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
Variational identification of minimal seeds to trigger transition in plane Couette flow
(2011)
Exchange flow of two immiscible fluids and the principle of maximum flux
– Journal of Fluid Mechanics
(2011)
682,
132
(doi: 10.1017/jfm.2011.190)
Slug genesis in cylindrical pipe flow
– Journal of Fluid Mechanics
(2010)
663,
180
(doi: 10.1017/s0022112010003435)
Using Nonlinear Transient Growth to Construct the Minimal Seed for Shear Flow Turbulence
– Physical Review Letters
(2010)
105,
154502
Edge states and slugs in cylindrical pipe flow.
– Mécanique & Industries
(2010)
11,
157
(doi: 10.1051/meca/2010027)
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
– Physical Review Letters
(2009)
102,
108305
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