Imperial College London


Faculty of Natural SciencesDepartment of Mathematics

Senior Lecturer



+44 (0)20 7594 8514a.walton Website




743Huxley BuildingSouth Kensington Campus





Andrew Walton is a Senior Lecturer in Applied Mathematics in the Mathematics Department of Imperial College. His research interests are in the area of fluid dynamics, particularly hydrodynamic stability theory and transition to turbulence. His published papers include investigations into wave-vortex interactions in boundary-layer transition, separation of flows over surface roughnesses and the flow around buildings. Recently he has been investigating transition in a circular pipe, using a combination of analytical, asymptotic and numerical techniques, and a related problem of axial flow in an annular region. The latter problem has applications in the oil and pharmaceutical industries.

Andrew Walton's personal web space can be found at

Selected Publications

Journal Articles

Wong AWH, Walton AG, 2012, Axisymmetric travelling waves in annular couette-poiseuille flow, Quarterly Journal of Mechanics and Applied Mathematics, Vol:65, ISSN:0033-5614, Pages:293-311

Walton AG, 2011, The stability of developing pipe flow at high Reynolds number and the existence of nonlinear neutral centre modes, Journal of Fluid Mechanics, Vol:684, ISSN:0022-1120, Pages:284-315

Deguchi K, Hall P, Walton A, 2013, The emergence of localized vortex-wave interaction states in plane Couette flow, Journal of Fluid Mechanics, Vol:721, ISSN:0022-1120, Pages:58-85

Deguchi K, Walton AG, 2013, Axisymmetric travelling waves in annular sliding Couette flow at finite and asymptotically large Reynolds number, Journal of Fluid Mechanics, Vol:720, ISSN:0022-1120, Pages:582-617

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