Simulations of measures to control lava flows
Simulations of measures to control lava flows
复制标题
控制熔岩流措施的模拟
DOI：
--
复制
发表时间：
2009
期刊：
影响因子：
--
通讯作者：
S. Umino
中科院分区：
文献类型：
--
作者：
E. Fujita;Masataka Hidaka;A. Goto;S. Umino
我们使用熔岩模拟程序LavaSIM评估了人工屏障、水冷却和引导通道对熔岩流的定量影响。熔岩流基本上受路径周围地形、喷出速率和粘度的影响。为了防止熔岩流造成的破坏，我们进行了控制流动方向、速度和温度的实验。模拟表明，人工障碍物可以成功地改变熔岩流的方向，并且当在地形不是很陡峭的地方与流动方向几乎平行放置时更有效，而垂直于流动方向放置的障碍物只能暂时阻止流量，最终允许凝固的地壳积聚并导致随后的质量越过障碍物。水冷试验在控制方向和温度方面也是有效的，尽管水量多达105 m3。导流渠成功地控制了方向和淹没区域，但仅限于局部区域。
We evaluated the quantitative effects of artificial barriers, water-cooling and guiding channels on lava flow using the lava simulation program LavaSIM. Lava flow is basically subject to the topography around the path, effusive rate and viscosity. To prevent damage due to lava flow, we conducted experiments in controlling the flow direction, velocity and temperature. The simulation demonstrated that artificial barriers can successfully change the direction of a lava flow and is more effective when placed nearly parallel to the flow direction at a point where the topography is not very steep, while a barrier placed perpendicular to the flow direction can only stop the flux temporarily, ultimately allowing the solidified crust to accumulate and causing the following mass to go over the barrier. The water-cooling trial was also effective in controlling the direction and temperature, although the amount of water was as much order as 105 m3. The guiding channels successfully control the direction and inundated area but only in local areas.