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PhD Studentship: Ship hull hydrodynamics

The University of Edinburgh

Qualification Type: PhD
Location: Edinburgh
Funding for: UK Students, EU Students, International Students
Funding amount: Funds, including stipend and university fees, are available for both international and home applicants.
Hours: Full Time, Part Time
Placed On: 12th May 2022
Closes: 11th July 2022
 

Principal Supervisor: Dr Ignazio Maria Viola

Eligibility: Minimum entry qualification - an Honours degree at 2:1 or above (or International equivalent) in a relevant science or engineering discipline, possibly supported by an MSc Degree.

Applicants must have studied fluid mechanics in their undergraduate courses, and must demonstrate knowledge of the fundamentals of turbulent flow. Expertise in computational fluid dynamics and experience in OpenFOAM is desirable but not essential. 

The project: This project is a collaboration between the University of Edinburgh and AkzoNobel’s Marine, Protective & Yacht Coatings, the world leader in marine coatings, and will include a three-month secondment at AkzoNobel. 

The challenge of predicting the resistance of ship hulls in real sailing conditions is due to the wide range of length-scales involved, from the micron-scale of the coating roughness to the metre-scale of the ship's boundary layer thickness (Raupach et al. Appl. Mech. Rev. 44 1991, Gad-el-Hak Appl. Mech. Rev. 49 1996). The width of this range of scales, and the fluid mechanics interaction between the scales, make the physics impossible to be replicated exactly in a laboratory setting (Gad-el-Hak Prog. Aerosp. Sci. 38 2002, Jimenez Annu. Rev. Fluid Mech. 36 2004). 

Recent work funded by AkzoNobel's Marine, Protective & Yacht Coatings and undertaken at the University of Edinburgh showed the strong interaction between roughness features of different sizes. However, current practice is to consider a single equivalent roughness height to model the effect of roughness on ship hulls (Yeginbayeva et al. Proc. Inst. Mech. Eng. Part M J. Eng. Marit. Environ. 233 2019). How to model the non-uniform distributions of roughness and combination of micro and macro roughnesses in numerical simulations of ship hulls is currently unknown (Chung et al, Annu. Rev. Fluid Mech. 53 2021; Andersson et al, Appl. Ocean Res. 99 2020). This project aims to address this key industry challenge with fundamental fluid mechanics research. 

The aim of this project is to develop a methodology to accurately predict the friction resistance of ship hulls at full scale accounting for heterogenous fouling roughness, including hard fouling such as barnacles, and patchy slime with different thickness. New theoretical models of the interaction between different roughness features will be developed. These will be implemented into a Navier-Stokes code (using the OpenFOAM tool) to compute the friction resistance of a full-scale hull for different surface conditions.

Funding: funds, including stipend and university fees, are available for both international and home applicants.

Closing Date: there is no closing date. Applications are processed as received. The position is open until filled. 

To apply: Before applying, applicants must submit CV and cover letter by email to Dr Ignazio Maria Viola at i.m.viola@ed.ac.uk. We will try to reply to all enquiries within one week. Selected applicants will be invited for an interview. Only candidates that have been succesfully passed the interview stage will be invited to apply online at https://edin.ac/2v7HvCK.

Further Information: 

For more information on the research environment, see the website of the research group of the main supervisor, Dr Ignazio Maria Viola: www.voilab.eng.ed.ac.uk

For more information on the industrial partner, see https://www.akzonobel.com/en/about-us/our-businesses/marine-protective-a...

The University of Edinburgh is committed to equality of opportunity for all its staff and students, and promotes a culture of inclusivity. Please see details here: https://www.ed.ac.uk/equality-diversity

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