes, Jacobian matrices
Proceedings Papers

Aero-Thermal Aspects of Film Cooled Nozzle Guide Vane Endwalls: Part 2 — Thermal Measurements

Mahmood H. Alqefl, Kedar P. Nawathe, Pingting Chen, Rui Zhu, Yong W. Kim, Terrence W. Simon
Proc. ASME. GT2020, Volume 7B: Heat Transfer, V07BT12A041, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15076
https://doi.org/10.1115/GT2020-15076
View Paper titled, Aero-Thermal Aspects of Film Cooled Nozzle Guide Vane Endwalls: Part 2 — Thermal Measurements
Open the PDF for Aero-Thermal Aspects of Film Cooled Nozzle Guide Vane Endwalls: Part 2 — Thermal Measurements in another window
Topics: Aerodynamics, Film cooling, Flow (Dynamics), Nozzle guide vanes, Turbines, Vortices, Cooling, Combustion chambers, Coolants, Engine design
Proceedings Papers

Nozzle Passage Endwall Effectiveness Values With Various Combustor Coolant Flow Rates: Part 2 — Endwall and Vicinity Surface Effectiveness Measurements

Kedar P. Nawathe, Rui Zhu, Enci Lin, Yong W. Kim, Terrence W. Simon
Proc. ASME. GT2020, Volume 7B: Heat Transfer, V07BT12A055, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15581
https://doi.org/10.1115/GT2020-15581
View Paper titled, Nozzle Passage Endwall Effectiveness Values With Various Combustor Coolant Flow Rates: Part 2 — Endwall and Vicinity Surface Effectiveness Measurements
Open the PDF for Nozzle Passage Endwall Effectiveness Values With Various Combustor Coolant Flow Rates: Part 2 — Endwall and Vicinity Surface Effectiveness Measurements in another window
Topics: Combustion chambers, Coolants, Cooling, Flow (Dynamics), Nozzles
Proceedings Papers

Effects of Endwall Film Coolant Flow Rate on Secondary Flows and Coolant Mixing in a First Stage Nozzle Guide Vane

Mahmood H. Alqefl, Kedar P. Nawathe, Pingting Chen, Rui Zhu, Yong W. Kim, Terrence W. Simon
Proc. ASME. GT2020, Volume 7B: Heat Transfer, V07BT12A060, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15746
https://doi.org/10.1115/GT2020-15746
View Paper titled, Effects of Endwall Film Coolant Flow Rate on Secondary Flows and Coolant Mixing in a First Stage Nozzle Guide Vane
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Topics: Aerodynamics, Coolants, Film cooling, Flow (Dynamics), Nozzle guide vanes, Turbines, Vortices