Shock wave propagation due to explosive-type volcano eruptions are numerically simulated in order to produce hazard maps. Different types of damages caused by pyroclastic-surge and ballistic fragments as well as positive and negative pressure loading are related to the maximum overpressure of the blast waves. Hazard maps produced by the present method is useful for establishing better safety countermeasures for volcanic eruptions. Simulations of blast wave propagation take the complex terrain of the interested area into account. Several eruption models for the energy release such as the reservoir-break model and the jet models are considered and discussed. The three-dimensional numerical code employs the finite volume method with WAF scheme for evaluating the numerical fluxes at the cell interface. The WAF scheme is one of the high-order Godunov schemes and HLLC approximate Riemann solution is used in the present work.
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ASME 2002 Pressure Vessels and Piping Conference
August 5–9, 2002
Vancouver, BC, Canada
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4659-8
PROCEEDINGS PAPER
CFD Application to Construction of Hazard Maps of Volcanic Eruptions
T. Saito,
T. Saito
Tohoku University, Sendai, Miyagi, Japan
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H. Yamashita,
H. Yamashita
Tohoku University, Sendai, Miyagi, Japan
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K. Takayama
K. Takayama
Tohoku University, Sendai, Miyagi, Japan
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T. Saito
Tohoku University, Sendai, Miyagi, Japan
H. Yamashita
Tohoku University, Sendai, Miyagi, Japan
K. Takayama
Tohoku University, Sendai, Miyagi, Japan
Paper No:
PVP2002-1599, pp. 277-282; 6 pages
Published Online:
August 14, 2008
Citation
Saito, T, Yamashita, H, & Takayama, K. "CFD Application to Construction of Hazard Maps of Volcanic Eruptions." Proceedings of the ASME 2002 Pressure Vessels and Piping Conference. Computational Technologies for Fluid/Thermal/Structural/Chemical Systems With Industrial Applications, Volume 2. Vancouver, BC, Canada. August 5–9, 2002. pp. 277-282. ASME. https://doi.org/10.1115/PVP2002-1599
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