School of Mathematics, Statistics and Physics

Staff Profile

Professor Yuri Sergeev

Professor of Engineering Mathematics

Background

Qualifications

MSc (1971) Moscow State University.
PhD (1977) Institute for Problems in Mechanics, USSR Academy of Sciences
DSc (1993) Russian Academy of Sciences

Memberships

Fellow of the Institute of Mathematics and its Applications (FIMA);
Chartered Mathematician (C.Math); Chartered Scientist (C.Sci)
Member of the American Physical Society.
Member of the London Mathematical Society;
Member of the New York Academy of Sciences.

Languages

English, Russian

Informal Interests

Classical music, literature, history of arts, history of science

Google Scholar Profile


Research

Research Interests

Quantum and classical turbulence; Superfluidity; Thermal quasiparticle excitations in helium 3; Flow visualization in turbulent superfluids; Theoretical fluid dynamics; Two-phase turbulence; Dense fluid-particulate flows.

Other Expertise

PDF modelling of turbulent two-phase flows. Low temperature physics. Physico-chemical hydrodynamics. Hydrodynamic stability.

Current Work

Interactions between thermal quasiparticle excitations and vortex structures in helium 3.
Decay of quantum turbulence.
Motion of tracer particles in turbulent superfluid helium II.

Future Research

Interactions of thermal quasiparticle excitations with vortex rings and dense vortex tangle in helium 3.
Development of new models of particulate motion in turbulent superfluids, in particular in thermal counterflow.
Regimes of decay of quantum turbulence: theory and numerical study.

Esteem Indicators

Keynote and invited lectures:
Keynote lecture at the Symposium "Vortices, Superfluid Dynamics, and Quantum Turbulence", 11-16 April 2010, Helsinki.
Keynote lecture at 9th Engineering and Applications Conference EMAC2009, Adelaide, Australia, 6-9 December 2009.
Invited keynote lecture at the Workshop on Topics in Quantum Turbulence, Trieste, 16-20 March 2009.
Invitation received to deliver a keynote lecture at 8th Conference on Cryocrystals and Quantum Crystals CC-2010, Chernogolovka, Russia, July 26-31, 2010.
Invited lecture at the University of South Australia, Adelaide, December 2009.
Invited lecture at the Abdus Salam International Centre for Theoretical Physics, Trieste, March 2009.
Invited lecture course at the Summer school "Vortices and Turbulence at Very Low Temperatures", 2 - 6 July 2007, International Centre for Mechanical Sciences, University of Udine, Italy
Invited lecture at the Second International Conference of Applied Mathematics, Plovdiv, Bulgaria, August 12-18, 2005.

Invited review article:
Invited review article, published in Journal of Low Temperature Physics (2009, vol. 157, pp.429-475), on the particle motion and flow visualization in superfluid helium II.

Conference organising:
Co-organiser and Co-chairman of the discussion "Visualization of Quantum Turbulence" at ULT2008 - International Conference "Frontiers of Low Temperature Physics", August 13th-17th 2008, Royal Holloway College, University of London.
Organiser of the Summer School "VORTICES AND TURBULENCE AT VERY LOW TEMPERATURES", 2 and 6 July 2007, International Centre for Mechanical Sciences, University of Udine, Italy.
Topic Leader ("Advancing the Fundamentals") of the 7th World Congress of Chemical Engineering, Glasgow, 10-14 July 2005.

I have been invited to referee research proposals for:
United States Civilian Research and Development Foundation;
Netherlands Foundation for Fundamental Research of
Matter (FOM);
Israel Science Foundation (ISF).

Funding

Research Grants:
Leverhulme Trust grant RES/0581/7297 "Visualization of Quantum Turbulence", £121,308, MSE 40%, PI C.F.Barenghi
EPSRC GR/T08876/01 "The fluid dynamics of PIV visualisation in
superfluid helium", £187,394, MSE 40%, PI C.F.Barenghi.
EPSRC EP/D061601 "Developing Novel Applications of PDF Based
Models", PI D.C.Swailes.

Teaching

Undergraduate Teaching

ENG1001: Engineering Mathematics, 10 cr.
ENG2008: Analytical Methods in Marine Technology, 5 cr.
ENG2010: Engineering Mathematics II with Applications, 5cr.
ENG2011: Engineering Mathematics II with Applications, 5 cr.

Postgraduate Teaching

ENG8001: Mathematical Modelling, 3 cr.
ENG8004: Advanced Partial Differential Equations, 10 cr.
ENG8007: Methods and Techniques of Mathematical Modelling, 10 cr.

Publications