Transpiration Cooling for Hypersonic Vehicles

Lead Research Organisation: University of Oxford
Department Name: Engineering Science

Abstract

Transpiration cooling is the addition of a coolant through a porous material into the sub-layer of a boundary layer. This active cooling system has potential use in hypersonic vehicles where an extremely hot plasma is generated when flying through an atmosphere, resulting in enormous heat fluxes to the vehicle. Transpiration cooling can reduce the overall heat-flux through internal cooling of the material and the coverage of the external surface with a cool gas. This technology could enable the reusability of future space planes, moving past current one-mission ablative heat shield technology. The current research will underpin the fundamental understanding required to make the technology a reality in future flight vehicles.

My PhD will look to investigate the heat transfer augmentation when coolant is introduced through porous materials. The geometry of interest and freestream conditions will be determined in collaboration with Reaction Engines and use of numerical simulations and systems level codes will be applied to determine suitable candidate geometries. Experiments will be performed in the University of Oxford hypersonic wind tunnels to experimentally determine the effects on heat flux.

This project falls under the EPSRC Engineering Research Area. My project is co-funded by Reaction Engines.

Studentship Projects

Project Reference Relationship Related To Start End Student Name
EP/R512333/1 01/10/2017 30/09/2021
1939610 Studentship EP/R512333/1 01/10/2017 30/09/2021 Imran Naved