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Department of Applied Mathematics and Theoretical Physics

Career

  • 2023 - present:  Associate Professor in Fluid Dynamics and Sustainability, DAMTP, University of Cambridge
  • 2023 - present: Fellow and Director of Studies in Mathematics, Corpus Christi College Cambridge
  • 2019-2023: Lecturer in Applied Mathematics, University College London
  • 2015-2019: Research Fellow, Gonville and Caius College, University of Cambridge
  • 2014-2015: Killam Postdoctoral Fellow, University of British Columbia, Vancouver
  • 2010-2014: Ph.D in Applied Mathematics, University of Cambridge.

 

I am an applied mathematician and fluid dynamicist. I am interested in using mathematics to model and understand physical processes in the world around us, including in environmental, industrial and biological contexts. Some particular research interests include non-Newtonian fluid dynamics, clogging and jamming in complex flows, the mechanics of deformable media, flow through porous media, granular and suspension mechanics, and heat and mass transfer.

Please see my personal website for more details www.damtp.cam.ac.uk/user/drh39/

Publications

Translating and squirming cylinders in a viscoplastic fluid
R Supekar, DR Hewitt, NJ Balmforth
– Journal of Fluid Mechanics
(2019)
882,
a11
Flow-driven compaction of a fibrous porous medium
DT Paterson, TS Eaves, DR Hewitt, NJ Balmforth, DM Martinez
– Physical Review Fluids
(2019)
4,
074306
Stable and unstable miscible displacements in layered porous media
JS Nijjer, DR Hewitt, JA Neufeld
– J Fluid Mech
(2019)
869,
468
Viscoplastic slender-body theory
DR Hewitt, NJ Balmforth
– Journal of Fluid Mechanics
(2018)
856,
870
The influence of a poroelastic till on rapid subglacial flooding and cavity formation
DR Hewitt, GP Chini, JA Neufeld
– Journal of Fluid Mechanics
(2018)
855,
1170
The dynamics of miscible viscous fingering from onset to shutdown
JS Nijjer, DR Hewitt, JA Neufeld
– Journal of Fluid Mechanics
(2018)
837,
520
Stability of three-dimensional columnar convection in a porous medium
DR Hewitt, JR Lister
– Journal of Fluid Mechanics
(2017)
829,
89
Taylor’s swimming sheet in a yield-stress fluid
DR Hewitt, NJ Balmforth
– Journal of Fluid Mechanics
(2017)
828,
33
Imbibition with swelling: Capillary rise in thin deformable porous media
M Kvick, D Mark Martinez, DR Hewitt, NJ Balmforth
– Physical Review Fluids
(2017)
2,
074001
Viscoplastic boundary layers
NJ Balmforth, RV Craster, DR Hewitt, S Hormozi, A Maleki
– Journal of Fluid Mechanics
(2017)
813,
929
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Research Groups

Fluid Mechanics
Solid Mechanics
Theoretical Geophysics

Room

H1.07

Telephone

01223 764067