Numerical determination of the efficiency of entrainment in volcanic eruption columns

Geophysical Research Letters

Volumn 37, Issue 5, 2010, Pages

  Suzuki, Y J ^a   Koyaguchi, T ^b  

^a JAPAN AGENCY FOR MARINE EARTH SCIENCE AND TECHNOLOGY   (Japan)

^b UNIVERSITY OF TOKYO   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

ENTRAINED AIR; ENTRAINMENT COEFFICIENTS; MEAN VERTICAL VELOCITY; RADIAL VELOCITY; SPATIAL VARIATIONS; THREE-DIMENSIONAL NUMERICAL SIMULATIONS; TURBULENT MIXING; VOLCANIC ERUPTIONS; VORTICAL STRUCTURES;

COMPUTER SIMULATION; VOLCANOES;

AIR ENTRAINMENT;

ENTRAINMENT; JET; NUMERICAL MODEL; PLUME; SPATIAL VARIATION; TURBULENT MIXING; VENTING; VOLCANIC ERUPTION;

EID: 77949279270     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/2009GL042159     Document Type: Article

References (14)

1. Bhat, G. S., and R. Narasimha (1996), A volumetrically heated jet: Large-eddy structure and entrainment characteristics, J. Fluid Mech., 325, 303-330, doi:10.1017/S0022112096008130.
2. Carazzo, G., E. Kaminski, and S. Tait (2008), On the rise of turbulent plumes: Quantitative effects of variable entrainment for submarine hydrothermal vents, terrestrial and extra terrestrial explosive volcanism, J. Geophys. Res., 113, B09201, doi:10.1029/2007JB005458.
3. Dimotakis, P. E. (2000), The mixing transition in turbulent flows, J. Fluid. Mech., 409, 69-98, doi:10.1017/S0022112099007946.
4. Kaminski, E., S. Tait, and G. Carazzo (2005), Turbulent entrainment in jets with arbitrary buoyancy, J. Fluid Mech., 526, 361-376, doi:10.1017/ S0022112004003209.
5. Morton, B. R., G. I. Taylor, and J. S. Turner (1956), Turbulent gravitational convection from maintained and instantaneous sources, Proc. R. Soc. London A, 234(1196), 1-23, doi:10.1098/rspa.1956.0011.
6. Neri, A., and F. Dobran (1994), Influence of eruption parameters on the thermofluid dynamics of collapsing volcanic columns, J. Geophys. Res., 99(B6), 11,833-11,857, doi:10.1029/94JB00471.
7. Papanicolaou, P. N., and E. J. List (1988), Investigations of round vertical turbulent buoyant jets, J. Fluid Mech., 195, 341-391, doi:10.1017/S0022112088002447.
8. Pham, M. V., F. Plourde, and S. D. Kim (2006), Large-eddy simulation of a pure thermal plume under rotating conditions, Phys. Fluids, 18, 015101, doi:10.1063/1.2162186.
9. Plourde, F., M. V. Pham, S. D. Kim, and S. Balachandar (2008), Direct numerical simulations of a rapidly expanding thermal plume: Structure and entrainment interaction, J. Fluid Mech., 604, 99-123, doi:10.1017/ S0022112008001006.
10. Priestley, C. H. B., and F. K. Ball (1955), Continuous convection from an isolated source of heat, Q. J. R. Meteorol. Soc., 81, 144-157, doi:10.1002/qj.49708134803.
11. Suzuki, Y. J., and T. Koyaguchi (2009), A three-dimensional numerical simulation of spreading umbrella clouds, J. Geophys. Res., 114, B03209, doi:10.1029/2007JB005369.
12. Suzuki, Y. J., T. Koyaguchi, M. Ogawa, and I. Hachisu (2005), A numerical study of turbulent mixing in eruption clouds using a three-dimensional fluid dynamics model, J. Geophys. Res., 110, B08201, doi:10.1029/2004JB003460.
13. Wang, H., and A. W.-K. Law (2000), Second-order integral model for a round turbulent buoyant jet, J. Fluid Mech., 459, 397-428, doi:10.1017/ S0022112002008157.
14. Woods, A. W. (1988), The fluid dynamics and thermodynamics of eruption columns, Bull. Volcanol., 50(3), 169-193, doi:10.1007/BF01079681