Understanding risk due to Reynolds scaling effects for future aircraft development

This project will investigated Reynolds scaling effects to help support the development of future aircraft. 

In the development of future aircraft, Reynolds number scaling effects present a critical challenge, particularly when transitioning from small-scale wind tunnel models to full-scale aircraft. These scaling effects often lead to discrepancies in aerodynamic predictions, introducing uncertainties in key performance metrics such as lift, drag, and fuel efficiency. Inaccurate predictions can cascade into suboptimal designs, ultimately impacting mission effectiveness, operational costs, and sustainability – areas of growing importance for next-generation air systems. Furthermore, the inability to accurately replicate full-scale flow conditions in wind tunnel testing increases the risk of costly design modifications during later stages of development. 

To address these challenges, computational fluid dynamics (CFD) simulations are essential for better accounting for Reynolds number scaling. High-fidelity CFD tools, complemented by turbulence modeling techniques that incorporate scale effects, provide a more accurate representation of flow physics. These simulations must work in synergy with improved wind tunnel testing methodologies to more closely mimic full-scale conditions. Incorporating these approaches early in the design process via appropriate data fusion techniques ensures a robust and reliable understanding of scaling effects, reducing risks and accelerating the design-to-production timeline.  

For informal enquiries please get in touch with the Professor Andrea Da Ronch – A.Da-Ronch@soton.ac.uk 

Funding for this project is offered by the Centre for Doctoral Training in Complex Integrated Systems for Defence & Security (CISDnS), which will recruit motivated and inquisitive candidates across the themes of Digital, Physical and Biological systems to provide a diverse and interconnected cohort training environment. You can read more about the Centre and the training programme at https://cisdns-cdt.ac.uk/  

To discuss aspect related to the CISDnS CDT please contact the directorate – cisdns@soton.ac.uk  

This PhD studentship is open only to UK applicants. This project is suitable for applicants with a background in aeronautical and astronautical, or mechanical engineering.  

CISDnS is committed to promoting equality, diversity and inclusivity. We welcome all applicants regardless of their gender, ethnicity, disability, sexual orientation or age, and will give full consideration to applicants seeking flexible working patterns and those who have taken a career break or are transitioning into a new role. The University has a generous maternity policy, onsite childcare facilities, and offers a range of benefits to help ensure employees’ well-being and work-life balance. 

Closing date: 5th May 2025

Entry requirements: A very good undergraduate degree (at least a UK 2:1 honours degree, or its international equivalent). Following the diversity objectives of CISDnS, we will accept many forms of equivalent prior learning.

Funding: Full-time studentships will cover UK tuition fees and an enhanced tax-free stipend of approx. £24,700 per year for 4 years, along with a substantial budget for research, travel, and centre activities.  

How to apply

Search for a Postgraduate Programme of Study (soton.ac.uk).  

Select Full-time or Part-time, programme type (Research), 2025/26, Faculty of Engineering and Physical Sciences, next page select “iPhD Complex Integrated Systems in Defence & Security (Full-Time)” 

In Section 2 of the application form you should insert the name of the supervisor Professor Andrea Da Ronch.

Applications should include:

curriculum vitae giving details of your academic record and stating your research interests

name two current academic referees together with an institutional email addresses in the Reference section of the application form. On submission of your online application your referees will be automatically emailed requesting they send a reference to us directly by email.

your academic transcript and degree certificate (translated if not in English) – if you have completed both a BSc & an MSc, we require both.

include a short statement of your research interests in the Personal Statement section of the application form.