| Budget Amount *help |
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2019: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2018: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
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| Outline of Final Research Achievements |
Smoking materials such as cigarettes cause a number of fires. When a combustible solid is ignited by a smoldering cigarette, the solid also smolders first. If, then, a smoldering-to-flaming transition (SFT) occurs, the burning rate significantly increases, leading to a severe fire damage. Scientific understanding of the critical condition of SFT is crucial for fire risk assessment. The goal of this study is to develop a mathematical model to predict the critical condition.
Experiments were conducted under various conditions to obtain data of the critical conditions for SFT. A model is then developed based on experimental observations. The model describes the process of steady smoldering spread; the critical condition can be predicted by considering the presence of solution.
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