Staff Profiles
Dr Ed Llewellin
Contact Dr Ed Llewellin (email at ed.llewellin@durham.ac.uk)
Biography
2007 –2012 Lecturer in Volcanology, Department of Earth Sciences, Durham University
2006 – 2008 NERC Blue Skies Research Fellow: ‘Explosive volcanic eruption processes: from mesoscopic simulations to constitutive laws.’
BP Institute, University of Cambridge and Department of Earth Sciences, University of Durham
2003 – 2006 NERC Research Fellow: ‘Multiphase lattice-Boltzmann approaches to modelling the dynamics of volcanic eruptions.’
BP Institute, University of Cambridge, transferred from Department of Earth Sciences, University of Bristol, 2005.
2002 – 2003 Lecturer, Department of Earth Sciences, University of Bristol.
1998 – 2002 PhD: ‘The rheology of bubbly magmas.’, Department of Earth Sciences, University of Bristol.
Career Research Highlights
My prime research goal is to quantify the physical controls on volcanic eruptive style. In particular, my research focuses on the fundamental role played by magmatic processes and properties at the mesoscopic scale: i.e. at the lengthscale of intra-magmatic bubbles and crystals; and how these processes interact to determine eruptive behaviour at the volcano scale. My ongoing research in this field includes laboratory and numerical investigation of:
- the rheology of bubble- and particle-bearing magma,
- the flow of volcanic gases through permeable magma,
- Dynamics of strombolian eruptions
Committee and Society Service
Peer Review College Member; NERC
PubVolc – volcanology publication database, manager and developer
Conferences and Workshops
Session convenor: ‘Dynamics of volcanic processes’ - International Association of Volcanology and Chemistry of the Earth's Interior General Assembly; 2013
Session convenor: ‘From conduit magma ascent to ash generation and dispersal’ - European Geosciences Union General Assembly; 2013
Conference organiser; VMSG Annual Meeting – Durham 2012.
Session convenor: ‘Volcanic conduits in nature, models, and experiments’ - European Geosciences Union General Assembly; 2012
Session convenor: ‘Magma movement’ - International Association of Volcanology and Chemistry of the Earth's Interior General Assembly; 2008
Invited Talks (selected)
Open University, Centre for Earth, Planetary, Space & Astronomical Research seminar series: “Bubble, burp bang! The physics of Strombolian volcanic eruptions”, February 2012.
University of Geneva, Department of Mineralogy departmental seminar: “Magma in motion: bubbles, crystals and the physics of volcanic eruptions”, October 2011.
INGV Roma: ‘Why build a volcano? The science of Mt Boom’, September 2011.
University of Bristol, School of Earth Sciences seminar series: ‘Bubbles, burps and bangs! Experimental and physical modelling of eruptions at Stromboli volcano, Italy’, March 2011.
ETH, Zurich, Department of Earth Sciences seminar series: ‘Bubbles and crystals in magma’, August 2010.
University of Leeds, School of Earth and Environment seminar series: ‘Bubbles, crystals and the physics of volcanic eruptions’, November 2009.
University of Lancaster, Environmental School seminar series: ‘Development of magma permeability during an eruption’, April 2008.
Prizes and Awards
Journal of Volcanology and Geothermal Research Most Cited Author 2003 - 2007 Award – for Llewellin, E.W. and Manga, M., 2005
Recent and Current Grants
LAVA (the Large Analogue Volcano Apparatus), a new facility for large scale volcanology experiments’ Science Faculty Seedcorn Funding December 2010
‘Fault lubrication during earthquake propagation in thermally unstable rocks.’ NERC Standard Grant Number NE/H021744/1, awarded July 2010 (co-I with de Paola, N., Holdsworth, R.E.)
‘From bubbles to bangs: how meso-scale magmatic processes control the dynamics of volcanic eruptions.’ Science Faculty Contingency Release 2009/10
‘How does crystal-rich magma erupt? Quantifying the rheology of three-phase magma.’ NERC PhD studentship commenced October 2013
‘Bubbles in magma: reconstructing eruption dynamics from volatile concentrations in glass.’ NERC PhD studentship commenced October 2009
‘The importance of crystal exchange and magma mixing in volcanic systems: eruption-triggering mechanisms and timescales’ NERC Standard Grant Number NE/G002401/1, awarded December 2008 (co-I with Davidson, J.P., Jerram, D.A., and Morgan, D)
Selected Publications
Journal papers: academic
- Horwell, C.J., Williamson, B.J., Llewellin, E.W., Damby, D.E. & LeBlond, J.S. (2013). Nature and formation of cristobalite at the Soufrière Hills volcano, Montserrat: implications for the petrology and stability of silicic volcanic domes. Bulletin of Volcanology 75(3): 696.
- Mader, H.M., Llewellin, E.W. & Mueller, S.P. (2013). The rheology of two-phase magmas: A review and analysis. Journal of Volcanology and Geothermal Research 257: 135-158.
- Del Bello, E., Llewellin, E.W., Taddeucci, J., Scarlato, P. & Lane, S.J. (2012). An analytical model for gas overpressure in slug-driven explosions: insights into Strombolian volcanic eruptions. Journal of Geophysical Research 117: B02206.
- James, M.R., Llewellin, E.W. & Lane, S.J. (2011). Comment on "It takes three to tango: 2. Bubble dynamics in basaltic volcanoes and ramifications for modeling normal Strombolian activity" by J. Suckale, B. H. Hager, L. T. Elkins-Tanton, and J.-C. Nave. Journal of Geophysical Research 116: B06207.
- Mueller, S., Llewellin, E.W. & Mader, H.M. (2011). The effect of particle shape on suspension viscosity and implications for magmatic flows. Geophysical Research Letters 38: L13316.
- Llewellin, E.W., Del Bello, E., Taddeucci, J., Scarlato, P. & Lane, S.J. (2011). The thickness of the falling film of liquid around a Taylor bubble. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 468(2140): 1041-1064.
- Williamson, B.J., Di Muro, A., Horwell, C.J., Spieler, O. & Llewellin, E.W. (2010). Injection of vesicular magma into an andesitic dome at the effusive-explosive transition. Earth and Planetary Science Letters 295: 83-90.
- Llewellin, EW (2010). LBflow: An extensible lattice Boltzmann framework for the simulation of geophysical flows. Part I: theory and implementation. Computers & Geosciences 36(2): 115-122.
- Llewellin, EW (2010). LBflow: An extensible lattice Boltzmann framework for the simulation of geophysical flows. Part II: usage and validation. Computers & Geosciences 36(2): 123-132.
- Mueller, S, Llewellin, EW & Mader, HM (2010). The rheology of suspensions of solid particles. Proceedings Of The Royal Society A-mathematical Physical And Engineering Sciences 466(2116): 1201-1228.
- Nabovati, A., Llewellin, E.W. & Sousa, A.C.M. (2010). Through-thickness permeability prediction of three-dimensional multifilament woven fabrics. Composites Part A: Applied Science and Manufacturing 41(4): 453-463.
- Nabovati, A, Llewellin, EW & Sousa, ACM (2009). A general model for the permeability of fibrous porous media based on fluid flow simulations using the lattice Boltzmann method. Composites Part A: Applied Science And Manufacturing 40(6-7): 860-869.
- Witham, F. & Llewellin, E.W. (2006). Stability of Lava Lakes. Journal of Volcanology and Geothermal Research 158(3-4): 321-332.
- Llewellin, E.W. & Manga, M. (2005). Bubble suspension rheology and implications for conduit flow. Journal of Volcanology and Geothermal Research 143(1-3): 205-217.
- Llewellin, E.W., Mader, H.M. & Wilson, S.D.R. (2002). Correction to the constitutive equation and flow dynamics of bubbly lava. Geophysical Research Letters 30: Article No.1340.
- Llewellin, E.W., Mader, H.M. & Wilson, S.D.R. (2002). The constitutive equation and flow dynamics of bubbly magmas. Geophysical Research Letters 29(24): 2170.
- Llewellin, E.W., Mader, H.M. & Wilson, S.D.R. (2002). The rheology of a bubbly liquid. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 458(2020): 987-1016.