Research Assistant or Associate in Fluid Mechanics

We are seeking a Research Assistant/Associate in Fluid Mechanics to join a cutting-edge project investigating perturbation dynamics and input–output behaviour in turbulent flows. Working at the intersection of theory, computation, and high‑fidelity simulation, the successful candidate will contribute to the development of a novel ensemble-based framework for analysing driven perturbations in wall‑bounded turbulence. This short, intensive 9‑month position offers an exciting opportunity to advance fundamental turbulence research using DNS/LES and data-driven optimisation techniques.

In this role, you will run DNS/LES simulations to study how small perturbations evolve within turbulent flows and contribute to developing a new ensemble‑based framework for analysing perturbation dynamics. You will process and interpret simulation data, develop the implementation of optimisation techniques and modelling approaches, and help identify the most receptive forcing modes in turbulent channel flow. Working closely with the PI and the research team, you will also produce clear visualisations and contribute to publications arising from the project.

• Strong background in fluid mechanics, applied mathematics, or a closely related area.
• Experience with computational fluid dynamics, ideally DNS/LES, and confidence working with large‑scale simulations.

•  Solid programming skills in languages commonly used for scientific computing (e.g. Python, C/C++, Fortran, MATLAB).

• Ability to analyse and interpret complex datasets, with good scientific judgement and attention to detail.
• A motivated, collaborative researcher with strong communication skills and enthusiasm for advancing fundamental turbulence research.

Research Associate: Hold a PhD in Fluid Mechanics, Engineering, Applied Mathematics or a closely related discipline, or equivalent research, industrial or commercial experience

Research Assistant: A first / masters degree (or equivalent) in Fluid Mechanics, Engineering, Applied Mathematics or a closely related discipline, or equivalent research, industrial or commercial experience

*Candidates who have not yet been officially awarded their PhD will be appointed as Research Assistant.

• The chance to work on an exciting, cutting‑edge turbulence project, contributing directly to new theoretical and computational developments in perturbation dynamics.
• The opportunity to join a highly active turbulence research group within the Department of Aeronautics, collaborating with experts in DNS/LES, dynamical systems, and data‑driven modelling.
• Hands‑on experience with high‑performance computing, advanced numerical methods, and ensemble‑based optimisation techniques.

• The opportunity to continue your career at a world-leading institution and be part of our mission to continue science for humanity.
• Grow your career: Gain access to Imperial’s sector-leading dedicated career support for researchers as well as opportunities for promotion and progression

• Sector-leading salary and remuneration package (including 39 days off a year and generous pension schemes).

This is a fixed‑term position, until 14/02/2027, with an expected start date as soon as possible. The post is based in the Department of Aeronautics at Imperial College London, and no additional background checks (such as DBS) are required for this role.

 If you require any further details on the role please contact: [Prof Yongyun Hwang] – [y.hwang@imperial.ac.uk].                                                       

Please note that job descriptions are not exhaustive, and you may be asked to take on additional duties that align with the key responsibilities mentioned above.

If you encounter any technical issues while applying online, please don't hesitate to email us at support.jobs@imperial.ac.uk . We're here to help.

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