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Dr. Patrick Walsh

Research Interests

Active research fields include, fluid dynamics; aerodynamics; heat transfer; microfluidics; sustainable energy technologies; biofluidic technologies; and novel fan/heat sink technologies. These topics are pursued through both basic research and commercialization activities.

Professional Activities

Patent

  • 2011 US20110141693 A1 - Cooling Device
  • 2010 WO2010016046 - A Cooling Device
  • UNI054 - A Cooling Device

Employment

  • 2010 Cork Institute of Technology - Lecturer in Sustainable Energy
  • 2009 University of Limerick - Lecturer in Civil Engineering (Energy) - Member of Stokes Institute
  • 2007 University of Limerick - Senior Research Fellow
  • 2006 University of Limerick - Research Fellow
  • 2002 Stokes Research Institute, University of Limerick - Research Engineer, Postgraduate Student
  • 2002 IBM Microelectronics Division Ltd. - Engineer
  • 2001 IBM Microelectronics Division Ltd. - Engineer

Award

  • 2006 - PhD in Engineering 2006
  • 2004 - Sir Bernard Crossland Award 2004
  • 2002 - Best Co-Operative Education in College of Engineering 2002
  • 2002 - Advanced Scholars Award 2002

Education

  • 2006 University of Limerick - Ph.D.
  • 2002 University of Limerick - B Eng

Association

  • 2001 Ordinary Member, Engineers Ireland

Language

  • English
  • Irish

License

  • A Cooling Device
  • Cooling Device

Publications

Book Chapters

2011

Non-Boiling Two Phase Flows in Microchannels
Muzychka, YS; Walsh, EJ; Walsh, PA; Egan VM
(2011) Non-Boiling Two Phase Flows in Microchannels
In Handbook of Microfluidics and Nanofluidics; Florida, USA : CRC Press pp. 611-712

Peer Reviewed Journals

2013

Review and Extensions to Film Thickness Prediction in Taylor Flows
Howard, JA; Walsh, PA
(2013) Review and Extensions to Film Thickness Prediction in Taylor Flows
In International Journal Of Multiphase Flow; pp. xxx-xxx
DOI: 10.1016/j.ijmultiphaseflow.2013.04.005

2013

An Experimental Investigation of Heat Transfer Enhancement Mechanisms in Microencapsulated Phase-Change Material Slurry Flows
Howard, JA,Walsh, PA
(2013) An Experimental Investigation of Heat Transfer Enhancement Mechanisms in Microencapsulated Phase-Change Material Slurry Flows
In Heat Transfer Engineering; pp. 223-234
DOI: 10.1080/01457632.2013.703558

2011

Heat Transfer Enhancement Using Laminar Gas-Liquid Segmented Plug Flows
Muzychka, YS; Walsh, EJ; Walsh, P
(2011) Heat Transfer Enhancement Using Laminar Gas-Liquid Segmented Plug Flows
In Journal Of Heat Transfer-Transactions Of The Asme;
DOI: 10.1115/1.4002807

2011

Prandtl and capillary effects on heat transfer performance within laminar liquid-gas slug flows
Howard, JA; Walsh, PA; Walsh, EJ
(2011) Prandtl and capillary effects on heat transfer performance within laminar liquid-gas slug flows
In International Journal Of Heat And Mass Transfer; pp. 4752-4761
DOI: 10.1016/j.ijheatmasstransfer.2011.05.029

2010

Active Cooling of a Mobile Phone Handset
Grimes, R; Walsh, EJ; Walsh, PA
(2010) Active Cooling of a Mobile Phone Handset
In Applied Thermal Engineering; pp. 2363-2369
[ULIR]

2010

Simple Models for Laminar Thermally Developing Slug Flow in Noncircular Ducts and Channels
Muzychka, YS; Walsh, E; Walsh, P
(2010) Simple Models for Laminar Thermally Developing Slug Flow in Noncircular Ducts and Channels
In Journal Of Heat Transfer-Transactions Of The Asme;
DOI: 10.1115/1.4002095

2010

Novel micro-PIV study enables a greater understanding of nanoparticle suspension flows: nanofluids
Walsh, PA; Egan, VM; Walsh, EJ
(2010) Novel micro-PIV study enables a greater understanding of nanoparticle suspension flows: nanofluids
In Microfluidics And Nanofluidics; pp. 837-842
DOI: 10.1007/s10404-009-0553-z

2010

A Novel Approach to Low Profile Heat Sink Design
Stafford, J; Walsh, E; Egan, V; Walsh, P; Muzychka, YS
(2010) A Novel Approach to Low Profile Heat Sink Design
In Journal Of Heat Transfer-Transactions Of The Asme;
DOI: 10.1115/1.4001626

2010

Viscous Scaling Phenomena in Miniature Centrifugal Flow Cooling Fans: Theory, Experiments and Correlation
Walsh, PA; Walsh, EJ; Grimes, R
(2010) Viscous Scaling Phenomena in Miniature Centrifugal Flow Cooling Fans: Theory, Experiments and Correlation
In Journal Of Electronic Packaging;
DOI: 10.1115/1.4001590

2010

Active cooling of a mobile phone handset
Grimes, R; Walsh, E; Walsh, P
(2010) Active cooling of a mobile phone handset
In Applied Thermal Engineering; pp. 2363-2369
DOI: 10.1016/j.applthermaleng.2010.06.002

2010

Heat transfer model for gas-liquid slug flows under constant flux
Walsh, PA; Walsh, EJ; Muzychka, YS
(2010) Heat transfer model for gas-liquid slug flows under constant flux
In International Journal Of Heat And Mass Transfer; pp. 3193-3201
DOI: 10.1016/j.ijheatmasstransfer.2010.03.007

2009

Acoustic Emissions From Active Cooling Solutions for Portable Devices
Walsh, E; Walsh, P; Punch, J; Grimes, R
(2009) Acoustic Emissions From Active Cooling Solutions for Portable Devices
In Ieee Transactions On Components And Packaging Technologies; pp. 776-783
DOI: 10.1109/TCAPT.2009.2027605

2009

Correlating viscous scaling effects in miniature centrifugal flow fans
Walsh, PA; Walsh, EJ; Grimes, R
(2009) Correlating viscous scaling effects in miniature centrifugal flow fans
In American Soc Mechanical Engineers J. Electronic Packagi; pp. xxx-xxx

2009

Thermal Analysis of Miniature Low Profile Heat Sinks With and Without Fins
Egan, V; Walsh, PA; Walsh, E; Grimes, R
(2009) Thermal Analysis of Miniature Low Profile Heat Sinks With and Without Fins
In Journal Of Electronic Packaging;
DOI: 10.1115/1.3144150

2009

On viscosity measurements of nanofluids in micro and mini tube flow
Egan, VM; Walsh, PA; Walsh, EJ
(2009) On viscosity measurements of nanofluids in micro and mini tube flow
In Journal Of Physics D-Applied Physics;
DOI: 10.1088/0022-3727/42/16/165502

2009

An Experimental Study on the Design of Miniature Heat Sinks for Forced Convection Air Cooling
Egan, V; Stafford, J; Walsh, P; Walsh, E
(2009) An Experimental Study on the Design of Miniature Heat Sinks for Forced Convection Air Cooling
In Journal Of Heat Transfer-Transactions Of The Asme;
DOI: 10.1115/1.3110005

2009

Pressure drop in two phase slug/bubble flows in mini scale capillaries
Walsh, E; Muzychka, Y; Walsh, P; Egan, V; Punch, J
(2009) Pressure drop in two phase slug/bubble flows in mini scale capillaries
In International Journal Of Multiphase Flow; pp. 879-884
DOI: 10.1016/j.ijmultiphaseflow.2009.06.007

2009

Profile scaling of miniature centrifugal fans
Walsh, P; Egan, V; Grimes, R; Walsh, E
(2009) Profile scaling of miniature centrifugal fans
In Heat Transfer Engineering; pp. 130-137
DOI: 10.1080/01457630802293555

2008

Thermal Management of Low Profile Electronic Equipment Using Radial Fans and Heat Sinks
Walsh, E; Walsh, P; Grimes, R; Egan, V
(2008) Thermal Management of Low Profile Electronic Equipment Using Radial Fans and Heat Sinks
In Journal Of Heat Transfer-Transactions Of The Asme;
DOI: 10.1115/1.2977602

2007

On the out-of-plane divergence of streamtubes in planar mini-scale flow focusing devices
Walsh, PA; Walsh, EJ; Davies, MRD
(2007) On the out-of-plane divergence of streamtubes in planar mini-scale flow focusing devices
In International Journal Of Heat And Fluid Flow; pp. 44-53
DOI: 10.1016/j.ijheatfluidflow.2006.05.006

2006

Factors affecting temperature measurement using phase measurement interferometry in small scale devices
Walsh, PA; Davies, MRD
(2006) Factors affecting temperature measurement using phase measurement interferometry in small scale devices
In Experimental Thermal And Fluid Science; pp. 853-862
DOI: 10.1016/j.expthermflusci.2006.03.015

Other Journals

2006

Visualising the onset of meandering structures in a small length scale fluidic junction using dye injections
Walsh, PA; Davies, MRD; Dalton, T
(2006) Visualising the onset of meandering structures in a small length scale fluidic junction using dye injections
In Journal of Visualization; Springer pp. 3-
DOI: 10.1007/BF03181557

2005

Visualization of Buoyancy Opposing Flow Structures in a Small Length Scale Fluidic Junction
Walsh, PA; Davies, MRD; Dalton, T
(2005) Visualization of Buoyancy Opposing Flow Structures in a Small Length Scale Fluidic Junction
In Journal of Visualization; Springer pp. 288-
DOI: 10.1007/BF03181542

Conference Publications

2011

ASME IMECE2011; ASME International Mechanical Engineering Congress & Exposition
Walsh, E; Grimes, R; Walsh, P; Stafford, J
(2011) ASME IMECE2011; ASME International Mechanical Engineering Congress & Exposition
Denver, Colorado

2011

ASME ICNMM2011: 9th Annual ASME International Conference on Nanochannels, Microchannels & Minichannels
Howard, JA; Walsh, PA
(2011) ASME ICNMM2011: 9th Annual ASME International Conference on Nanochannels, Microchannels & Minichannels
pp. ICNMM2011-58075- Alberta, Edmonton, Canada

2010

Proceedings of the ASME InterPack Conference 2009, IPACK2009
Muzychka Y.S., Walsh E.J., Walsh P.
(2010) Proceedings of the ASME InterPack Conference 2009, IPACK2009
pp. 261-272

2010

2010 12th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2010
Janes N., Muzychka Y.S., Guy B., Walsh E.J., Walsh P.
(2010) 2010 12th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2010

DOI: 10.1109/ITHERM.2010.5501409

2010

ASME International Mechanical Engineering Congress and Exposition, Proceedings
Muzychka Y.S., Walsh E., Walsh P.
(2010) ASME International Mechanical Engineering Congress and Exposition, Proceedings
pp. 1867-1878
DOI: 10.1115/IMECE2009-10484

2010

2010 12th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2010
Howard J.A., Walsh P.A., Walsh E.J., Muzychka Y.S.
(2010) 2010 12th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2010

DOI: 10.1109/ITHERM.2010.5501320

2009

HT2009: PROCEEDINGS OF THE ASME SUMMER HEAT TRANSFER CONFERENCE 2009, VOL 1
Egan, VM; Walsh, PA; Walsh, EJ
(2009) HT2009: PROCEEDINGS OF THE ASME SUMMER HEAT TRANSFER CONFERENCE 2009, VOL 1
pp. 521-530

2009

Proceedings of the ASME Summer Heat Transfer Conference 2009, HT2009
Stafford J., Walsh E., Egan V., Walsh P., Muzychka Y.S.
(2009) Proceedings of the ASME Summer Heat Transfer Conference 2009, HT2009
pp. 801-812

2009

PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER CONFERENCE - 2008, VOL 2
Hanly, K; Grimes, R; Walsh, P
(2009) PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER CONFERENCE - 2008, VOL 2
pp. 183-191

2009

Proceedings of the ASME Summer Heat Transfer Conference 2009, HT2009
Walsh P.A., Walsh E.J., Muzychka Y.S.
(2009) Proceedings of the ASME Summer Heat Transfer Conference 2009, HT2009
pp. 389-397

2008

2008 11TH IEEE INTERSOCIETY CONFERENCE ON THERMAL AND THERMOMECHANICAL PHENOMENA IN ELECTRONIC SYSTEMS, VOLS 1-3
Walsh, E; Grimes, R; Walsh, P
(2008) 2008 11TH IEEE INTERSOCIETY CONFERENCE ON THERMAL AND THERMOMECHANICAL PHENOMENA IN ELECTRONIC SYSTEMS, VOLS 1-3
pp. 44-48

2008

PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON NANOCHANNELS, MICROCHANNELS, AND MINICHANNELS, PTS A AND B
Walsh, PA; Walsh, E; Grimes, R
(2008) PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON NANOCHANNELS, MICROCHANNELS, AND MINICHANNELS, PTS A AND B
pp. 1389-1397

2008

2008 11TH IEEE INTERSOCIETY CONFERENCE ON THERMAL AND THERMOMECHANICAL PHENOMENA IN ELECTRONIC SYSTEMS, VOLS 1-3
Egan, V; Stafford, J; Walsh, P; Walsh, E; Grimes, R
(2008) 2008 11TH IEEE INTERSOCIETY CONFERENCE ON THERMAL AND THERMOMECHANICAL PHENOMENA IN ELECTRONIC SYSTEMS, VOLS 1-3
pp. 497-509

2008

2008 11TH IEEE INTERSOCIETY CONFERENCE ON THERMAL AND THERMOMECHANICAL PHENOMENA IN ELECTRONIC SYSTEMS, VOLS 1-3
Walsh, EJ; Walsh, PA; Grimes, R; Punch, J
(2008) 2008 11TH IEEE INTERSOCIETY CONFERENCE ON THERMAL AND THERMOMECHANICAL PHENOMENA IN ELECTRONIC SYSTEMS, VOLS 1-3
pp. 464-470

2007

ICNMM2007: PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON NANOCHANNELS, MICROCHANNELS, AND MINICHANNELS
Egan, V; Walsh, P; Walsh, E; Grimes, R
(2007) ICNMM2007: PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON NANOCHANNELS, MICROCHANNELS, AND MINICHANNELS
pp. 209-218

2007

Sixth International Conference on Enhanced, Compact and Ultra-Compact Heat Exchangers: Science, Engineering and Technology
Walsh, EJ; Walsh, P; Bigerel, C; Grimes, R; Egan, V
(2007) Sixth International Conference on Enhanced, Compact and Ultra-Compact Heat Exchangers: Science, Engineering and Technology
(Ed.) Potsdam, Germany

2007

Sixth International Conference on Enhanced, Compact and Ultra-Compact Heat Exchangers: Science, Engineering and Technology
Grimes, R; Walsh, EJ; Walsh, P; Egan, V
(2007) Sixth International Conference on Enhanced, Compact and Ultra-Compact Heat Exchangers: Science, Engineering and Technology
(Ed.) Potsdam, Germany

2007

ICNMM2007: PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON NANOCHANNELS, MICROCHANNELS, AND MINICHANNELS
Walsh, E; Walsh, P; Grimes, R; Egan, V
(2007) ICNMM2007: PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON NANOCHANNELS, MICROCHANNELS, AND MINICHANNELS
pp. 245-251

2007

ASME-JSME Thermal Engineering and Summer Heat Transfer Conference
Walsh, EJ; Walsh, P; Grimes, R; Punch, J; Egan, V
(2007) ASME-JSME Thermal Engineering and Summer Heat Transfer Conference
(Ed.) Vancouver, Canada

2007

ICNMM2007: PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON NANOCHANNELS, MICROCHANNELS, AND MINICHANNELS
Walsh, PA; Egan, V; Grimes, R; Walsh, E
(2007) ICNMM2007: PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON NANOCHANNELS, MICROCHANNELS, AND MINICHANNELS
pp. 237-243

2007

5th International Conference on Nanochannels, Microchannels and Minichannels, ICNMM2007
Grimes, R; Walsh, EJ; Walsh, P; Egan, V
(2007) 5th International Conference on Nanochannels, Microchannels and Minichannels, ICNMM2007
(Ed.) uebla, Mexico

2005

HT2005: Proceedings of the ASME Summer Heat Transfer Conference 2005, Vol 1
Walsh, PA; Davies, MRD; Dalton, T
(2005) HT2005: Proceedings of the ASME Summer Heat Transfer Conference 2005, Vol 1
pp. 565-575

2005

ECI Heat Transfer and Fluid Flow in Microscale Conference
Walsh, PA; Walsh, EJ; Davies, MRD
(2005) ECI Heat Transfer and Fluid Flow in Microscale Conference
Castlevecchio Pascoli, Italy

2005

ECI Heat Transfer and Fluid Flow in Microscale Conference
Walsh, PA; Davies, MRD
(2005) ECI Heat Transfer and Fluid Flow in Microscale Conference
Castlevecchio Pascoli, Italy

2004

6th Annual Sir Bernard Crossland Symposium
Walsh, PA; Davies, MRD
(2004) 6th Annual Sir Bernard Crossland Symposium
Galway, Ireland

2004

6th Annual Sir Bernard Crossland Symposium
Walsh, P; Davies, MRD
(2004) 6th Annual Sir Bernard Crossland Symposium

2003

MICRO-ELECTRO-MECHANICAL SYSTEMS (MEMS) - 2003
Walsh, EJ; Walsh, PA; Grimes, R; Davies, MRD
(2003) MICRO-ELECTRO-MECHANICAL SYSTEMS (MEMS) - 2003
pp. 33-36

Published Reports

2011

Strategic Research Roadmap
Menzel, K; Walsh, P; Duffy, A; Duffy, M; Hryshchenko, M; Hurley, G; Keane, M; O'Mathuna, C; O'Sullivan, B; Provan, G.
(2011) Strategic Research Roadmap
Cork, Ireland : International Energy Research Centre

2011

Current State-of-the-Art & Gap Analysis
Menzel, K; Walsh, P; Duffy, A; Duffy, M; Hryshchenko, M; Hurley, G; Keane, M; O'Mathuna, C; O'Sullivan, B; Provan, G.
(2011) Current State-of-the-Art & Gap Analysis
Cork, Ireland : International Energy Research Centre

2006

Optical Field Measurements in Microscale Flow Focusing
Walsh, P
(2006) Optical Field Measurements in Microscale Flow Focusing
Castletroy, Limerick, Ireland : University of Limerick

Other Items Published

2011

Cooling Device
Walsh, EJ; Walsh, PA; Grimes, R; Punch, J;
(2011) Cooling Device
In International Patent Offices;

2010

A Cooling Device
Walsh, EJ; Walsh, PA; Grimes, R; Punch, J
(2010) A Cooling Device
In International Patent Offices; Ireland, US, China, World :

2004

Entropy Generation in Microscopic Fluid Flows - Year Two
Walsh, PA; Davies, MRD
(2004) Entropy Generation in Microscopic Fluid Flows - Year Two
(Ed.) Croke Park Conference Centre, Dublin, Ireland : in Proc. of 2004 Irish Research Council for Science, Engineering & Tec Croke Park Conference Centre, Dublin, Ireland

Invited Lecturess

2009

Phase Change Material Storage Heater Concept
Walsh, P
(2009) Phase Change Material Storage Heater Concept
(Ed.) Drogheda, Co. Louth, Ireland : Drogheda, Co. Louth, Ireland

2008

Overview of Stokes Micro-Cooler Technologies
Walsh, P
(2008) Overview of Stokes Micro-Cooler Technologies
(Ed.) Limerick, Ireland : Limerick, Ireland

2007

Competitive Advantages and Proposed Applications for Stokes Micro-Cooler Technology
Walsh, P
(2007) Competitive Advantages and Proposed Applications for Stokes Micro-Cooler Technology
(Ed.) University of Limerick, Limerick, Ireland : University of Limerick, Limerick, Ireland

Conference Presentations

2005

Entropy Generation in Microscopic Fluid Flows - Year Three
Walsh, PA; Davies, MRD
(2005) Entropy Generation in Microscopic Fluid Flows - Year Three
(Ed.) Croke Park Conference Centre, Dublin, Ireland : in Proc. of 2005 Irish Research Council for Science, Engineering & Tec Croke Park Conference Centre, Dublin, Ireland

2003

Entropy Generation in Microscopic Fluid Flows - Year One
Walsh, PA; Davies, MRD
(2003) Entropy Generation in Microscopic Fluid Flows - Year One
(Ed.) Kilmainham, Dublin, Ireland : in Proc. of 2003 Irish Research Council for Science, Engineering & Tec Kilmainham, Dublin, Ireland