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Dr. Ronan Grimes


Dr Ronan Grimes graduated with a B.Eng. (Hons) Mechanical Engineering from UL in 1997 and received his PhD in 2001, also from UL, for his research on air flow and heat transfer in fan cooled electronic systems. In 2003 he was awarded an IRCSET Government of Ireland Post Doctoral Research Fellowship. To date he has received funding of over ¿0.7M from the EU, Enterprise Ireland and IRCSET. His research interests are in the fields of electronics thermal management, micro fluidics and the development of rotating machinery such as micro fans and micro pumps. Under the EU-funded EMERGE programme, he collaborated with the Institut für Mikrotechnik Mainz (IMM) on micro fan fabrication and he is currently leading a Commercialisation Fund Technology Development project on the development of micro fans for electronics thermal management. He is the supervisor of three graduate students and mentors one post doctoral researcher. He is the author of 24 publications, the majority of which were peer reviewed.

Research Interests

Fluid mechanics, heat transfer, microfluidics, micro TAS, electronics cooling, microfans


Conference Publication


American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Cleary M., Hodes M., Grimes R., North M.T.
American Society Of Mechanical Engineers, Heat Transfer Division, (Publication) Htd


Micro Total Analysis Systems 2004, Vol 2
Davies, M; Dalton, T; Grimes, R


Advances in Bioengineering, BED
King C., Walsh E., Grimes R., Gonzalez A.


Grimes, R; Walsh, E; Kunz, S; Davies, M; Quin, D

Other Publication


Thermal management of low profile applications
Walsh, EJ; Walsh, P; Grimes, R; Egan, V

Peer Reviewed Journal


A Compact Modeling Approach to Enhance Collaborative Design of Thermal-Fluid Systems
Stafford, J,Newport, D,Grimes, R
Journal Of Electronic Packaging DOI: 10.1115/1.4026051


Reduced Power Precision Temperature Control Using Variable Conductance Heat Pipes
Cleary, M,North, MT,Van Lieshout, M,Brooks, DA,Grimes, R,Hodes, M
Ieee Transactions On Components Packaging And Manufacturing Technology DOI: 10.1109/TCPMT.2013.2270286


Development of compact thermal-fluid models at the electronic equipment level
Stafford, J; Grimes, R; Newport, D
Journal Of Thermal Science And Engineering Applications


Flat plate heat transfer with impinging axial fan flows
Stafford, J; Walsh, E; Egan, V; Grimes, R
International Journal Of Heat And Mass Transfer DOI: 10.1016/j.ijheatmasstransfer.2010.08.020


An Experimental Investigation of the Flow Fields Within Geometrically Similar Miniature-Scale Centrifugal Pumps
Kearney, D; Grimes, R; Punch, J
Journal Of Fluids Engineering-Transactions Of The Asme DOI: 10.1115/1.3176985


The effect of Reynolds number on microaxial flow fan performance
Quin, D; Grimes, R
Journal Of Fluids Engineering-Transactions Of The Asme DOI: 10.1115/1.2953300


Compatibility of segmenting fluids in continuous-flow microfluidic PCR
Walsh E.J., King C., Grimes R., Gonzalez A., Ciobanu D.
Journal Of Medical Devices, Transactions Of The Asme DOI: 10.1115/1.2812426


Film Thickness for Two Phase Flow in a Microchannel
Grimes, R; King, C; Walsh, E
Advances And Applications In Fluid Mechanics


PIV measurements of flow within plugs in a microchannel
King, C; Walsh, E; Grimes, R
Microfluidics And Nanofluidics DOI: 10.1007/s10404-006-0139-y


Interaction of quantitative PCR components with polymeric surfaces
Gonzalez, A; Grimes, R; Walsh, EJ; Dalton, T; Davies, M
Biomedical Microdevices DOI: 10.1007/s10544-006-9030-6


The Effect of Geometric Scaling on Aerodynamic Performance
Grimes, R; Walsh, EJ; Quin, D; Davies, M
Aiaa Journal


Segmenting fluid effect on PCR reactions in microfluidic platforms
Walsh, EJ; King, C; Grimes, R; Gonzalez, A
Biomedical Microdevices DOI: 10.1007/s10544-005-6068-9


Air flow and heat transfer in fan cooled electronic systems
Grimes, R; Davies, M
Journal Of Electronic Packaging DOI: 10.1115/1.1649241


Optical measurement of electronic system air flow and temperature distribution
Grimes, R; Davies, M
Journal Of Optics A-Pure And Applied Optics DOI: 10.1088/1464-4258/6/6/018


Modelling electronic cooling axial fan flows
Grimes, R; Davies, M; Punch, J; Dalton, T; Cole, R
American Soc Mechanical Engineers J. Electronic Packagi