Personal profile
Opportunities
Postgraduate opportunities
I welcome enquiries from prospective students wishing to work in the areas of geophysical fluid dynamics, hydrodynamic stability, boundary-layer theory, fundamental fluid dynamics or similar.
Past student and post-doc collaborators include:
- Maan Al-Azhari (Ph.D. 2003)
- Xinjun Cui (Ph.D. 2003)
- Iain Harrison (Ph.D.)
- Dr. Yakun Guo (joint grant: PDRA )
- Dr. Md. Amirul Islam Khan (joint grant: PDRA 2002-2004)
- Catherine Kindred (joint supervision) (M.Phil. 2004 - 2005)
- Philip Haines (Ph.D. 2006 - 2009)
- Catherine Saunders (Ph.D. 2009 - 2013)
- Daniel Livesey (Ph.D. 2012 - 2016)
- Jay Unadkat (Ph.D. 2012 - 2016)
- Monisha Renganathan (Ph.D 2016 - 2020)
- Anthony Williams (Ph.D 2015 - 2018)
- Sean Edwards (Ph.D 2018 - 2022)
- Henry Broadley (Ph.D 2020 - 2024)
- William Skipwith (Ph.D 2024 -)
- Matthew Fields (Ph.D 2024-)
My group
Research Group(s)
Biography
My background is in (applied) mathematics, but I specialise in the field of fluid mechanics. More specifically, the stability of fluid flows and asymptotic/computational methods. I am particularly interested in: (i) geophysically or industrially relevant flows , (ii) boundary layers and (iii) exact reductions of the Navier-Stokes equations and their role in 'real' geometries.
Keywords: rotating, stratified, particle-laden, exact solution, high-speed flow, vortex, jet, plume, spin-up, suspensions, bifurcation, hydrodynamic, stability.
Research interests
More details are available here.
My research is primarily aimed towards trying to predict continuum mechanics behaviour by a combination of asymptotic, numerical and experimental techniques. Recent work has covered:
- Corrosion modelling via reaction/diffusion models.
- Geophysical fluid dynamics: rotating flows, stratified flows, interfacial flows, particle-laden flows.
- Fluid mechanics: stability theory, high-speed flow.
Areas of expertise
- Q Science (General)
- Stability theory
- Hydrodynamics
- High-speed flows
- Corrosion models
Research Beacons, Institutes and Platforms
- Dalton Nuclear Institute
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 14 Life Below Water
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Collaborations and top research areas from the last five years
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Growth of reattachment streaks in hypersonic compression-ramp flow
Broadley, H. & Hewitt, R., 25 Dec 2025, In: Journal of Fluid Mechanics. 1025, p. A461-20 20 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Hydride prediction during late-stage oxidation of uranium in a water vapour environment
Natchiar, S. R. M., Hewitt, R. E. & Monks, P. D. D., 10 Aug 2024, In: Solid State Ionics. 415, 116651.Research output: Contribution to journal › Article › peer-review
Open Access -
High-frequency instabilities in supersonic compression-ramp flow
Broadley, H., Hewitt, R. & Gajjar, J., 10 Aug 2023, In: Journal of Fluid Mechanics. 968, A5.Research output: Contribution to journal › Article › peer-review
Open Access -
Shallow katabatic flow on a non-uniformly cooled slope
Hewitt, R., Unadkat, J. & Wise, A., 1 Apr 2023, In: Environmental Fluid Mechanics. p. 351–368Research output: Contribution to journal › Article › peer-review
Open AccessFile98 Downloads (Pure) -
Stability of natural convection in a heated vertical corner
Edwards, S. & Hewitt, R., 15 Aug 2023, In: International Journal of Heat and Mass Transfer. 210, 124177.Research output: Contribution to journal › Article › peer-review
Open Access