Analogue experiments of volcanic explosion focusing on pressure release processes

在分析火山爆炸时，我们往往假设加压气体的瞬时释放，而忽略了气体的种类。我们的实验室实验表明，即使总释放的能量相同，所产生的现象也取决于气体释放速率和火山气体的热力学性质。我们还观察到智利维拉里卡火山的活动。我们没有捕捉到伴随爆炸的气波，但探测到了稳定的单色次声。利用这一点，我们确定了喷口中空腔的形状。

When analyzing volcanic explosion we often suppose the instantaneous release of pressurized gas and ignore gas species. Our laboratory experiments have revealed that even if total released energy is the same the resultant phenomena differs depending on gas release rate and thermodynamic properties of volcanic gas.We also observed the activity of Villarrica volcano, Chile. We did not catch air wave accompanying explosions but detected stable monochromatic infrasound. Using this we determined the shape of the cavity in the vent.