2022 Fiscal Year Final Research Report
Simulating wildfire growth
| Project/Area Number |
19K22023
|
|---|
| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
|
| Allocation Type | Multi-year Fund |
|---|
| Review Section |
Medium-sized Section 25:Social systems engineering, safety engineering, disaster prevention engineering, and related fields
|
|---|
| Research Institution | Tokyo University of Science (2021-2022)
Yamagata University (2019-2020) |
|---|
Principal Investigator |
Kuwana Kazunori 東京理科大学, 創域理工学研究科国際火災科学専攻, 教授 (30447429)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
矢崎 成俊 明治大学, 理工学部, 専任教授 (00323874)
|
|---|
| Project Period (FY) |
2019-06-28 – 2023-03-31
|
| Keywords | 森林火災 / 延焼速度 / 移動境界問題 / 火災旋風 |
|---|
| Outline of Final Research Achievements |
The number of wildland fires has been rapidly increasing worldwide, causing serious damage. Fire-spread simulations are a powerful tool for developing effective firefighting strategies against wildland fires. The objective of this study is to establish a numerical model and scheme for fast and efficient fire spread simulation of wildland fires. In addition, this study focused on the scale effects of combustion dynamics that affect the rate of fire spread; laboratory-scale wind-tunnel experiments and larger-scale field experiments are conducted to study their mechanisms. Computational fluid dynamics (CFD) simulations are also performed to investigate changes in the flow field in detail.
|
| Free Research Field |
火災安全工学
|
| Academic Significance and Societal Importance of the Research Achievements |
近年の森林火災の急増は気候変動が主要因の一つとされている．また，森林火災により大量の二酸化炭素が放出されることから，森林火災と温暖化の間に負のスパイラルが存在していると言える．森林火災の被害を最小限に抑えるためには正確な延焼予測に基づいて消火活動を行うことが重要である．本研究で構築した数値モデルは，効率よく延焼シミュレーションを実施することを可能にする．また，延焼速度に大きな影響を及ぼす燃焼ダイナミクスについて研究することにより，延焼シミュレーションの予測精度向上に貢献できる．
|
