School of Engineering & Physical Sciences, Date of Birth: 2 nd August, 1980 James Nasmyth Building,

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1 Tadhg S. O Donovan Personal Information School of Engineering & Physical Sciences, Date of Birth: 2 nd August, 1980 James Nasmyth Building, Heriot-Watt University, Nationality: Irish Edinburgh, EH14 4AS, United Kingdom Tel: +44 (0) Fax: +44 (0) T.S.O Donovan@hw.ac.uk Personal Statement My career ambition is to excel as a research active Lecturer in Engineering. My primary research interest is in the area of fluid mechanics, thermodynamics and heat transfer. Specifically my research concerns a fundamental investigation of fluid flow and its application to convective heat transfer. Enhancement of heat transfer can be achieved by furthering the understanding of fluid flow in micro-scale and at high temporal resolution. My research interest directly addresses the requirement for more efficient energy production and the thermal management bottleneck to the development of electronic devices with the following research strategy: - Measurement of micro-scale fluid flow & heat transfer at high temporal resolution - Development of fundamental research into real world thermal management hardware ICT & Electronics Cooling Miniaturisation, increased functionality, and increased power demand of electronic devices and systems have made thermal management one of the most severe bottlenecks to technology development in the ICT sector. Development of Renewable Energy Sources Thermal resistance between the surface and working fluid of flat bed solar collectors limits their efficiency to less than 50%. Potential for enhancement can be realised by fundamental investigation of two-phase flow and heat transfer. Research Interests Jet Impingement Heat Transfer, ICT & Electronics Cooling, Synthetic Air Jets, Two Phase Flow & Heat Transfer, Grinding Heat Transfer Professional Membership & Affiliations Centre for Telecommunications Value-Chain-Driven Research January present The CTVR is focused on applying a value-chain perspective to research aimed at realising the next generation of telecommunications networks. It brings together a multi-disciplinary group of researchers drawn from many Irish Universities together with a carefully chosen set of industrial partners to work on those engineering and scientific challenges that will make the most difference to the telecommunications networks in the future. Current research into the development of a Synthetic Miniature Jet Electronics Cooler contributes to the Innovative Thermal Management Technologies Group of the Photonics Strand. Engineers Ireland October present

2 Teaching Experience Lecturer Heriot-Watt University, Edinburgh, United Kingdom September present Responsibility for lectures, exams, assignments, and grades of undergraduate engineering courses including Thermodynamics and Fluid Mechanics Supervision of Final Year B.Eng. and M.Eng. Projects including: Design of a Thermo-acoustic Cooler, Testing of a Synthetic Air Jet Cooler, Blood Perfusion Study and Thermo-electric Cooler Testing. Mentor for first year undergraduate students Part-time Lecturer October Auguust 2007 Responsibility for lectures, exams, assignments, and grades of undergraduate engineering courses including Senior Freshman (2 nd Year) Thermo-Fluids, Junior Sophister (3 rd Year) Fluid Dynamics and Senior Sophister (4 th Year) Heat Transfer (1 Module) Supervision of Senior Sophister Projects including: Design of a Thermo-acoustic Cooler, Testing of a Synthetic Air Jet Cooler, Two-Phase Flow and Heat Transfer Measurement, Blood Perfusion Study and Thermo-electric Cooler Testing. Teaching Assistant October September 2005 Presenting in Tutorial Sessions, Conducting Lab Sessions and Fielding Student Inquiries for Junior Sophister Thermodynamics, Fluid Dynamics and Senior Sophister Heat Transfer Research Experience Postdoctoral Research Fellow October September 2007 Enhanced Gas Jet Cooling, Science Foundation Ireland, Basic Research Grant Programme Heat transfer to an impinging air jet is enhanced by artificially exciting the flow, acoustically and otherwise. Time resolved heat transfer measurements, using hot film techniques, and local and whole field flow measurements, using laser Doppler anemometry and particle image velocimetry, are obtained for a range of excitation techniques and flow conditions. Education Ph.D. Mechanical Engineering, 2005 Thesis Title: Fluid Flow and Heat Transfer to an Impinging Air Jet Supervisor: Professor Darina B. Murray B.A. B.A.I. Mechanical & Manufacturing Engineering, 2001 Dissertation Title: Blood Perfusion Study Supervisor: Professor Darina B. Murray

3 Research Grants Held Development of an improved surface heat flux measurement technique November 2007 Principal Investigator EPS, Start-up Funding, 10,000 To enhance the cooling performance of impinging synthetic air jets a better understanding of the temporal nature of the flow velocity and heat flux is required. This research will measure the heat transfer at various locations along the impingement surface and correlate this with measurements of the local flow velocity and temperature. Of particular interest are the thermal gradients in the jet flow due to vortices and the influence that energy separation has on the local and area averaged heat transfer. Synthetic air jets: A study of convective cooling in thermal management applications September August 2010 Collaborator (no provision made for salary) SFI, Research Frontiers Programme, 183,083 To enhance the cooling performance of impinging synthetic air jets a better understanding of the temporal nature of the flow velocity and heat flux is required. This research will measure the heat transfer at various locations along the impingement surface and correlate this with measurements of the local flow velocity and temperature. Of particular interest are the thermal gradients in the jet flow due to vortices and the influence that energy separation has on the local and area averaged heat transfer. Synthetic Miniature Jet Electronics Cooler October September 2007 Principal Investigator EI, Proof of Concept, 82,669 Thermal hardware is being developed that incorporates an array of miniature impinging synthetic jets to cool electronic packages. The new thermal package will be an economical, compact, efficient and reliable replacement for conventional rotary fan-based cooling units. This research contributes to the Photonics Strand (Innovative Thermal Management Technologies Group) of the CTVR. Publications Journal Publications Donnelly, B., O Donovan, T. S. and Murray, D. B., 2008, Bubble enhanced heat transfer from a vertical heated surface, Journal of Enhanced Heat Transfer, 15, pp O Donovan, T. S. and Murray, D. B., 2007, Jet impingement heat transfer - part 1: analysis of heat transfer and local velocity distributions, International Journal of Heat and Mass Transfer, 50, pp (Reached no. 13 in the Top 25 Hottest Articles for this Journal) O Donovan, T. S. and Murray, D. B., 2007, Jet impingement heat transfer - part 2: a temporal investigation of heat transfer and local fluid velocities, International Journal of Heat and Mass Transfer, 50, pp Persoons, T. and O Donovan, T. S., 2007, A pressure-based estimate of synthetic jet velocity, Physics of Fluids, 19 O Donovan, T. S., Murray, D. B. and Torrance, A. A., 2006, Jet heat transfer in the vicinity of a rotating grinding wheel, Journal of Mechanical Engineering Science, 220, pp (Highlighted as making a strong contribution to the Journal)

4 Publications (Journal) O Donovan, T. S. and Murray, D. B., Fluctuating fluid flow and heat transfer to an obliquely impinging air jet, International Journal of Heat and Mass Transfer (in press) Reymond, O., O Donovan, T. S. and Murray, D. B., Natural convection heat transfer from two horizontal cylinders, Experimental Thermal and Fluid Science (accepted for publication) Peer Reviewed Conference Publications Persoons, T., O Donovan, T. S. and Murray, D. B., Improving the measurement accuracy of PIV in a synthetic jet flow, Proceedings of the 13th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Eindhoven (accepted) O Donovan, T. S. and Murray, D. B., Heat transfer to an acoustical excited impinging air jet, Proceedings of the 5th European Thermal-Sciences Conference, Eindhoven (submitted) Kinsella, C., Donnelly, B., O Donovan, T. S. and Murray, D. B., Heat transfer enhancement from a horizontal surface by impinging swirl jets, Proceedings of the 5th European Thermal-Sciences Conference, Eindhoven (submitted) McGuinn, A., Persoons, T., Valiorgue, P., O Donovan, T. S. and Murray, D. B., Heat transfer measurements of an impinging synthetic air jet, Proceedings of the 5th European Thermal-Sciences Conference, Eindhoven (submitted) O Donovan, T. S. and Murray, D. B., 2007, Effect of acoustic excitation on the heat transfer to an impinging air jet, ASME-JSME Thermal Engineering Conference and Summer Heat Transfer Conference, Vancouver, HT McGuinn, T. A., O Donovan, T. S. and Murray, D. B., 2007, Heat transfer distributions from a heated flat surface subject to an impinging synthetic air jet, ASME-JSME Thermal Engineering Conference and Summer Heat Transfer Conference, Vancouver, HT Donnelly, B., O Donovan, T. S. and Murray, D. B., 2007, Enhancement of heat transfer from a submerged inclined surface due to sliding bubble motion, ASME-JSME Thermal Engineering Conference and Summer Heat Transfer Conference, Vancouver, HT McGuinn, T. A., Persoons, T., O Donovan, T. S. and Murray, D. B., 2007, Surface heat transfer to an impinging synthetic air jet, 10th UK National Heat Transfer Conference, Edinburgh Donnelly, B., O Donovan, T. S. and Murray, D. B., 2007, Surface heat transfer due to sliding bubble motion, 10th UK National Heat Transfer Conference, Edinburgh O Donovan, T. S. and Murray, D. B., 2006, Fluctuating fluid flow and heat transfer measurements of an impinging air jet, 13 th International Symposium of Applications of Laser Techniques to Fluid Mechanics, Lisbon, 28-4 O Donovan, T. S. and Murray, D. B., 2006, Effect of vortices on jet impingement heat transfer, 13 th International Heat Transfer Conference, Sydney, JET-20 O Donovan, T. S., Murray, D. B. and Torrance, A. A., 2005, Impinging jet heat transfer in the transitional wall jet region, Proceedings of ASME Summer Heat Transfer Conference, San Francisco, HT Glynn, C., O Donovan, T. S. and Murray, D. B., 2005, Jet impingement cooling, Proceedings of the 9 th UK National Heat Transfer Conference, Manchester, PS3-01

5 Publications (Conference) O Donovan, T. S., Murray, D. B. and Torrance, A. A., 2004, PIV measurements and convective heat transfer of an impinging air jet, 12 th International Symposium of Applications of Laser Techniques to Fluid Mechanics, Lisbon, 13-2 O Donovan, T. S., Murray, D. B. and Torrance, A. A., 2004, Heat transfer to an obliquely impinging air jet, Proceedings of the 8 th UK National Heat Transfer Conference, Oxford, TT 3 O Donovan, T. S. and Murray, D. B., 2003, Fluctuating heat transfer to an impinging air jet in the transitional wall jet region, Proceedings of Eurotherm Seminar 74, Eindhoven O Donovan, T. S., Atmane, M. A., and Murray, D. B., 2002, Induced heat transfer from human skin: Its relationship to blood perfusion in the tissue, Proceedings of the 7 th International Conference on Advanced Computational Methods in Heat Transfer, Halkidiki, pp Papers Submitted for Publication Persoons, T. and O Donovan, T. S., Improving the local accuracy of particle image velocimetry based on a weighted peak ratio, Measurement Science Technology (submitted) Donnelly, B., O Donovan, T. S. and Murray, D. B., Surface heat transfer due to sliding bubble motion, Applied Thermal Engineering (submitted) Research Skills Fluid Flow Measurement Techniques Excellent working knowledge of Particle Image Velocimetry (PIV) for full field velocity measurement. Have developed a high speed PIV system for both transient two phase flows and high speed measurement of an air flow. Experienced in Laser Doppler Anemometry (LDA) for high speed, non-intrusive velocity measurement. Familiar with data analysis of irregularly sampled LDA data and the appropriate correction techniques. Highly experienced in Hot Wire Anemometry for high spatial and temporal resolution velocity measurement. Contributed to the design, build and test of a X hot-wire calibrator. Heat Transfer Measurement Techniques Excellent working knowledge of Liquid Crystal Thermography calibration and experimentation in both air and water flows. Have employed Infrared Thermal Imaging to measure plane surface temperatures. Have developed code to calculate the convective heat transfer coefficient accounting for lateral conduction within the heater foil. Highly experienced in the use of flush mounted Hot Film Sensors for high speed convective heat flux measurement. Have incorporated these sensors in both impinging jet and two phase flows to measure the fluctuating component of the convective heat transfer coefficient. Computer Skills Extensive knowledge of MatLAB R, AutoCAD R and LabVIEW TM engineering software. Extensive experience with data acquisition hardware and software by National Instruments TM (LabVIEW TM ), Dantec Dynamics (StreamLine), LaVision (DaVis) and FLIR Systems (Researcher TM )

6 Additional Information Reviewer International Journal of Heat and Fluid Flow ASME International Heat Transfer Conferences International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics Eurotherm Conference Internal Examiner for Postgraduate Thesis Heriot-Watt University (Ph.D.) Trinity College Dublin (M.Sc.) Referees Professor Andrew J. Moore Professor Darina B. Murray Academic Head of Mechanical Engineering Director of Research for School of Engineering School of Engineering and Physical Science Heriot-Watt University, Edinburgh United Kingdom Mechanical & Manufacturing Engineering Trinity College Dublin Ireland Tel: Tel: Fax: Fax: A.Moore@hw.ac.uk dmurray@tcd.ie Professor John A. Fitzpatrick Head of School of Engineering Mechanical & Manufacturing Engineering Trinity College Dublin Ireland Professor Andrew A. Torrance Associate Professor Mechanical & Manufacturing Engineering Trinity College Dublin Ireland Tel: Tel: Fax: Fax: john.fitzpatrick@tcd.ie atorrnce@tcd.ie