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UCL Mechanical Engineering
Faculty of Engineering Sciences


Joined UCL: September 2014

Andrew Redfearn

  • UCL Mechanical Engineering

Contact Andrew Redfearn


Dr Ben Hanson

Research Area


Research outline

I research the fluid mechanics of swallowing. In particular, I look at how the fluid behaviour of a swallowed bolus changes under healthy and dysphagic conditions. To treat patients with reduced swallow function (dysphagia) starch and gum thickeners are used to alter the consistency of drinks to make them easier to swallow. I aim to investigate how these non-Newtonian fluids behave during a simulated swallow by measuring their flow dynamics in an oral model. Techniques used include particle image velocimetry, high speed video and fluid pressure sensing. A better scientific understanding of how starch and gum thickened fluids behave during the oral stage of swallowing will help improve the effectiveness of this treatment method for dysphagia patients.


I originally studied Physics at the University of Leeds from 2007 – 2010. Then worked at Symphony Environmental Plc in Borehamwood as a technical executive, from 2010 – 2012. Here I ran quality control tests on biodegradable polymer products. I came to UCL in 2012 to do the MSc course in Mechanical Engineering. Ben Hanson became my supervisor in 2013 when I started a MRes which I completed in 2014. This work lead on to my current PhD.

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