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Department of Applied Mathematics and Theoretical Physics

Fellowship Positions

  • 2024-date: Bye-Fellow, St. Catharine's College, University of Cambridge.

Postdoctoral Positions

  • 2025-date: Research Associate in the Fluid Dynamics of Contact Transfer, DAMTP. Supervisors Prof. Stuart Dalziel.
  • 2023-2025: Research Associate in the Fluid Dynamics of Sinus Infections, DAMTP. Supervisor Prof. Eric Lauga.
  • 2022-2025: Research Associate in the Fluid Dynamics of Decontamination, DAMTP. Supervisors Prof. Stuart Dalziel and Prof. Julien Landel.

Education

  • 2018-2022: PhD Student, DAMTP. Thesis title: Biological Physics of Collective Motion. Supervisor Prof. Raymond Goldstein.
  • 2017-2018: MMath, Mathematical Tripos, Trinity College Cambridge. Distinction. 
  • 2014-2017: BA, Mathematical Tripos, Trinity College Cambridge. First class honours (all years).

Research

George is an applied mathematician and fluid dynamicist specialising in combining mathematical modelling with experimentation to understand the physical processes driving phenomena in complex systems. Understanding these processes is key when tackling a wide range of environmental and industrial challenges such as the transport of debris by ciliary carpets or the decontamination of hazardous materials. 

Currently, George's research centres around contact transfer. Fluid transfer through direct contact is one of the most common mechanisms by which fluids move between surfaces. Everyday examples include using a handkerchief to absorb spilt coffee or picking up infectious droplets after a sneeze. In the context of decontamination, this is also a key part of exposure assessments that seek to estimate the dose received from interacting with a contaminated environment, underpinning hazard management in biological and chemical contexts. It is also of importance for printing, additive manufacturing and similar processes.

George is exploring the quintessential contact transfer problem, a liquid bridge between two receding horizontal plates,  looking at the interplay between inertia, surface tension, gravity, and interfacial surface chemistry. He combines numerical solutions generated from Young-Laplace frameworks with asymptotic analytical approximations to compare with experimental liquid bridge profiles. 

https://scholar.google.com/citations?user=wh0p_wEAAAAJ&hl=en

Academic Service

George has refereed papers since 2021 for a range of top-class journals including Physical Review E, Physical Review Fluids and the Journal of Fluid Mechanics (JFM).

Teaching

since 2024: Laboratory Demonstrations in Fluid Mechanics Part II Maths Tripos Lecture Course

Lecturing the course “Laboratory Demonstrations in Fluid Mechanics".

since 2024: Undergraduate Natural Science Supervisions

One-on-two tutorials for undergraduates reading at St. Catharines College for the Natural Science Tripos at Cambridge teaching mathematical techniques ( > 190 hours).

2025: Laboratory Demonstrations in Fluid Mechanics Part III (MMath/MASt) Lecture Course

Lecturing the Lent masters level course “Laboratory Demonstrations in Fluid Mechanics".

2018 - 2025: Undergraduate Mathematics Supervisions

One-on-two tutorials for undergraduates reading for the Mathematical Tripos at Cambridge in a range of applied mathematical methods courses ( > 450 hours).

 

Publications

Lagrangian transport by ciliary arrays
GT Fortune, E Lauga
– Physical Review Research
(2025)
7,
043209
Biophysical fluid dynamics in a Petri dish
GT Fortune, E Lauga, RE Goldstein
– Physical Review Fluids
(2024)
9,
083101
Biophysical Fluid Dynamics in a Petri Dish
GT Fortune, E Lauga, RE Goldstein
(2024)
Droplet absorption and spreading into thin layers of polymer hydrogels
MA Etzold, GT Fortune, JR Landel, SB Dalziel
– Journal of Fluid Mechanics
(2023)
974,
a7
Biofilm Growth under Elastic Confinement
R Goldstein, G Fortune, N Oliveira
– Phys Rev Lett
(2022)
128,
178102
Droplet absorption and spreading into thin layers of polymer hydrogels
MA Etzold, GT Fortune, JR Landel, SB Dalziel
(2022)
Biological Physics of Collective Motion: Circular Milling in Symsagittifera roscoffensis and Related Questions of Self-Organisation
G Fortune
(2022)
The fluid dynamics of collective vortex structures of plant-animal worms
GT Fortune, A Worley, AB Sendova-Franks, NR Franks, KC Leptos, E Lauga, RE Goldstein
– Journal of Fluid Mechanics
(2021)
914,
a20

Research Group

Environmental and Industrial Fluid Dynamics

Room

H0.04