Contact details

Marc Ewenz Rocher



I completed an MEng in Aeronautical Engineering at Imperial College London in 2017 and spent the third year of my undergraduate studies at the National University of Singapore (NUS). My Master’s thesis focused on the influence of strong perturbations on wall-bounded flows. More specifically, I discovered a previously unknown relationship between three geometric parameters of spanwise repeating obstacles on a flat plate to the mechanisms by which canonical turbulent boundary layers behind these objects eventually develop. The results were published in the Physical Review Fluids in January 2018.

In October 2017 I started my DPhil in Oxford under the supervision of Prof. Matthew McGilvray. I am investigating the application of Transpiration Cooling on hypersonic vehicles. Transpiration Cooling is a novel thermal protection technology by which a coolant gas transpires a porous medium and reduces its temperature through internal convection as well as through the formation of a protective layer which acts as a barrier between the material surface and the searing hot gas. I am experimentally investigating whether this layer can shield the transpired material from activated species and hence mitigate surface oxidation. Ultra-High-Temperature Ceramics (UHTCs) start oxidising at 1000 °C, but have a melting point of more than 3000 °C. If the oxidation threshold was raised, these UHTCs would have extremely high operating temperatures that would push the boundaries of hypersonic flight.

In my spare time I captain the St Edmund Hall Boat Club men’s team and like to play tennis occasionally.