Two Phase Flows
This research focuses on different aspects of gas liquid flows including experimental testing and modeling of the turbulent structure of bubbly flows, investigation of two phase flow transitions in large diameter pipes and investigations of air-oil flows.
Select Publications
Books
- Concurrent Bubbly Flow in Large Diameter Vertical Pipe: Experimental and Analytical Study by M. Shawkat and C.Y. Ching
Thesis Dissertations
Peer Reviewed Papers
- "The Liquid Turbulence Kinetic Energy Budget of Bubbly Flow in a Large Diameter Vertical Pipe", M. Shawkat and C.Y. Ching.
- "Bubble and Liquid Turbulence Characteristics of Bubbly Flow in a Large Diameter Vertical Pipe", M. Shawkat, C.Y. Ching, and M. Shoukri.
- "Development of Two-Phase Flow across Horizontal Sudden Expansions", W. Ahmed, C.Y. Ching, and M. Shoukri.
Boiling in Porous Media
This research is an experimental investigation into the boiling phenomenon over porous surfaces.
Select Publications
Peer Reviewed Papers
- “The Effect of Pore Size on the Heat Transfer between a Heated Finned Surface and a Saturated Porous Plate”, M. Schertzer, D. Ewing, C.Y. Ching, and J.S. Chang.
- "Effect of Gap Distance on Confined Boiling Heat Transfer Over a Saturated Porous Structure”, M. Schertzer, M. Khammar, D. Ewing, C.Y. Ching, and J.S. Chang.
- “Heat transfer from a surface into a confined gap over a saturated porous plate”, M. Khammar, D. Ewing, C.Y. Ching, J.S. Chang
Cavitation Detection
This project focused on the use of new experimental techniques to detect transient and steady state cavitation downstream of valves. This project was sponsored by Gosco Valves.
Select Publications
Thesis Dissertations
Building Energy Modeling
This project focuses on the improvement of building energy modeling tools for sustainable building development. The models are applied to McMaster's new Hatch building.
Select Publications
Thesis Dissertations
Peer Reviewed Papers
All published in ASHRAE Transactions
- “A Solar PV-Thermal Energy Design Optimization Study of a Building Footprint Limited Net-Zero Energy Facility”, R. Cuthbert, F. Pan, K. Nieminen, K. Friedrich, D. Wilkinson, J.S. Cotton
- "Targeting a Net-Zero Energy Student Center: Part 1-Thermal and Electrical Load Minimization." , T. Caldwell, R. Verschuere, K. Arfaei, J. S. Cotton, K. Friedrich, J. Anderson, M.Boroumand, B. Gregus, A. Murenbeeld, and D. Wilkinson.
- "Targeting a Net-Zero Energy Student Center: Part 2--Systems to Meet Building Loads." T. Caldwell, R. Verschuere, K. Arfaei, J. S. Cotton, K. Friedrich, J. Anderson, M.Boroumand, B. Gregus, A. Murenbeeld, and D. Wilkinson.
Natural Convection in Cavities
This research investigates the natural convection phenomenon in square cavities and square cavities with partitions.
Select Publications
Peer Reviewed Papers
- “The Effect of the Top Wall Temperature on the Laminar Natural Convection in Rectangular cavities with Different Aspect Ratios”, W. Wu and C.Y. Ching.
- “Investigation of a Large Top Wall Temperature on the Natural Convection Plume along Heated Vertical Wall in a Square Cavity” W. Wu, D. Ewing, and C.Y. Ching.
- "The Effect of Partitions on the Laminar Natural Convection in a Square Cavity”, W. Wu, C.Y. Ching
Heat Pipes
This research focuses on the performance of wicked heat pipes and rotating heat pipes.
Select Publications
Thesis Dissertations
Peer Reviewed Papers
- "Experimental investigation on the heat transfer characteristics of axial rotating heat pipes", F. Song, D. Ewing, and C.Y. Ching.
- "Heat transfer in the evaporator section of moderate-speed rotating heat pipes", F. Song, D. Ewing, and C.Y. Ching
- "Fluid flow and heat transfer model for high-speed rotating heat pipes", F. Song, D. Ewing, and C.Y. Ching
- "On the Design of an Aero-Engine Nose Cone Anti-Icing System Using a Rotating Heat Pipe", S. Gilchrist, D. Ewing, C.Y. Ching
- “Experimental Investigation of High-Speed Rotating Heat Pipes”, F. Song, D. Home, A.J. Robinson, D. Ewing, and C.Y. Ching
- “The transient response of wicked heat pipes with non-condensable gas”, S Saad, C.Y. Ching, D. Ewing
- "Effect of number of mesh layers and fluid loading on the performance of screen mesh wicked heat pipes", R. Kempers, D. Ewing, C.Y. Ching
- "Characterization of evaporator and condenser thermal resistances of a screen mesh wicked heat pipe", R. Kempers, A.J. Robinson, D. Ewing, C.Y. Ching
Flow & Heat Transfer in Jet Flows
This research focuses on the experimental investigations of the shear stress and heat transfer in wall and offset attaching jets.
Select Publications
Peer Reviewed Papers
- "Heat Transfer in Turbulent Planar Offset Attaching Jets with Small Initial Offset Distances", N. Gao, D. Ewing, and C.Y. Ching.
- "Flow and Heat Transfer in a Planar Offset Attaching Jet with a Co-Flowing Jet", N. Gao, D. Ewing, C.Y. Ching and J.W. Naughton.