Career
- 2017- date: DAMTP, Cambridge University
- 1996-2017: Mathematics, Bristol University
- 1992-1996: Mathematics, Newcastle University
- 1992 : PhD, MIT
Research
General fluid mechanics: the Navier-Stokes equations (nonlinear dynamics, transition and turbulence); geophysical and astrophysical fluid mechanics (e.g. convection; stably stratified flows; tidal, precessional and librational motion of planetary interiors and subsurface oceans; accretion disks);
Selected Publications
- see homepage (www.damtp.cam.ac.uk/user/rrk26)
Publications
On Constructing the Minimal Seed of Turbulence: Nonlinear Transient
Growth
– Journal of Fluid mechanics
(2010)
Instabilities of Tidally and Precessionally Induced Flows
– SOLAR AND PLANETARY DYNAMOS
(2010)
181
(doi: 10.1017/CBO9780511662874.024)
Transient Growth in Shear Flows: Linearity vs Nonlinearity
– Physical Review Letters
(2010)
A prediction for the optimal stratification for turbulent mixing
– Journal of Fluid Mechanics
(2009)
634,
487
(doi: 10.1017/s0022112009990711)
Axisymmetric Granular Collapse: A Transient 3D Flow Test of Viscoplasticity
– Phys Rev Lett
(2009)
102,
108305
Turbulent dynamics of pipe flow captured in a reduced model: puff relaminarization and localized 'edge' states
– Journal of Fluid Mechanics
(2008)
619,
213
(doi: 10.1017/s0022112008004618)
Highly symmetric travelling waves in pipe flow.
– Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
(2008)
367,
457
(doi: 10.1098/rsta.2008.0236)
Relative periodic orbits in transitional pipe flow
– Physics of Fluids
(2008)
20,
114102
(doi: 10.1063/1.3009874)
Transition in pipe flow: The saddle structure on the boundary of turbulence
– Journal of Fluid Mechanics
(2008)
613,
255
(doi: 10.1017/S0022112008003248)
Planar collapse of a granular column: Experiments and discrete element simulations
– Physics of Fluids
(2008)
20,
063302
(doi: 10.1063/1.2929375)
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