Discipline: Aerospace Engineering, Mechanical Engineering
Research Group: Aerodynamics
Key words: Blended wing body, Hydrogen power, Drag reduction, Boundary layer transition, Natural laminar flow, Shape optimisation, Adjoint method
About the project
The environmental impact of aviation has now become a pacing issue, demanding greener future aircraft design. One of the most interesting technologies is the use of Hydrogen as fuel for propulsion, which produce water rather than CO2 as the product of combustion. It has been identified by the aerospace industry as the pathway to its zero-emission ambition. However there are a number of key technological challenges for Hydrogen powered transport aircraft. This project aims to address one of these challenges through aerodynamic design optimisation. While hydrogen is three times more energy efficient than fossil fuel per unit mass, the volume required to store hydrogen fuel is much higher. This necessitates a rethink on the current conventional design as the aircraft will be much more bulkier for fuel storage. Therefore efficient aerodynamic design for minimum drag becomes even more important. The blended wing body aircraft offers a large volume to surface ratio in comparison with the current popular designs, which will be further exploited for future Hydrogen powered aircraft. Fundamental flow physics will be simulated in order to delay boundary layer transition and therefore reducing the skin friction drag, a significant component of the total drag. The boundary layer around the aircraft along with the shock waves will be investigated in detail for the design at transonic speeds exploiting natural laminar flows.
A 1st Class or 2.1 MEng/MSc or equivalent degree in Aerospace, Mechanical or related Engineering degree.
Experience in applying and/or developing Computational Fluid Dynamics
Good knowledge of aerodynamics and fluid mechanics
Computational and programming skills in any language
Excellent communication skills, verbal and written
High motivation and initiation in research
Ability to conduct research Independently and in a team
If you are interested, please send an email to express your interest, and a copy of your CV with the contacts of two academic referees as a single pdf file to: Professor Ning Qin (firstname.lastname@example.org).
Application link https://www.sheffield.ac.uk/postgraduate/phd/apply/applying