Plume Property Above A Fire Source With A Simple Harmonic Oscillation In Horizontal Direction

2015 Fiscal Year Final Research Report

• Project/Area Number: 26560174
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Social systems engineering/Safety system
• Research Institution: Yokohama National University
• Principal Investigator: OKA YASUSHI 横浜国立大学, 環境情報研究科(研究院), 准教授 (10240764)
• Co-Investigator(Kenkyū-buntansha): OKA HIDEYUKI 海上技術安全研究所, 海洋リスク評価系システム安全技術研究グループ, 主任研究員 (80399518)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 船舶火災 / 動揺火源 / 火災プルーム

Outline of Final Research Achievements

Engineering correlations on fire plume are widely utilised to assess a fire safety of onshore buildings and plants. In the offshore environment, however, fire plume properties are considerably different from those in a compartment of onshore building because the fire source location changes with time due to the influence of complex ship motions. As a preliminary step, a series of tests were conducted by controlling a fire source to simulate swaying motion and temperature rise and upward velocity were measured along the centerline of the fire plume.
Temperature and velocity attenuations along the centre of the fictitious rectangular fire source show the property of either asymmetric or line fire source depending on the amplitude of simple harmonic oscillation of a fire source. Temperature field on the vertical plane running along the centre and parallel to the long side of the fictitious rectangular fire source can be predicted by the proposed simplified correlation.

Free Research Field

火災安全工学