At a Glance
- Tasks: Develop cutting-edge numerical simulations for dynamic wall-turbulence interactions using advanced modelling techniques.
- Company: Join a leading research group at the University of Southampton focused on innovative engineering solutions.
- Benefits: Receive a stipend of £18,198 per annum plus tuition fees covered for up to 3.5 years.
- Other info: Applications are considered on a rolling basis until a suitable candidate is found.
- Why this job: Make a real impact in the field of fluid dynamics and contribute to groundbreaking research.
- Qualifications: Must have a strong undergraduate degree (UK 2:1 or equivalent) in a relevant field.
The predicted salary is between 18198 - 23657 £ per year.
The research of alternative novel propulsion systems relies on the capability to produce reliable and predictive numerical simulations of such systems including details of the moving parts. In recent years, substantial advancements have been achieved in the fields of Large Eddy Simulation (LES) and Immersed Boundary (IB) modeling techniques, paving the way for accurate predictions of time-dependent flow patterns around complex and dynamic marine structures.
This project is dedicated to the creation of a comprehensive numerical framework, with the primary objective of comprehending and simulating unsteady boundary layers on dynamic geometries. Understanding and modeling unsteady boundary layers on mobile structures is of paramount significance. The novel “Immersed Large Eddy Simulation” (ILES) approach developed will include two main parts: the combination of IB into a CFD solver with a dynamically adaptive grid, and a deep learning model for the closure of the sub-grid-scales terms in LES.
The first step is to create a tool for the high-fidelity numerical simulation of such phenomena. The Wavelet Adaptive Multiresolution Representation (WAMR) method, developed by the project’s lead supervisor, uses the wavelet representation to generate a dynamically adaptive 3D grid. The second step is to use the database created to train generative adversarial networks (GANs) to overcome the limitations in modeling the interaction between moving walls and turbulence.
The project aims to:
- further develop WAMR to be efficiently used for massive numerical simulations (both DNS and LES) on High-performance computing (Tier-1) facilities;
- investigate and model moving wall-turbulence interaction in the unique database realized with WAMR.
The main tasks of the project are:
- Develop and implement an asynchronous time integrator for WAMR
- Adapt the WAMR parallel algorithm to new computational resources (hybrid parallelization)
- Exploit the use of GPU for some tasks (e.g.: wavelet transform)
- Enhancement of the scalability performance up to Exa-scale computing
- Collection and production of databases (DNS) for wall-bounded turbulence (to also be used for machine learning training in parallel projects)
- Investigation of interaction between moving walls and turbulence
- Data-driven (GAN) modelling of the wall-bounded turbulence
- Integration into WAMR of classical models as well as data-driven models
- A-posteriori validation of the models (LES)
If you wish to discuss any details of the project informally, please contact Dr. Temistocle Grenga, Aerodynamics and Flight Mechanics Research Group.
Entry Requirements: A very good undergraduate degree (at least a UK 2:1 honours degree, or its international equivalent).
Closing Date: 31 August 2024. Applications will be considered in the order that they are received, the position will be considered filled when a suitable candidate has been identified.
Funding: For UK students, Tuition Fees and a stipend of £18,198 (+~30%) tax-free per annum for up to 3.5 years.
How To Apply: Apply online: Select programme type (Research), 2024/25, Faculty of Engineering and Physical Sciences, next page select “PhD Engineering & Environment (Full time)”. In Section 2 of the application form you should insert the name of the supervisor Dr Temistocle Grenga.
Applications should include:
- Research Proposal
- Curriculum Vitae
- Two reference letters
- Degree Transcripts/Certificates to date
For further information please contact: feps-pgr-apply@soton.ac.uk
PhD in Data-Driven CFD for Dynamic Wall-Turbulence in Southampton employer: University of Southampton
As a leading research institution, we offer an exceptional environment for PhD candidates in Data-Driven CFD for Dynamic Wall-Turbulence. Our commitment to innovation is reflected in our cutting-edge facilities and collaborative work culture, which fosters professional growth and encourages the exploration of novel ideas. With access to high-performance computing resources and a supportive academic community, you will have the opportunity to contribute to groundbreaking research while developing your skills in a dynamic and intellectually stimulating setting.
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We think this is how you could land PhD in Data-Driven CFD for Dynamic Wall-Turbulence in Southampton
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We think you need these skills to ace PhD in Data-Driven CFD for Dynamic Wall-Turbulence in Southampton
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