RESEARCH INTERESTS

My field of interest is the mathematical modelling of geophysical fluid dynamics with a specific interest in buoyancy driven flows such as internal solitary waves in the stratified ocean and thermal convection in superposed porous-fluid layers. Please find below a list of my publications :

Journal Papers

Internal Solitary Waves

Carr, M., King, S. E. & Dritschel, D. G. 2012 Instability in internal solitary waves with trapped cores. Phys. Fluids. 24, 016601.
Carr, M., King, S. E. & Dritschel, D. G. 2011 Numerical simulation of shear-induced instabilities in internal solitary waves. J. Fluid Mech. 683, 263-288.
Thiem.O, Carr, M., Berntsen, J. & Davies, P. A. 2011 Numerical simulation of internal solitary wave - induced reverse flow and associated vortices in a shallow, two-layer fluid benthic boundary layer. Ocean Dynamics. 61, 857-872.
King, S. E., Carr, M. & Dritschel, D. G. 2011 The steady-state form of large-amplitude internal solitary waves. J. Fluid Mech. 666, 477-505.
Carr, M. Stastna, M. & Davies, P. A. 2010 Internal solitary wave-induced flow over a corrugated bed. Ocean Dynamics. 60, 1007-1025.
Carr, M. & Davies, P. A. 2010 Boundary layer flow beneath an internal solitary wave of elevation. Physics of Fluids. 22, 026601.
Fructus, D., Carr, M., Grue, J., Jensen, A., & Davies, P. A. 2009 Shear induced breaking of large amplitude internal solitary waves. J. Fluid Mech. 620, 1-29.
Carr, M., Fructus, D., Grue, J., Jensen, A., & Davies, P. A. 2008 Convectively induced shear instability in large amplitude internal waves. Physics of Fluids. 20, 126601.
Carr, M., Davies, P. A., & Shivaram, P. 2008 Experimental evidence of internal solitary wave-induced global instability in shallow water benthic boundary layers. Physics of Fluids. 20, 066603.
Dalziel, S. B., Carr, M., Sveen, J. K., & Davies, P. A. 2007 Simultaneous synthetic schlieren and PIV measurements for internal solitary waves. Meas. Sci. Technol. 18, 533-547.
Carr, M. & Davies, P. A. 2006 The motion of an internal solitary wave of depression over a fixed bottom boundary in a shallow, two-layer fluid. Physics of Fluids. 18, 016601.

Convection
Hill, A. A & Carr, M. 2010 Nonlinear stability of the one-domain approach to modelling convection in superposed fluid and porous layers. Proc. R. Soc A. 466, 2695-2705.
Hill, A. A & Carr, M. 2010 Sharp global nonlinear stability for a fluid overlying a highly porous material. Proc. R. Soc A. 466, 127-140.
Hirata, S. C., Goyeau, B., Gobin, D., Carr, M., & Cotta, R. M. 2007 Linear stability of natural convection in superposed fluid and porous layers: influence of the interfacial modelling. Int. J. Heat and Mass Transfer. 50(7), 1356-1367.
Carr, M. 2004 Penetrative convection in a superposed porous-medium-fluid layer via internal heating.  J. Fluid Mech. 509, 305-329.
Carr, M. 2003 Unconditional nonlinear stability for temperature dependent density flow in a porous medium.  Math. Models. Methods. Appl Sci. 13 (2), 207-220.
Carr, M. 2003 A model for convection in the evolution of under-ice melt ponds. Continuum Mech. Thermodyn. 15 (1), 45-54.
Carr, M. & de Putter, S. 2003 Penetrative convection in a horizontally isotropic porous layer.
Continuum Mech. Thermodyn. 15 (1), 33-43.
Carr, M. & Straughan, B. 2003 Penetrative convection in a fluid overlying a porous layer. Advances in water resources. 26, 262-276.
Carr, M. 2003 Covection in fluid and porous media. PhD thesis, University of Durham.

I am a member of the Scottish Oceans Institute in St Andrews, you can see more about my research profile there.

ISW Movies

Please find below movies of internal solitary wave motion;
(i) generated in the laboratory:

ISW of elevation reverse jet in deceleration phase (210509)

ISW of elevation over a corrugated bed - this wave was stable on approach (120908)

Unstable ISW of elevation (260608)

ISW of depression - reverse jet in deceleration phase (25538)

ISW of depression - reverse jet and vortices in deceleration phase (080207)

ISW of depression over a corrugated bed (120106)

Unstable ISW of depression in 3 layer fluid moderate amplitude (130605)

Unstable ISW of depression in 3 layer fluid large amplitude (310505)

Unstable ISW of depression in 2 layer fluid (240406)

Generation - gate effect (170909)

(ii) generated numerically (colour scheme is vorticity):

Unstable ISW of depression in a 3 layer fluid

Unstable ISW of depression in 2 layer fluid in which the trapped core region is modelled as a stagnant core