三次元地形と流動幅の影響を考慮した煙型雪崩の流動モデルの開発

概要

論文の詳細を見る
Large part of countries in Japan is mountains area. Many villages and large structures have the potential of damage by powder snow avalanche. In order to prevent these disasters, the understandings on characteristic of powder snow avalanche are necessary. A hazard map can be made based on such knowledge. Also, the constructions of facilities preventing these disasters are possible. The flow mechanisms of powder snow avalanches are similar to the thermal flow on the inclined boundaries. The models and the numerical simulator on such flows are developed considering the three dimensional topography. These models were originally proposed by one of the authors (Fukushima, 1986). The present simulation model can use the digital map and analyze the route and the lateral spreads of powder snow avalanches in addition to the travel speed, the concentration of particles, the kinetic energy of turbulence.
長岡技術科学大学の論文
2003-02-13