报告题目:Fire Safety in Space – Flammability Experiments on the Cygnus Spacecraft(太空火灾安全 — “天鹅座”飞船上的可燃性实验)
报 告 人:Dr. Grunde Jomaas(丹麦工业大学副教授)
报告时间:2013年2月26日(周二)10:00
报告地点:火灾实验室二楼多媒体会议室
报告人简介:
Grunde Jomaas副教授于2008年获美国普林斯顿大学博士学位,2008-2009年在巴黎中央理工学院从事博士后研究,2009年加入丹麦工业大学任助理教授,现为丹麦工业大学土木工程系副教授。目前主要研究方向包括宇航飞船及空间站火灾安全、层流预混火焰的传播及稳定性等。现任欧洲航天局(ESA)和美国国家航空和宇宙航行局(NASA)“宇航飞船火灾安全”合作研究项目协调人、Fire Technology编委和IAFSS Newsletter编委等职。迄今已在Proceedings of the Combustion Institute、Combustion and Flame、Journal of Fluid Mechanics、Physics of Fluids等学术期刊发表论文近20篇,被SCI引用近300次,并做邀请报告15次。
报告摘要:
Fire testing on an appropriate scale has never been carried out for manned spacecraft due to the complexity, cost and risk associated with operating a long duration fire safety experiment of a relevant size in microgravity. Therefore, there is currently a gap in knowledge of fire behavior in spacecraft. The entire body of low-gravity fire research has either been conducted in short duration ground-based microgravity facilities or has been limited to very small fuel samples. Still, the work conducted to date has shown that fire behavior in low-gravity is very different from that in normal-gravity, with differences observed for flammability limits, ignition delay, flame spread behavior and flame structure. As a result, the prediction of the behavior of fires in reduced gravity is at present not validated.
To address this gap in knowledge, a collaborative international project, Spacecraft Fire Safety (SFS), has been established with its cornerstone being the development of an experimental series to be conducted in the Orbital Cygnus ISS resupply vehicle after it leaves the ISS and before it re-enters the atmosphere. The experiment is being developed by an international topical team that is collaboratively defining the experiment requirements and performing supporting analysis, experimentation and technology development.