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Faculty of Mathematics



  • 2016-date: PhD in Applied Mathematics, DAMTP, University of Cambridge
  • 2018: Geophysical Fluid Dynamics Fellow, Woods Hole Oceanographic Institution
  • 2012-2016: MMath in Mathematics, Trinity College, University of Oxford


I am a member of the Department of Applied Mathematics and Theoretical Physics and the Environmental and Industrial Fluid Dynamics research group. My current research interests are instability, turbulence transition and mixing within the context of ocean dynamics. I also work closely with the Atmosphere-Ocean Dynamics research group.

I have been investigating the applicability of marginal stability to turbulent transitions in stratified shear flows, using numerical simulations of Kelvin-Helmholtz instability. My current work involves simulating the internal wave field of the ocean to identify the key mechanisms by which waves break and enhance mixing. Quantifying properties of the ensuing stratified turbulent flow will also provide insight into small-scale ocean mixing and may help to develop improved parametrisations for global circulation models.



  • IA Differential Equations (Michaelmas 2017)
  • IA NST Mathematics Course B (2018-2019)
  • IB Fluid Dynamics (Lent 2018, Lent 2019)
  • IB Quantum Mechanics (Michaelmas 2018)
  • IB Variational Principles (Lent 2017, Lent 2018, Michaelmas 2018)

Example Classes

  • III Hydrodynamic Stability (Michaelmas 2017)



Testing linear marginal stability in stratified shear layers
CJ Howland, JR Taylor, CP Caulfield
– Journal of Fluid Mechanics
It’s Harder to Splash on Soft Solids
CJ Howland, A Antkowiak, JR Castrejón-Pita, SD Howison, JM Oliver, RW Style, AA Castrejón-Pita
– Physical review letters

Research Groups

Atmosphere-Ocean Dynamics
Environmental and Industrial Fluid Dynamics




01223 760461