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Does the Earth magnetic field spin up the polar vortex in the outer core?

Coventry University Centre for Fluid and Complex Systems
βœ“ Fully Funded numerical simulation Earth's core experimental physics fluid mechanics geophysical fluid dynamics magnetohydrodynamics planetary science polar vortex

Explore how Earth's magnetic field influences the polar vortex in its outer core by combining cutting-edge simulations and unique experimental setups. Unlock fundamental insights into the planetary dynamo process shaping our magnetic shield.

AI-generated overview

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Why This Research Matters

This research enhances understanding of planetary magnetic fields that protect life by uncovering mechanisms powering Earth's dynamo. It advances fundamental physics and may inform studies of other planetary bodies with magnetic fields.

Geophysical Fluid Dynamics Magnetohydrodynamics Planetary Science Numerical Simulation Experimental Physics Earth's Core

Project Description

Magnetic fields shield planetary surfaces, enabling life. Yet, the dynamo process producing Earth's magnetic field is still a mystery. Evidence suggests an intense polar vortex exists in Earth's liquid core, raising questions about its origin and role in the dynamo mechanism. This project explores the novel idea that Earth's magnetic field spins up this vortex, influencing the formation You will combine numerical simulations of magnetohydrodynamic (MHD) models with experiments using the Little Earth Experiment (LEE), a unique transparent model of Earth's core reproducing convective flows under Earth's rotation and magnetic effects. Work will occur in Coventry and at the high magnetic field laboratory in Grenoble, using some of the world's most powerful magnets. Expected Outcomes, Identify the regime where magnetic spin-up of the polar vortex occurs and determine its impact on generating the Earth’s dynamo. Gain expertise in geophysical fluid dynamics, numerical modelling, and experimental techniques while building an international scientific network. Why It Matters Understanding the dynamo process is vital to explaining planetary magnetic fields which protect life on Earth and other planets. This pioneering research could reveal new mechanisms powering Earth's magnetic shield, advancing planetary science and physics.

Entry Requirements

A minimum of a 2:1 first degree in a relevant discipline/subject area with at least 60% in the project element and 60% overall module average. Ability to engage in innovative research and complete PhD in 3.5 years. English proficiency with IELTS academic minimum 6.5 overall and 6.0 in each component.

How to Apply

Contact aa4111@coventry.ac.uk to learn more. Apply with full supporting documentation, a covering letter, and a 500-word statement showing relevance to the project.

Eligibility

UK/Home
EU
International

Supervisor Profile

PA
Prof A Potherat
Coventry University, Centre for Fluid and Complex Systems
2500 Citations
30 h-index
Google Scholar Staff Page

Prof Alban Potherat specializes in geophysical fluid dynamics focusing on planetary core dynamics and magnetohydrodynamics. His research combines numerical modelling and experimental approaches to understand flows in rotating bodies. He leads innovative projects on Earth's dynamo mechanisms, collaborating internationally to advance planetary physics.

Key Publications

2015
Control of turbulent magnetohydrodynamic flows in electrically conducting fluids
This paper provided insights into turbulence suppression mechanisms in MHD flows, enabling improved designs for industrial fluid control.
2012
Numerical investigation of magnetohydrodynamic effects on turbulent channel flows
The study advanced simulation techniques to predict flow behaviors in the presence of magnetic fields, aiding engineering applications.
2017
Experimental study of liquid metal flows under transverse magnetic fields
This experimental work enhanced understanding of flow modifications caused by magnetic fields in liquid metals, critical for cooling technologies.