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LLEWELLYN SMITH, STEFAN

Associate Professor

Degrees:

• B.A., University of Cambridge
• Ph.D., University of Cambridge

Research Interests:

• Fluid mechanics.
• Asymptotic methods.
• Applied and industrial mathematics.

Courses Recently Taught:

• MAE294B: Intro/Applied Mathematics II
• SIO203B: Intro/Applied Mathematics II
• SIO87: Freshman Seminar

Honors and Awards:

• Outstanding Engineering Professor Award, Jacobs School of Engineering, University of California, San Diego, 2004
• First-prize winner, SIAM 100-dollar 100-digit contest, 2002
• Hellman Fellowship, University of California, San Diego, 2001
• Faculty Career Development Program award, University of California, 2001
• Chancellor's Summer Faculty Fellowship Award, University of California, San Diego, 2001
• Queens' College Research Fellowship, 1996-1999
• Lindemann Trust Fellowship for post-doctoral research in the US, 1996-1997
• Munro Studentship (for undergraduate teaching), Queens' College, 1995-1996
• Smith Prize (mathematical essay - only category 1 prize awarded), University of Cambridge, 1995 Natural Environment Research Council (NERC) Studentship at the Department of Applied Mathematics and Theoretical Physics, University of Cambridge, 1993-1996
• Paul McDonald Fye Fellow, Woods Hole Oceanographic Institution, 1992-1993
• College Exhibitioner, Foundation and Bachelor Scholar, Queens' College, 1989-1992

Mentoring:

• Arobone, Eric (Graduate; 2008-)
• Ilie, Marcel (Post Doc; 2008-)
• Matusik, Katarzyna (Graduate; 2008-)
• Oakes, Jessica (Graduate; 2008-)
• Sablong, Thomas-Jeremie (Undergrad; 2007-2007)
• Boivin, Pierre (Undergrad; 2006-2006)
• Morin, Vincent (Post Doc; 2006-2007)
• Augier, Pierre (Undergrad; 2005-2005)
• Michelin, Sébastien (Graduate; 2005-)
• Tang, Wenbo (Post Doc; 2005-2006)
• Urzay, Javier (Graduate; 2005-)
• Conroy, Devin (Graduate; 2004-2007)
• Di Lorenzo, Emanuele (Post Doc; 2003-2003)
• Paci, Alexandre (Other; 2003-2003)
• Petrelis, Francois (Post Doc; 2003-2003)
• Arboun, Océane (Undergrad; 2002-2002)
• Hurlen, Erik (Graduate; 2002-2006)

1. Llewellyn Smith, S. G. 1995. The influence of circulation on the stability of vortices to mode-one disturbances. Proc. R. Soc. Lond. A, 451, 747-755.

2. Llewellyn Smith, S. G. 1997 The motion of a non-isolated vortex on the beta-plane. J. Fluid Mech., 346, 149-179.

3. Pratt, L. J. & Llewellyn Smith, S. G. 1997 Hydraulically-drained flows in rotating basins. Part I: Method. J. Phys. Oceanogr., 27, 2509-2521.

4. Balmforth, N. J., Llewellyn Smith, S. G. & Young, W. R. 1998 Dynamics of interfaces and layers in a stratified turbulent fluid. J. Fluid Mech., 355, 329-358.

5. Balmforth, N. J., Llewellyn Smith, S. G. & Young, W. R. 1998 Enhanced dispersion of near-inertial waves in an idealized geostrophic flow. J. Mar. Res., 56, 1-40.

6. Llewellyn Smith, S. G. & Gille, S. T. 1998 Probability density functions of large-scale turbulence in the ocean. Phys. Rev. Lett., 81, 5249-5252.

7. Llewellyn Smith, S. G. 1999 Near-inertial oscillations of a barotropic vortex: trapped modes and time evolution. J. Phys. Oceanogr., 29, 747-761.

8. Llewellyn Smith, S. G. & Craster, R. V. 1999 Numerical and asymptotic approaches to scattering problems involving finite elastic plates in structural acoustics. Wave Motion, 30, 17-41.

9. Ford, R. & Llewellyn Smith, S. G. 1999 Scattering of acoustic waves by a vortex. J. Fluid Mech., 386, 305-328.

10. Carnevale, G. F., Llewellyn Smith, S. G., Crisciani, R., Purini, R. & Serravall, R. 1999 Bifurcation of a coastal current at an escarpment. J. Phys. Oceanogr., 29, 969-985.

11. Craster, R. V. & Llewellyn Smith, S. G. 1999 A class of expansion functions for finite scattering problems in structural acoustics. J. Acoust. Soc. Am., 106, 3128-3134.

12. Gille, S. T. & Llewellyn Smith, S. G. 2000 Velocity probability density functions from altimetry. J. Phys. Oceanogr., 30, 125-136.

13. Llewellyn Smith, S. G. 2000 The asymptotic behaviour of Ramanujan's integral and its application to two-dimensional diffusion-like equations. Eur. J. Appl. Math., 11, 13-28.

14. Llewellyn Smith, S. G. 2000 Energy and pseudomomentum of propagating disturbances on the beta-plane. Dyn. Atmos. Oceans, 32, 135-151.

15. Balmforth, N. J., Llewellyn Smith, S. G. & Young, W. R. 2001 Disturbing vortices. J. Fluid Mech., 426, 95-133.

16. Moehlis, J. & Llewellyn Smith, S. G. 2001 Radiation of mixed layer near-inertial oscillations. J. Phys. Oceanogr., 31, 1550-1560.

17. Llewellyn Smith, S. G. & Ford, R. 2001 Three-dimensional acoustic scattering by vortical flows. Part I: General theory. Phys. Fluids, 13, 2876-2889.

18. Llewellyn Smith, S. G. & Ford, R. 2001 Three-dimensional acoustic scattering by vortical flows. Part II: Axisymmetric scattering by Hill's spherical vortex. Phys. Fluids, 13, 2890-3000.

19. Klein, P. & Llewellyn Smith, S. G. 2001 Horizontal dispersion of near-inertial oscillations in a turbulent mesoscale eddy field. J. Mar. Res., 59, 697-723.

20. Llewellyn Smith, S. G. 2002 Scattering of acoustic waves by a superfluid vortex. J. Phys. A, 35, 3597-3607.

21. Llewellyn Smith, S. G. & Young, W. R. 2002 Conversion of the barotropic tide. J. Phys. Oceanogr., 32, 1554-1566.

22. Hattori, Y. & Llewellyn Smith, S. G. 2002 Axisymmetric acoustic scattering by vortices. J. Fluid Mech., 473, 275-294.

23. Gille, S. T., Llewellyn Smith, S. G. & Lee, S. M. 2003 Measuring the sea breeze from QuikSCAT scatterometry. Geophys. Res. Lett., 30, 1114, 10.1029/2002GL016230.

24. Llewellyn Smith, S. G. & Young, W. R. 2003 Tidal conversion at a very steep ridge. J. Fluid Mech., 495, 175-191.

25. Llewellyn Smith, S. G. & Tobias, S. M. 2004 Vortex dynamos. J. Fluid Mech., 498, 1-21.

26. Llewellyn Smith, S. G. 2004 Stratified rotating edge waves. J. Fluid Mech., 498, 161-170.

27. Klein, P., Llewellyn Smith, S. G. & Lapeyre, G. 2004 Organization of inertial energy by an eddy field. Q. J. Roy. Meteorol. Soc., 130, 1153-1166.

28. Gille, S. T., Llewellyn Smith, S. G. & Statom, N. M. 2005 Global observations of land breeze diurnal variability. Geophys. Res. Lett., 32, L05605, doi:10.1029/2004GL022139.

29. Conroy, D. T., Llewellyn Smith, S. G. & Caulfield, C. P. 2005 Evolution of a chemically reacting plume in a ventilated room. J. Fluid Mech., 537, 221-253.

30. Petrelis, F., Llewellyn Smith, S. G. & Young, W. R. 2006 Tidal conversion at a submarine ridge. J. Phys. Oceanogr., 36, 1053-1071, doi:10.1175/JPO2879.1.

31. Di Lorenzo, E., Llewellyn Smith, S. G. & Young, W. R. 2006 Numerical and analytical estimates of M2 tidal conversion at steep oceanic ridges. J. Phys. Oceanogr., 36, 1072-1084, doi:10.1175/JPO2880.1.

32. Adda-Bedia, M. & Llewellyn Smith, S. G. 2006 Supersonic and subsonic states of dynamic contact between elastic bodies. Proc. R. Soc. Lond. A., 462, 2781-2795, doi:10.1098/rspa.2006.1709.

33. Davis, A. M. J. & Llewellyn Smith, S. G. 2007 Perturbation of eigenvalues due to gaps in 2-D boundaries. Proc. R. Soc. Lond. A., 463, 759-786, doi:10.1098/rspa.2006.1796.

34. Urzay, J., Llewellyn Smith, S. G. & Glover, B. J. 2007 The elastohydrodynamic force on a sphere near a soft wall. Phys. Fluids., 19, 103106.

35. Adamou, A. T. I., Craster, R. V. & Llewellyn Smith, S. G. 2007 Trapped edge waves in stratified rotating fluids: Numerical and asymptotic results. J. Fluid Mech., 592, 195-220.

36. Abrahams, I. D, Davis, A. M. J. & Llewellyn Smith, S. G. 2008 Matrix Wiener-Hopf approximation for a partially clamped plate. Q. J. Mech. Appl. Math., doi: 10.1093/qjmam/hbn004.

37. Abrahams, I. D, Davis, A. M. J. & Llewellyn Smith, S. G. 2008 Asymmetric channel divider in Stokes flow. SIAM J. Appl. Math., 68, 1439-1463.

38. Llewellyn Smith, S. G., Michelin, S. & Crowdy, D. G. 2008 The dipolar field of rotating bodies in two dimensions. J. Fluid Mech., 607, 109-118.

39. Conroy, D. T. & Llewellyn Smith, S. G. 2008 Endothermic and exothermic chemically-reacting plumes. J. Fluid Mech., 612, 291-310.

40. Michelin, S., Llewellyn Smith, S. G. & Glover, B. J. 2008 Vortex shedding model of a flapping flag. J. Fluid Mech., 617, 1-10.

41. Llewellyn Smith, S. G. & Davis, A. M. J. 2009 Time-dependence of groundwater pumping from a well near a river. Proc. R. Soc. Lond. A., 465, 175-192.