Sunshine

Nikolai

A winter sun

Supervisors:
Steve Tobias & Evy Kersalé

About me

I am a second year PhD student at the University of Leeds. I am looking at the anelastic approximation on the magnetohydrodynamics (MHD) equations and investigating in which parameter regimes it captures the dynamics of buoyancy and convection problems. I have a first class Masters degree from Bristol in mathematics and physics. Fluids interest me because the problems are relatively simple to understand and yet very hard to solve.
Outside of work I try to be active. I'm very concerned by humans influence on the world. I am involved in campaigns/ activities with the aim of challengeing people to think about their actions and bring about change such as green action. I enjoy cycling and walking; anything to get out of the concrete jungle. I'm also part of a bicycle repair collective The Pedallers Arms.

My PhD problem

Lantz (1992) showed that if the atmosphere is nearly adiabatic (with the polytropic index being equal to 1.5) then the anelastic MHD equations can be simplified to three variables: entropy, magnetic field and velocity. I am also interested in when this additional simplification breaks down. Currently I am coding the linear equations for the compressible, anelastic and anelastic with a nearly adiabatic atmosphere. I will then investigate the non-linear two-dimensional problem. Update: I've submitted my PhD.

Documents (in .pdf)

My PhD. thesis, submitted.

My first paper in GAFD.

My poster, with a few early results.

CV

Transfer report:, which I am happy to say I passed!
Keele talk: at EPFDC, giving an introduction to MHD.
Masters project investigated the drag when a super-critical flow met a cylinder but I became side-tracked and looked more at the interaction of shocks in shallow water.

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