Scientific Principle on Risk Analysis of Gas Explosions
| Project/Area Number |
23241051
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Social systems engineering/Safety system
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| Research Institution | The University of Tokyo |
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Principal Investigator |
DOBASHI Ritsu 東京大学, 工学(系)研究科(研究院), 教授 (30237177)
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| Co-Investigator(Kenkyū-buntansha) |
TERASHIMA Hiroshi 東京大学, 大学院工学系研究科, 准教授 (20415235)
KUWANA Kazunori 山形大学, 大学院理工学研究科, 准教授 (30447429)
MOGI Toshio 東京大学, 大学院工学系研究科, 准教授 (50392668)
越 光男 横浜国立大学, 環境情報研究科(研究院), その他 (20133085)
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| Co-Investigator(Renkei-kenkyūsha) |
KOSHI Mitsuo 横浜国立大学, 大学院環境情報研究院, 非常勤教員 (20133085)
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| Project Period (FY) |
2011-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥47,060,000 (Direct Cost: ¥36,200,000、Indirect Cost: ¥10,860,000)
Fiscal Year 2014: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Fiscal Year 2012: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Fiscal Year 2011: ¥24,180,000 (Direct Cost: ¥18,600,000、Indirect Cost: ¥5,580,000)
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| Keywords | 安全工学 / 燃焼爆発 / 大規模詳細反応機構 / 数値流体計算 / 爆発限界 / 火炎不安定性 |
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| Outline of Final Research Achievements |
Studies were conducted to promote scientific understanding on occurrence probability (explosion limit) and consequence (consequent damages) of gas explosions. About the explosion limit, it was found that the limit and its dependence on conditions can be appropriately predicted by considering adequate reaction scheme. About the consequence analysis, precious evaluation method of Markstein number, which is important to estimate flame front instability, has been newly developed. Also, it was found a large scale flame is propagating in self-similar manner and its flame area is growing in fractal manner. The mechanism of accelerating development of consequent damages can be understood. These results highly contribute to promote scientific predictions of gas explosion risks.
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Report
(5 results)
Research Products
(24 results)
