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PhD Studentship: Stability and Transition in Compressible Shear Flows

Coventry University - Centre for Fluid and Complex Systems

Qualification Type: PhD
Location: Coventry
Funding for: UK Students, EU Students, International Students
Funding amount: Tuition Fees and Stipend
Hours: Full Time
Placed On: 14th August 2023
Closes: 25th October 2023

Laminar-turbulent transition, the process of how laminar flows become turbulent, is critical in many engineering applications. For example, the onset of turbulence dramatically increases the drag and heat transfer on the surface of aerial vehicles or compressor blades leading to increased fuel consumption and decreased system performance. In these high-speed flow systems, it is important to consider the fluid compressibility that introduces additional phenomena such as heat transfer, acoustic waves or even shocks if the flow is supersonic. While compressible turbulence has been widely studied in simulations and experiments, there is less theoretical study on how compressible flows become unstable and turbulent via the transition. This information is essential for the flow control required to reduce any structural/thermal loads and improve the system performance. This motivates the project with the objectives: (i) to investigate instabilities and laminar-turbulent transition in compressible shear flows; and, (ii) to develop a new physics-based framework for the optimal flow control. Through the project, we aim to advance our understanding of compressible turbulence and achieve a new methodology that minimise the drag and fuel consumption for systems with fluid flow. This project will have a broad impact on the field of engineering and aerodynamics in particular. 

It is expected that the successful candidate holds or be on course for a BSc or MSc degree in mechanical or aerospace engineering, applied mathematics, or physics. The candidate should be motivated to perform theoretical analyses (e.g. stability analyses) and numerical simulation with knowledge of programming languages such as C++, Fortran, MATLAB, etc. Experience with parallel computing is seen as an advantage but not a requirement.

Informal enquiries are required and should be addressed to Dr Junho Park (junho.park@coventry.ac.uk). Please send a full CV and transcript of grades before completing the Coventry application process.

Candidate Specification

  • A bachelor’s (honours) degree in a relevant discipline/subject area with a minimum classification of 2:1 and a minimum mark of 60% in the project element (or equivalent), or an equivalent award from an overseas institution.
    PLUS 
  • the potential to engage in innovative research and to complete the PhD within 3.5 years
  • An adequate proficiency in English must be demonstrated by applicants whose first language is not English. The general requirement is a minimum overall IELTS Academic score of 7.0 with a minimum of 6.5 in each of the four sections, or the TOEFL iBT test with a minimum overall score of 95 with a minimum of 21 in each of the four sections.

 For further details please visit:  https://www.coventry.ac.uk/research/research-opportunities/research-students/making-an-application/research-entry-criteria/

How to apply

All applications require full supporting documentation, and a covering letter – plus a supporting statement of up-to 2000-words showing how the applicant’s expertise and interests are relevant to the project. 

To find out more about the project please contact Dr Junho Park – junho.park@coventry.ac.uk

To apply on line please visit: https://pgrplus.coventry.ac.uk/

Funding Details

Tuition Fees and Stipend

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