Marensi, Elena, Dr

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Dr Elena Marensi

PhD, FHEA

School of Mechanical, Aerospace and Civil Engineering

Lecturer in Fluid Mechanics

Faculty Director: Equality, Diversity and Inclusion and Wellbeing (Interim)

e.marensi@sheffield.ac.uk
+44 114 222 7737

D244, Sir Frederick Mappin Building

Full contact details

Dr Elena Marensi
School of Mechanical, Aerospace and Civil Engineering
D244
Sir Frederick Mappin Building
Mappin Street
��«Ӱҵ
S1 3JD

Profile

I am a lecturer of Fluid Mechanics in the Department of Mechanical Engineering at the University of ��«Ӱҵ. Prior to this, I was an ISTplus Fellow in the Nonlinear Dynamics & Turbulence group at the Institute of Science and Technology Austria and a PDRA in the School of Mathematics and Statistics at the University of ��«Ӱҵ.

I hold a Ph.D. in Mechanical Engineering from the University of ��«Ӱҵ, jointly with the A*Star Institute of High Performance Computing in Singapore. I obtained my Bachelor and Master degrees in Marine Engineering & Naval Architecture from the University of Genoa, Italy.

My research focuses on transition to turbulence in wall-bounded shear flows, flow instabilities, turbulence modelling and control, and flow optimisation. To tackle these problems I combine mathematical tools with high-fidelity computer simulations and data-driven approaches applied to both numerical and experimental data.

Qualifications

Fellow of the Higher Education Academy (FHEA) (2023)

PhD in Fluid Mechanics, University of ��«Ӱҵ, Department of Mechanical Engineering (2016)
Master degree in in Marine Engineering & Naval Architecture, University of Genoa, School of Engineering (2012)
Bachelor degree in Marine Engineering & Naval Architecture, University of Genoa, School of Engineering (2010)

Research interests

Transition to Turbulence
Flow Optimisation
Turbulence control
Stability analysis
Nonlinear dynamics
Data-driven analysis & modelling

Publications

Journal articles

Xu D, Ricco P & Marensi E (2024) . Journal of Fluid Mechanics, 1000.
Zou Z, He J, Marensi E & He S (2024) .
Marensi E, Yalnız G & Hof B (2023) . Journal of Fluid Mechanics, 974.
Marensi E, Yalnız G, Hof B & Budanur NB (2023) . Journal of Fluid Mechanics, 954.
Sortino L, Zotev PG, Phillips CL, Brash AJ, Cambiasso J, Marensi E, Fox AM, Maier SA, Sapienza R & Tartakovskii AI (2021) . Nature Communications, 12.
Marensi E, He S & Willis AP (2021) . Journal of Fluid Mechanics, 919.
Marensi E, Yalnız G, Hof B & Budanur NB (2021) Symmetry-reduced Dynamic Mode Decomposition of Near-wall Turbulence.
Ding Z, Marensi E, Willis A & Kerswell R (2020) . Journal of Fluid Mechanics, 902.
Marensi E, Ding Z, Willis AP & Kerswell RR (2020) . Journal of Fluid Mechanics, 900.
Budanur NB, Marensi E, Willis AP & Hof B (2020) . Physical Review Fluids, 5(2).
Marensi E, Willis AP & Kerswell RR (2020) . Journal of Fluid Mechanics, 888.
Marensi E, Willis AP & Kerswell RR (2019) . Journal of Fluid Mechanics, 863, 850-875.
Marensi E & Ricco P (2017) . Physics of Fluids, 29(11).
Ricco P, Marensi E & Wu X (2017) . Journal of Fluid Mechanics, 817, 80-121.
Chu S, Willis A & Marensi E () The minimal seed for transition to convective turbulence in heated pipe flow. Journal of Fluid Mechanics.
Ding Z & Marensi E () . Physical Review E, 100(6).

Chapters

Liu J, Marensi E & Wu X (2022) , IUTAM Laminar-Turbulent Transition (pp. 587-598). Springer International Publishing

Conference proceedings papers

Zou Z, He J, Marensi E & He S (2023) . Proceeding of International Heat Transfer Conference 17, 14 August 2023 - 18 August 2023.
Doohan P, Marensi E, Willis AP & Hwang Y (2019) Two-scale interaction in near-wall turbulence. 11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019
Doohan P, Marensi E, Willis AP & Hwang Y (2019) Two-scale interaction in near-wall turbulence. 11th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2019
Marensi E, Ricco P & Wu X (2015) . Procedia IUTAM, Vol. 14 (pp 105-114)

Preprints

Xu D, Ricco P & Marensi E (2024) Excitation and stability of nonlinear compressible Görtler vortices and streaks induced by free-stream vortical disturbances, arXiv.
Chu S, Willis AP & Marensi E (2024) Laminarising turbulent pipe flow by linear and nonlinear optimisation, arXiv.
Chu S, Willis AP & Marensi E (2024) , arXiv.
Zhuang Y, Yang B, Mukund V, Marensi E & Hof B (2023) , arXiv.
Marensi E, Yalnız G & Hof B (2022) , arXiv.
Marensi E, Willis AP & Kerswell RR (2018) Stabilisation and drag reduction of pipe flows by flattening the base profile, arXiv.

Teaching interests

MEC449: Advanced Engineering Fluid Dynamics
MEC320: Computational Fluid Dynamics

Professional activities and memberships

(2023 – present) Co-lead of the UK Fluid Network (UKFN) Special Interest Group on “Flow instability, modelling and control”.
(2022 – present) Member of the UK Turbulence Consortium