Patrick Geoghegan

Accepting PhD Students

PhD projects

Fully Funded PhD Studentship Opportunity - Arterial fluid mechanics and their influence on cardiovascular disease. #2020/21-061
Full Details available https://www2.aston.ac.uk/eas/documents/advertepsdtpdec2020a.pdf (Deadline 3rd January 2021)

Aim – To develop a model which can demonstrate the influence of arterial geometry as a predictor for CVD in comparison with a healthy aging person and can be used in the experimental testing of implantable medical devices.

Project Summary - Cardiovascular Disease (CVD) accounts for 31% of all global deaths. Currently, CVD is reactively treated; someone becomes seriously ill before medical intervention. If CVD risk could be identified from the geometry of an artery and its effect on biofluid mechanics and the generated forces, then we could save countless lives.
The proposed research will use PIV, to produce complete time dependent 3D flow fields within arterial models. This will be acquired during the cardiac cycle within compliant, physiologically realistic, arterial geometries, constructed using investment casting and 3D printing. The ideal candidate could compliment this analysis and the development of an experimental benchmark with CFD simulations to perform a parametric analysis of geometrical effects on the flow field.
There is also an opportunity that the development of this experimental setup will serve as a perfect testbed for manufacturers of surgical devices; elucidating the affect their interventions have on the fluid dynamics post-surgery, thus leading onto industrial partnerships and applications.

Knowledge and skills required in applicant - The successful applicant should have a first class or upper second class honours degree in biomedical engineering, mechanical engineering, aeronautical engineering, materials science or a related subject. Preferred skill requirements include knowledge/experience of fluid mechanics / experimental analysis / additive manufacturing / CAD / basic programming e.g. MATLAB.

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22 Article
5 Conference publication
2 Letter, comment or opinion
1 Unpublished Conference Paper
More
- 1 Editorial

31 results

2022
An aqueous humour fluid dynamic study for normal and glaucomatous eye conditions
Basson, N., Alimahomed, F., Geoghegan, P. H., Williams, S. E. & Ho, W. H., 11 Jul 2022, 44th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2022. IEEE, p. 3963-3966 (Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)).
Research output: Chapter in Book/Published conference output › Conference publication
Effect of Pulsatility on the Transport of Thrombin in an Idealized Cerebral Aneurysm Geometry
Hume, S., Tshimanga, J-M. I., Geoghegan, P., Malan, A. G., Ho, W. H. & Ngoepe, M. N., 11 Jan 2022, In: Symmetry. 14, 1, 133.
Research output: Contribution to journal › Article › peer-review

Open Access
File
Review of the Development of Hemodynamic Modeling Techniques to Capture Flow Behavior in Arteries Affected by Aneurysm, Atherosclerosis, and Stenting
Williamson, P. N., Docherty, P. D., G. Yazdi, S., Khanafer, A., Kabaliuk, N., Jermy, M. & Geoghegan, P. H., 1 Apr 2022, In: Journal of Biomechanical Engineering. 144, 4
Research output: Contribution to journal › Article › peer-review
2021
In-vitro particle image velocimetry assessment of the endovascular haemodynamic features distal of stent-grafts that are associated with development of limb occlusion
G. Yazdi, S., Docherty, P. D., Khanafer, A., Jermy, M., Kabaliuk, N., Geoghegan, P. H. & Williamson, P., 2021, In: Journal of the Royal Society of New Zealand. 51, 2, p. 361-374 14 p.
Research output: Contribution to journal › Article › peer-review

Open Access
File
In vitro pulsatile flow study in compliant and rigid ascending aorta phantoms by stereo particle image velocimetry
Yazdi, S. G., Docherty, P. D., Williamson, P. N., Jermy, M., Kabaluik, N., Khanafer, A. & Geoghegan, P. H., Oct 2021, In: Medical Engineering and Physics. 96, p. 81-90 10 p.
Research output: Contribution to journal › Article › peer-review

Open Access
File
Numerical study of flow structure and pedestrian-level wind comfort inside urban street canyons
Pancholy, P. P., Clemens, K., Geoghegan, P., Jermy, M., Moyers-Gonzalez, M. & Wilson, P. L., 2021, In: Journal of the Royal Society of New Zealand. 51, 2, p. 307-332 26 p.
Research output: Contribution to journal › Article › peer-review

Open Access
File
Reply to Response to Vacuous standards – subversion of the OSAC standards-development process
Morrison, G. S., Neumann, C., Geoghegan, P. H., Edmond, G., Grant, T., Ostrum, R. B., Roberts, P., Saks, M., Syndercombe Court, D., Thompson, W. C. & Zabell, S., 2021, In: Forensic Science International: Synergy. 3, 100149.
Research output: Contribution to journal › Letter, comment or opinion › peer-review

Open Access
2020
Evaluation of a Desktop 3D Printed Rigid Refractive-Indexed-Matched Flow Phantom for PIV Measurements on Cerebral Aneurysms
Ho, W. H., Tshimanga, I. J., Ngoepe, M. N., Jermy, M. C. & Geoghegan, P. H., 1 Feb 2020, In: Cardiovascular Engineering and Technology. 11, 1, p. 14-23 10 p.
Research output: Contribution to journal › Article › peer-review

Open Access
File
Vacuous standards – Subversion of the OSAC standards-development process
Morrison, G. S., Neumann, C. & Geoghegan, P. H., 30 Jun 2020, In: Forensic Science International: Synergy. 2, p. 206-209 4 p.
Research output: Contribution to journal › Editorial › peer-review

Open Access
File
2019
A Novel Fabrication Method for Compliant Silicone Phantoms of Arterial Geometry for Use in Particle Image Velocimetry of Haemodynamics
Yazdi, S. G., Huetter, L., Docherty, P. D., Williamson, P. N., Clucas, D., Jermy, M. & Geoghegan, P. H., 11 Sep 2019, In: Applied Sciences. 9, 18, 3811.
Research output: Contribution to journal › Article › peer-review

Open Access
File
PIV Analysis of Stented Haemodynamics in the Descending Aorta
Williamson, P., Docherty, P. D., Yazdi, S. G., Jermy, M., Khanafer, A., Kabaliuk, N. & Geoghegan, P., 7 Oct 2019, 2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). IEEE, (2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)).
Research output: Chapter in Book/Published conference output › Conference publication
Rheometry based on free surface velocity
Al-behadili, A. J. M., Sellier, M., Nokes, R., Moyers-gonzalez, M. & Geoghegan, P. H., 4 May 2019, In: Inverse Problems in Science and Engineering. 27, 5, p. 689-709 21 p.
Research output: Contribution to journal › Article › peer-review

Open Access
File
2018
A response to Marquis et al (2017) What is the error margin of your signature analysis?
Morrison, G. S., Ballentyne, K. & Geoghegan, P., Jun 2018, In: Forensic Science International. 287, p. e11-e12 6 p.
Research output: Contribution to journal › Letter, comment or opinion › peer-review

Open Access
File
A Review of Arterial Phantom Fabrication Methods for Flow Measurement Using PIV Techniques
Yazdi, S. G., Geoghegan, P. H., Docherty, P. D., Jermy, M. & Khanafer, A., 15 Nov 2018, In: Annals of Biomedical Engineering. 46, p. 1697–1721
Research output: Contribution to journal › Article › peer-review

Open Access
File
Modelling nasal high flow therapy effects on upper airway resistance and resistive work of breathing
Adams, C. F., Geoghegan, P. H., Spence, C. J. & Jermy, M. C., 1 Aug 2018, In: Respiratory Physiology & Neurobiology. 254, p. 23-29
Research output: Contribution to journal › Article › peer-review

Open Access
File
2017
An efficient, self-orienting, vertical-array, sand trap
Hilton, M., Nickling, B., Wakes, S., Sherman, D., Konlechner, T., Jermy, M. & Geoghegan, P., Apr 2017, In: Aeolian Research. 25, p. 11-21 11 p.
Research output: Contribution to journal › Article › peer-review
A PIV comparison of the flow field and wall shear stress in rigid and compliant models of healthy carotid arteries
Geoghegan, P. H., Jermy, M. C. & Nobes, D. S., 21 Jul 2017, In: Journal of Mechanics in Medicine and Biology. 17, 3, 1750041.
Research output: Contribution to journal › Article › peer-review

Open Access
File
Experimental measurement of breath exit velocity and expirated bloodstain patterns produced under different exhalation mechanisms
Geoghegan, P. H., Laffra, A. M., Hoogendorp, N. K., Taylor, M. C. & Jermy, M. C., 1 Sep 2017, In: International Journal of Legal Medicine. 131, 5, p. 1193-1201 9 p.
Research output: Contribution to journal › Article › peer-review

Open Access
File
Regressive cross-correlation of pressure signals in the region of stenosis: Insights from particle image velocimetry experimentation
Docherty, P. D., Geoghegan, P. H., Huetter, L., Jermy, M. & Sellier, M., 1 Feb 2017, In: Biomedical Signal Processing and Control. 32, p. 143-149 7 p.
Research output: Contribution to journal › Article › peer-review
2016
An Experimental and Numerical Investigation of CO₂ Distribution in the Upper Airways During Nasal High Flow Therapy
Van Hove, S. C., Storey, J., Adams, C., Dey, K., Geoghegan, P. H., Kabaliuk, N., Oldfield, S. D., Spence, C. J. T., Jermy, M. C., Suresh, V. & Cater, J. E., 1 Oct 2016, In: Annals of Biomedical Engineering. 44, 10, p. 3007-3019 13 p.
Research output: Contribution to journal › Article › peer-review
Experimental and computational investigation of the trajectories of blood drops ejected from the nose
Geoghegan, P. H., Spence, C. J. T., Wilhelm, J., Kabaliuk, N., Taylor, M. C. & Jermy, M. C., 1 Mar 2016, In: International Journal of Legal Medicine. 130, 2, p. 563-568 6 p.
Research output: Contribution to journal › Article › peer-review
Fabrication of a compliant phantom of the human aortic arch for use in Particle Image Velocimetry (PIV) experimentation
Hütter, L., Geoghegan, P. H., Docherty, P. D., Lazarjan, M. S., Clucas, D. & Jermy, M. C., 30 Sep 2016, In: Current Directions in Biomedical Engineering. 2, 1
Research output: Contribution to journal › Article › peer-review

Open Access
File
2015
Application of a meta-analysis of aortic geometry to the generation of a compliant phantom for use in particle image velocimetry experimentation
Huetter, L., Geoghegan, P. H., Docherty, P. D., Lazarjan, M. S., Clucas, D. & Jermy, M. C., 1 Sep 2015, In: IFAC-PapersOnLine. 48, 20, p. 407-412 6 p.
Research output: Contribution to journal › Article › peer-review

Open Access
Visualization of the air ejected from the temporary cavity in brain and tissue simulants during gunshot wounding
Lazarjan, M. S., Geoghegan, P. H., Taylor, M. C. & Jermy, M. C., 1 Jan 2015, In: Forensic Science International. 246, p. 104-109 6 p.
Research output: Contribution to journal › Article › peer-review
2014
Experimental investigation of the mechanical properties of brain simulants used for cranial gunshot simulation
Lazarjan, M. S., Geoghegan, P. H., Jermy, M. C. & Taylor, M., Jun 2014, In: Forensic Science International. 239, p. 73-78 6 p.
Research output: Contribution to journal › Article › peer-review
Formation of back-spattered bloodstain patterns: Air flow visualisation and form of the damage in a brain tissue simulant
Lazarjan, M. S., Geoghegan, P. H., Taylor, M. C. & Jermy, M. C., 2014, Proceedings of the 19th Australasian Fluid Mechanics Conference, AFMC 2014.
Research output: Chapter in Book/Published conference output › Conference publication
Tracking blood drops ejected from the nasal cavity during violent assault
Geoghegan, P. H., Spence, C. J. T., Kabaliuk, N., Aplin, J., Wilhelm, J., Taylor, M. C. & Jermy, M. C., 2014, Proceedings of the 19th Australasian Fluid Mechanics Conference, AFMC 2014.
Research output: Chapter in Book/Published conference output › Conference publication
2013
Time-resolved PIV measurements of the flow field in a stenosed, compliant arterial model
Geoghegan, P. H., Buchmann, N. A., Soria, J. & Jermy, M. C., 3 May 2013, In: Experiments in Fluids. 54, 5, 1528.
Research output: Contribution to journal › Article › peer-review
2012
Fabrication of rigid and flexible refractive-index-matched flow phantoms for flow visualisation and optical flow measurements
Geoghegan, P. H., Buchmann, N. A., Spence, C. J. T., Moore, S. & Jermy, M. C., May 2012, In: Experiments in Fluids. 52, 5, p. 1331-1347 17 p.
Research output: Contribution to journal › Article › peer-review
Respiratory airway resistance monitoring in mechanically ventilated patients
Damanhuri, N. S., Chiew, Y. S., Docherty, P., Geoghegan, P. & Chase, G., 2012, 2012 IEEE-EMBS Conference on Biomedical Engineering and Sciences, IECBES 2012. p. 311-315 5 p. 6498135
Research output: Chapter in Book/Published conference output › Conference publication

Open Access
File
2010
SPIV and image correlation measurements of surface displacement during pulsatile flow in models of compliant, healthy and stenosed arteries
Geoghegan, P. H., Buchmann, N., Jermy, M. C., Nobes, D., Spence, C. J. T. & Docherty, P. D., 2010, p. 5-8. 4 p.
Research output: Unpublished contribution to conference › Unpublished Conference Paper › peer-review

Open Access

Patrick Geoghegan

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