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Journal Articles

Optimization of a Tip Appendage for the Control of Tip Leakage Vortices in Axial Flow Fans

Thomas O. Meyer, Sybrand J. van der Spuy, Christiaan J. Meyer, Alessandro Corsini
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. October 2022, 144(10): 101006.
Paper No: TURBO-21-1229
DOI: https://doi.org/10.1115/1.4054069
Published Online: April 19, 2022
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Topics: Design, Optimization, Vortices, Blades, Pressure, Axial flow, Leakage
Proceedings Papers

Preliminary Evaluation of the 24 Ft. Diameter Fan Performance In the MinWaterCSP Large Cooling Systems Test Facility

S. J. van der Spuy, D. N. J. Els, L. Tieghi, G. Delibra, A. Corsini, F. G. Louw, A. Zapke, C. J. Meyer
Proc. ASME. GT2021, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Wind Energy; Scholar Lecture, V001T10A005, June 7–11, 2021
Paper No: GT2021-59130
DOI: https://doi.org/10.1115/GT2021-59130
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Topics: Blades, Cooling systems, Pressure, Test facilities, Computational fluid dynamics, Rotors, Actuators, Axial flow, Concentrating solar power, Condensers (steam plant)
Proceedings Papers

Optimization of a Tip Appendage for the Control of Tip Leakage Vortices in Axial Flow Fans

Thomas O. Meyer, Sybrand J. van der Spuy, Christiaan J. Meyer, Alessandro Corsini
Proc. ASME. GT2021, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Wind Energy; Scholar Lecture, V001T10A007, June 7–11, 2021
Paper No: GT2021-59465
DOI: https://doi.org/10.1115/GT2021-59465
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Topics: Axial flow, Fans, Leakage, Optimization, Vortices, Design, Performance characterization, Databases, Experimental design, Geometry
Proceedings Papers

Numerical Investigation of an Induced Draft Air-Cooled Condenser Under Crosswind Conditions

Daniel L. Louw, C. J. Meyer, S. J. van der Spuy
Proc. ASME. HT2021, ASME 2021 Heat Transfer Summer Conference, V001T07A003, June 16–18, 2021
Paper No: HT2021-62355
DOI: https://doi.org/10.1115/HT2021-62355
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Topics: Condensers (steam plant), Heat transfer, Wind, Heat, Actuators, Axial flow, Disks, Fans, Heat exchangers, Porosity
Journal Articles

Design of a Tip Appendage for the Control of Tip Leakage Vortices in Axial Flow Fans

Thomas O. Meyer, Sybrand J. van der Spuy, Christiaan J. Meyer, Alessandro Corsini
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. July 2021, 143(7): 071008.
Paper No: TURBO-20-1335
DOI: https://doi.org/10.1115/1.4050359
Published Online: April 9, 2021
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Topics: Blades, Clearances (Engineering), Design, Pressure, Vortices, Flow (Dynamics), Trajectories (Physics), Performance characterization, Axial flow, Chords (Trusses)
Proceedings Papers

The Effect of Hub Configuration on the Performance of an Air-Cooled Steam Condenser Fan

Z. Meiring, S. J. van der Spuy, C. J. Meyer
Proc. ASME. GT2020, Volume 1: Aircraft Engine; Fans and Blowers, V001T10A012, September 21–25, 2020
Paper No: GT2020-15480
DOI: https://doi.org/10.1115/GT2020-15480
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Topics: Condensers (steam plant), Flow (Dynamics), Disks, Axial flow, Design, Pressure, Computational fluid dynamics, Fans, Manufacturing, Modeling
Proceedings Papers

Design of a Tip Appendage for the Control of Tip Leakage Vortices in Axial Flow Fans

Thomas O. Meyer, Sybrand J. van der Spuy, Christiaan J. Meyer, Alessandro Corsini
Proc. ASME. GT2020, Volume 1: Aircraft Engine; Fans and Blowers, V001T10A003, September 21–25, 2020
Paper No: GT2020-14292
DOI: https://doi.org/10.1115/GT2020-14292
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Topics: Axial flow, Design, Fans, Leakage, Vortices, Flow (Dynamics), Performance characterization, Blades, Passive control, Clearances (Engineering)
Journal Articles

Evaluation of Impulse Attenuation by Football Helmets in the Frequency Domain

Nicolas Leiva-Molano, Robert J. Rolley, Taylor Lee, Kevin G. McIver, Goutham Sankaran, Janette J. Meyer, Douglas E. Adams, Evan Breedlove, Thomas M. Talavage, Eric A. Nauman
Journal: Journal of Biomechanical Engineering
Article Type: Research-Article
J Biomech Eng. June 2020, 142(6): 061012.
Paper No: BIO-19-1297
DOI: https://doi.org/10.1115/1.4046363
Published Online: April 8, 2020
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Topics: Mechanical impedance, Impulse (Physics)
Journal Articles

Modeling Strategy for the Analysis of Forced Draft Air-Cooled Condensers Using Rotational Fan Models

Ruan A. Engelbrecht, Chris J. Meyer, Johan van der Spuy
Journal: Journal of Thermal Science and Engineering Applications
Article Type: Research-Article
J. Thermal Sci. Eng. Appl. October 2019, 11(5): 051011.
Paper No: TSEA-18-1486
DOI: https://doi.org/10.1115/1.4042590
Published Online: April 3, 2019
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Topics: Axial flow, Condensers (steam plant), Flow (Dynamics), Heat exchangers, Modeling, Computer simulation
Journal Articles

Detecting Changes in Fiber Orientation in a Simulated Chopped Fiber Plate Using Curvature Mode Shapes

Janette J. Meyer, Douglas E. Adams
Journal: Journal of Applied Mechanics
Article Type: Research-Article
J. Appl. Mech. May 2018, 85(5): 051009.
Paper No: JAM-17-1692
DOI: https://doi.org/10.1115/1.4039479
Published Online: March 19, 2018
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Topics: Fibers, Mode shapes
Proceedings Papers

Numerical Investigation of the Performance of a Forced Draft Air-Cooled Heat Exchanger

Ruan A. Engelbrecht, Johan Van der Spuy, Chris J. Meyer, Albert Zapke
Proc. ASME. GT2017, Volume 5A: Heat Transfer, V05AT20A002, June 26–30, 2017
Paper No: GT2017-63890
DOI: https://doi.org/10.1115/GT2017-63890
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Topics: Heat exchangers, Computational fluid dynamics, Heat, Actuators, Axial flow, Condensers (steam plant), Design, Disks, Modeling, Power stations
Proceedings Papers

A Sustainable Model for Problem Based Learning in a South African School

S. von Solms, W. S. Hurter, J. Meyer
Proc. ASME. IMECE2016, Volume 5: Education and Globalization, V005T06A030, November 11–17, 2016
Paper No: IMECE2016-68075
DOI: https://doi.org/10.1115/IMECE2016-68075
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Topics: Sustainability, Education, Students, Governments, Mathematics, Mentoring, Shells, Teams
Journal Articles

Shape Optimization of the Pick-Up Tube in a Pitot-Tube Jet Pump

J. Meyer, L. Daróczy, D. Thévenin
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. February 2017, 139(2): 021103.
Paper No: FE-16-1089
DOI: https://doi.org/10.1115/1.4034455
Published Online: November 3, 2016
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Topics: Design, Flowmeters, Pumps, Simulation, Flow (Dynamics), Computational fluid dynamics, Turbulence, Jet pumps
Journal Articles

Damage Localization in Composite Structures Using Nonlinear Vibration Response Properties

Sara S. Underwood, Janette J. Meyer, Douglas E. Adams
Journal: Journal of Vibration and Acoustics
Article Type: Research-Article
J. Vib. Acoust. June 2015, 137(3): 031015.
Paper No: VIB-13-1421
DOI: https://doi.org/10.1115/1.4029001
Published Online: June 1, 2015
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Topics: Damage, Frequency response, Composite materials, Stiffness
Journal Articles

Comparative Study of Energy Management Strategies for Hydraulic Hybrids

Timothy O. Deppen, Andrew G. Alleyne, Jonathan J. Meyer, Kim A. Stelson
Journal: Journal of Dynamic Systems, Measurement, and Control
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. April 2015, 137(4): 041002.
Paper No: DS-12-1426
DOI: https://doi.org/10.1115/1.4028525
Published Online: April 1, 2015
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Topics: Cities, Cycles, Design, Energy management, Engines, Errors, Highways, Simulation, Vehicles, Pressure
Proceedings Papers

Identification of Nonlinear Behavior in a Composite Structure With Core-Crushing Damage

Janette J. Meyer, Douglas E. Adams, Eric R. Dittman
Proc. ASME. IDETC-CIE2014, Volume 7: 2nd Biennial International Conference on Dynamics for Design; 26th International Conference on Design Theory and Methodology, V007T05A014, August 17–20, 2014
Paper No: DETC2014-34409
DOI: https://doi.org/10.1115/DETC2014-34409
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Topics: Composite materials, Damage, Stiffness, Damping, Aluminum, Degrees of freedom, Dynamic response, Excitation, Honeycomb structures, Resonance
Proceedings Papers

Embedded Sensitivity Functions for Improving the Effectiveness of Vibro-Acoustic Modulation and Damage Detection on Wind Turbine Blades

Janette J. Meyer, Douglas E. Adams, Janene Silvers
Proc. ASME. DSCC2014, Volume 3: Industrial Applications; Modeling for Oil and Gas, Control and Validation, Estimation, and Control of Automotive Systems; Multi-Agent and Networked Systems; Control System Design; Physical Human-Robot Interaction; Rehabilitation Robotics; Sensing and Actuation for Control; Biomedical Systems; Time Delay Systems and Stability; Unmanned Ground and Surface Robotics; Vehicle Motion Controls; Vibration Analysis and Isolation; Vibration and Control for Energy Harvesting; Wind Energy, V003T51A002, October 22–24, 2014
Paper No: DSCC2014-6229
DOI: https://doi.org/10.1115/DSCC2014-6229
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Topics: Acoustics, Blades, Damage, Wind turbines, Sensors, Structural health monitoring, Frequency response, Monitoring systems
Proceedings Papers

New Design Approach for Pitot-Tube Jet Pump

J. Meyer, L. Daróczy, D. Thévenin
Proc. ASME. GT2014, Volume 1A: Aircraft Engine; Fans and Blowers, V01AT10A004, June 16–20, 2014
Paper No: GT2014-25310
DOI: https://doi.org/10.1115/GT2014-25310
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Topics: Design, Flowmeters, Jet pumps, Computer software, Optimization, Cavities, Computational fluid dynamics, Displacement, Fluids, Geometry
Proceedings Papers

Sensitivity Analysis of Energy Management Strategies for Hydraulic Hybrid Vehicles

Timothy O. Deppen, Andrew G. Alleyne, Kim A. Stelson, Jonathan J. Meyer
Proc. ASME. DSCC2012-MOVIC2012, Volume 1: Adaptive Control; Advanced Vehicle Propulsion Systems; Aerospace Systems; Autonomous Systems; Battery Modeling; Biochemical Systems; Control Over Networks; Control Systems Design; Cooperative and Decentralized Control; Dynamic System Modeling; Dynamical Modeling and Diagnostics in Biomedical Systems; Dynamics and Control in Medicine and Biology; Estimation and Fault Detection; Estimation and Fault Detection for Vehicle Applications; Fluid Power Systems; Human Assistive Systems and Wearable Robots; Human-in-the-Loop Systems; Intelligent Transportation Systems; Learning Control, 129-136, October 17–19, 2012
Paper No: DSCC2012-MOVIC2012-8645
DOI: https://doi.org/10.1115/DSCC2012-MOVIC2012-8645
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Topics: Energy management, Hybrid electric vehicles, Sensitivity analysis, Cycles, Cities, Batteries, Control equipment, Design, Design methodology, Dynamic programming
Proceedings Papers

Evaluation of a Novel Statistical Method for EMG-to-Moment Estimation During Gait

Andrew J. Meyer, Carolynn Patten, Benjamin J. Fregly
Proc. ASME. SBC2012, ASME 2012 Summer Bioengineering Conference, Parts A and B, 511-512, June 20–23, 2012
Paper No: SBC2012-80926
DOI: https://doi.org/10.1115/SBC2012-80926
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Topics: Design, Electromyography, Geometry, Modeling, Muscle, Musculoskeletal system, Nervous system, Osteoarthritis, Tendons