Model for the eruption of the Old Faithful geyser, Yellowstone National Park

[摘要] A physical model of the Old Faithfulgeyser successfully replicates the eruption interval for the years 2000–2011. Itis based on convective boiling in the conduit in three stages, and the model isin good agreement with published time-temperature-depth data. The preplay phase,which triggers the main eruption, displays a Rayleighprobability density function with a mode at nine minutes, and it plays anessential role in determining the main eruption interval. It is assumed that temperaturegradients are small due to convection, and individualconvection cells can be assigned a single heat content. Based on previousobservations and drill-hole measurements, the bottom heating and recharge temperaturesare assumed to be 110 °C and 80 °C, respectively, and the total volume of the cylindricalconduit is 23 m3. A prescription for both short and long eruption intervalsis

[学科分类] 地质学

[关键词] Fire safety;fatal fires;smoke alarms