Dr. Paul Walsh

Dept. of Aerospace Engineering, Ryerson University

Office Number: (416) 979-5000 ext. 7729, Department Number: (416) 979-5016, Email: paul.walsh@ryerson.ca

Academic Administrative Positions:

Chair

Department of Aerospace Engineering, Ryerson University

2011 - present

Duties as Chair:

- Provide academic and administrative leadership in regard to teaching, the development and administration of graduate and undergraduate programs and curricula, and the conduct of scholarly research

- Provide a fair, equitable, and supportive environment for learning

- Provide stewardship of financial and human resources in the department

- Consult with members of the department in its administration to create and maintain an open and collegial decision making process

- Represent the department and its interests within the University administration and to external organizations

- Maintain occupational health and safety standards consistent with University policy and prevailing laws

- Facilitate career development of department members including tenure and promotion of faculty

- Establish committees to ensure members of the department have input and some shared responsibility in the administration of programs and resources

Associate Chair

Department of Aerospace Engineering, Ryerson University

2008 - 2011

Duties as Associate Chair:

- Provide counselling and academic guidance to undergraduate students

- Administer the selection and hiring process for teaching assistants

- Administer the undergraduate course scheduling process

- Administer the health and safety training for teaching assistants

- Provide orientation for second year students entering the program

- Maintain an outreach program to local high schools to ensure that prospective students are aware of career options in Aerospace Engineering

- Work in consultation with the Chair on curriculum renewal

Education:

1998 - 1999

Post Doctoral Appointment, National Aeronautics and Space Administration (NASA), Ames Research Center, Mountain View, CA

Duties: Develop and test CFD software in support of NASA’s development of aerodynamic technologies

Supervisor: Dr. Thomas Pulliam

1998

Doctor of Philosophy, University of Toronto Institute for Aerospace Studies

Specialization: Computational Fluid Dynamics (CFD), Applied Aerodynamics, Numerical Algorithm Development

Thesis: "Unstructured Grid Methods in Transonic Airfoil Flows"

Course topics: Computational Fluid Dynamics, Finite Element Methods, Aerospace Propulsion, Fluids Dynamics

Supervisor: Dr. David Zingg

1992

Master of Applied Science, University of British Columbia

Specialization:Computational Fluid Dynamics (CFD), Automotive Applications of CFD, Turbomachinery

Thesis:"Numerical Analysis of High Pressure Injection of Natural Gas into Diesel Engine Combustion Chambers"

Course topics: Computational Methods, Aerospace Propulsion, Fluids Dynamics, Combustion

Supervisors: Dr. Philip Hill, Dr. Martha Salcudean

1989

Bachelor of Applied Science, University of British Columbia

Department of Mechanical Engineering

Rank: Class I

Professional

Accreditation:

Professional Engineering License, Professional Engineers Ontario

In good standing, 2002 - present

Academic Awards:

2000 - 2005

Natural Sciences and Engineering Research Council (NSERC), research operating and equipment grants

1998

National Research Council (United States) Post-Doctoral Fellowship

1997

Canadian Aeronautics and Space Institute student paper prize

1996

Second Prize, CFD Society of Canada Student Paper Competition

1993 - 1996

University of Toronto Open Fellowship

1994 - 1995

Ontario Graduate Scholarship

1992 - 1994

Natural Sciences and Engineering Research Council (NSERC) Post Graduate Scholarship B

1990 - 1991

Natural Sciences and Engineering Research Council Post Graduate Scholarship 2

1989

Natural Sciences and Engineering Research Council (NSERC) Undergraduate Summer Research Award

Research Initiatives:

2013 - present

Stall mitigation on high lift wings using partial spoiler deployment, This project is collaboration with engineers at a large aircraft manufacturer. The objective is to optimize the stall mitigation ability of high speed aircraft using partial spoiler deployment. The research used both numerical computational fluid dynamics (CFD) and experimental methods.

2012 - present

Variable geometry supersonic ducts, This project looks at the development of a variable geometry supersonic wind tunnel which allows various test speeds in the range of Mach 1 to 2.5. The research uses both analytical methods and numerical methods. The developed geometry and deployment sequence will be used to construct an experimental facility in the department.

2011 - present

Variable geometry morphing wings, The wings of an aircraft can operate more efficiently if their geometry can be reconfigured in flight. This project develops a wing composed of a series of segments which can alter their shape due to internal robotic trusses. External aerodynamics are critical to optimal performance. Both numerical and experimental wind tunnel investigation are used to refine the technology.

2008 - 2010

Ducted fan propulsion systems, Shrouded fans offer more efficient propulsion systems than unshrouded propellers. This project developed an optimized shroud geometry for a propulsion system on a small aircraft. Collaborators on the project included a small aircraft manufacturing company located in Toronto. The company subsequently used the research results to develop a shrouded propulsion system that will be sold commercially.

2005 - 2011

Wind turbine power generation in an urban environment, Power generation using wind turbines is an established technology. However, wind turbines that take advantage of directed winds in an urban setting can be used to enhance performance. This research looked at the development of turbine geometry and the configuration of surrounding structures to enhance wind turbine performance.

2003 - 2005

Blended wing-body flight controls, A recent development in efficient aircraft design is the blended wing-body configuration. Flight controls on the blended wing-body were studied numerically using CFD to investigate anomalous performance conditions. This project was collaboration with engineers at a large aircraft manufacturer.

2003 - 2006

High speed aircraft inlets, The inlets of a supersonic aircraft are typically designed with variable geometry to allow engines to avoid a stall occurrence. This research investigates the potential for a perforated fixed geometry inlet allowing controlled air bleed to avoid stall without the complexities of variable geometry. Work was done using CFD and analytical methods.

1999 - 2003

Unstructured, adaptive grids in CFD, This project is a continuation of previous work done at the University of Toronto. A CFD algorithm was developed which used adaptive, unstructured grids to improve resolution of flow features while minimizing increased computational cost.

1999 - 2002

Slat arm cavity analysis, An analysis was conducted of the internal wing cavity created when the slat arms are deployed during take-off and landing of a commercial aircraft. The focus was on the increased drag created and the potential for internal deposition of airborne contaminants. Recommendations were made commercial manufacturers on mitigation of such effects.

Courses Taught in Mechanical and Aerospace Engineering:

Course Subject:

Level:

Fluid Dynamics

2nd, 3rd year

Heat Transfer

3rd year

Aerodynamics

3rd year

Viscous Fluid Dynamics

4rd year

Space Systems Design (capstone course)

4rd year

Gas Dynamics

3rd year

Aircraft Design (capstone course)

4rd year

High Speed Aerodynamics

Graduate

Computational Fluid Dynamics

Graduate

Computational Methods in Aerodynamic Analysis

Graduate

Aircraft Safety and Reliability

Graduate

Aircraft Safety and Reliability

Graduate

Research Summary:

Specialties: Aerodynamics, Wind Energy, Computational Fluid Dynamics

Total funding obtained (including NSERC): $900,000

Total publications (journal and conference proceedings): 32

Publications:

Journal Publications:

J. Kamel, J. Xi, P. Walsh, "Module Discretization and Consolidation of a Modular Morphing Wing", accepted to Canadian Aeronautics and Space Jour., Jan. 2015.

A. D. Finistauri, F. XI, P. Walsh "Discretization Method for the Development of a Modular Morphing Wing", Jour. of Aircraft 2012 vol. 49:1, pp. 116-125.

J. V. Lassaline, P. C. Walsh, P. Vrchota, F. Caiazzo "Optimization of a Supersonic Nozzle", Int. Rev. of Aerospace Engineering, 2009, Vol. 2. n. 2, pp. 77-83.

S. Buhajczuk, P. Walsh, "Numerical study of bleed slot flow characteristics using magneto-aerodynamics", Int. Jour. of Computational Fluid Dynamics, Vol. 22, Iss. 1-2, Jan. 2008 pp. 11-18

P.C. Walsh, W.H. Leong, “Effectiveness of Several Turbulence Models in Natural Convection”, Int. Jour. of Numerical Methods for Heat and Fluid Flow, Vol. 14, No. 5 & 6, Aug. 2004, pp 633-648.

P.C. Walsh, R. Tahir, S. Molder, “Viscosity Correction for the Busemann Hypersonic Air Inlet”, Canadian Aeronautics and Space Jour., Vol. 49, No. 1, March 2003, pp. 11-17.

P. Walsh, D.W. Zingg, “Solution-Adaptation of Unstructured Grids for Aerodynamic Computations”, American Institute of Aeronautics and Astronautics ( AIAA) Jour., Vol. 39, No. 7, July 2001, pp.831-837.

P. Walsh, D.W. Zingg, “Aerodynamic Computations using Adaptive Unstructured Grids”, Canadian Aeronautics and Space Jour., Vol. 43, No. 4, 1998, pp. 244-249.

P. Walsh, D.W. Zingg, "A Solution Adaptive Solver for Aerodynamic Applications Using Unstructured Grids", CFD Soc. Canada Bulletin, No. 8, Winter 1998.

Conference Papers:

F. Mishriky, P. Walsh, Fengfeng Xi, "Reinforced Cellular Structure Morphing Skin", presented at the Canadian Aeronautics and Space Institute (CASI) Aerodynamics Symposium, May, 2015.

R. Perera, P. Paudel, J. Kamel, F. Xi, P. Walsh, "Module Discretization and Consolidation of a Modular Morphing Wing", presented at the Canadian Aeronautics and Space Institute (CASI) Aerodynamics Symposium, May, 2015.

S. Perera,E. Waller, A. Doxtator, A. Akhtar, P. Walsh, "CFD Modeling of the Wind Chamber used for Radioactive Particle Resuspension Experiment", Proceedings of the 25th CANCAM, London, Ontario, Canada, May 31 – June 4, 2015.

R. Perera, P. Paudel, F. Xi, P. Walsh, "Module Discretization of a Modular Morphing Wing with Three Flight Regimes", presented at the Canadian Aeronautics and Space Institute (CASI) Aerodynamics Symposium, May, 2013.

H. Pabla, P. Walsh, A. Tsoulis, "Stall Mitigation Characteristics using Wing Spoiler Occlusion", presented at the Canadian Aeronautics and Space Institute (CASI) Aerodynamics Symposium, May, 2013.

A. Finistauri, F. Xi, P. Walsh, K. Behdinan "Wing Line Discretization for the Development of a Modular Morphing Wing", 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, AIAA paper 2011-1884.

A. Jasudavisius, P. Walsh, "Optimization of a Ducted Fan Propulsion System for a Single Engine Aircraft", presented at the Canadian Aeronautics and Space Institute (CASI) Propulsion Symposium, May, 2009.

H. Hamm, P. Walsh, J. Lassaline, "Architectural Integration of Wind Turbines for Urban Power Generation", Ontario Society of Professional Engineers Conference, Engineering in a Climate of Change, Toronto, ON, Oct. 2008.

S. Buhajczuk, P. Walsh, "Numerical study of bleed slot flow characteristics using magneto-aerodynamics" presented to the CFD society of Canada Conference, Kingston, ON, April 2006.

H. Hamm, P. Walsh, "Integrated Power Generation in the Urban Environment", presented to the CFD society of Canada Conference, Kingston, ON, April 2006.

P.C. Walsh, S. Buhajczuk “Static Winglet Analysis for Improved Aircraft Stability”, presented at the Canadian Aeronautics and Space Institute (CASI) Aerodynamics Symposium, May, 2005.

P.C. Walsh, A. Jackson “Aerodynamic Performance Of The Inboard Elevon On A Blended-Wing-Body Aircraft”, presented at the Canadian Aeronautics and Space Institute (CASI) Aerodynamics Symposium, May, 2005.

P.C. Walsh, “Investigation of Two R-Adaptive Methods for Wall-Bounded Viscous Flow Problems on 2D Grids”, Proceedings of the Computational Fluid Dynamics Society of Canada Conference, Vancouver, British Columbia, May 28-30, 2003, pp. 321-327.

P.C. Walsh, R.B. Tahir, S. Molder, “Viscous Flow Considerations in the Design of the Busemann Hypersonic Air Inlet”, Proceedings of the Computational Fluid Dynamics ( CFD ) Society of Canada Annual Conference, June, 2002, pp. 169-173.

S. Perera, P.C. Walsh, A. Jackson, “Influence of Slat Arm Doors on Wing Performance”, Proceedings of the Computational Fluid Dynamics ( CFD ) Society of Canada Annual Conference, June, 2002, pp. 415-419.

W.H. Leong, P.C. Walsh, “A Comparison of Three Turbulence Models Applied to Natural Convection Flows in an Air-Filled Cubical Cavity”, Proceedings of the Computational Fluid Dynamics ( CFD ) Society of Canada Annual Conference, May, 2001, pp. 430-435.

S. Perera, P.C. Walsh, “The Influence of Slat Arm Doors on the Performance of the Boeing 717 Wing”, Proceedings of the Canadian Aeronautics and Space Institute ( CASI ) Aerodynamics Symposium, May 1, 2001, pp. 431-439.

P.C. Walsh, T. Pulliam, "The Effect of Turbulence Model Solution on Viscous Flow Problems", AIAA paper No. 2001-1018, presented at the 39th AIAA Aerospace Sciences Conference, Reno, NV, Jan. 2001.

P. Walsh, D.W. Zingg, “Aerodynamic Computations Using Adaptive Unstructured Grids”, Proceedings of the Canadian Aeronautics and Space Institute Conference, Toronto, Ontario, April 1997.

P. Walsh, D.W. Zingg, “On the Accuracy of Viscous Airfoil Computations Using Solution-Adaptive Unstructured Grids”, AIAA Paper 97-0329, presented at the AIAA Aerospace Sciences Conference, Reno, Nevada, January 1997.

P.Walsh, D.W. Zingg, "A Solution-Adaptive Solver for Aerodynamic Applications Using Unstructured Grids", Proceedings of the Computational Fluid Dynamics Society of Canada Conference, Ottawa, Ontario, June 1996, pp. 161-168.

P. Walsh, P. Ouellette, P.G. Hill, K. Hodgins, “Numerical Simulation and Experimental Visualization of High Pressure Injection of Natural Gas into Diesel Engine Combustion Chambers”, Presented at the Combustion Institute Conference, Ottawa, Ontario, June 1991.

P.G. Hill, R.J. Pierik, P. Walsh, Y. Tao, K. Hodgins, “An Assessment of the Performance of a Ricardo Hydra Engine Equipped with a Variable-Lift Inlet Valve with Natural Gas Fuelling”, University of British Columbia, AFL Report-90-01.