易倍体育官网

易倍体育官网:易倍体育官网-研究生刘薇、教师王亮、苏石川的研究成果“Study of the Flame Flow and Combustion Characteristics of Pool Fires around a Bluff Body in the Ship Engine Room”在《Case Studies in Thermal Engineering》上发表

发布时间:2021-12-15动态浏览次数:152

近期,易倍体育官网-研究生刘薇、教师王亮、苏石川的研究成果Study of the Flame Flow and Combustion Characteristics of Pool Fires around a Bluff Body in the Ship Engine Room”在《Case Studies in Thermal Engineering》上发表

 

论文简介如下:

In the development of a fire, all kinds of equipment in ship cabins cause flames to flow around them, which greatly affects the combustion characteristics of the flames. Experimental studies were conducted on a pool of 80 cm ×6 cm ×5 cm containing a bluff body with a diameter of 2 cm and a height of 15 cm. Using diesel fuel as an ignition source, the flame flow around the bluff body propagating as a crosswind at speeds of 0.8–2.4 m/s was studied. The results showed that the fluctuation of the mass loss in a rising period decreased. A new flame spreading phenomenon of “continuous-flow around-broken-retract” appeared. The average spreading rate affected by the bluff body had a quadratic nonlinear relationship with the intensity of airflow. A prediction model of the flame drag length for the rectangular pool containing a bluff body was established. In addition, there were two vortices near a bluff body that were symmetrical and flowed in opposite directions. The temperature at the standing vortices reached a maximum of approximately 260 ?C. At the same time, the vortices presented the characteristics of periodic formation and shedding with an interval of approximately 3.6 s.  

 

全文下载:https://doi.org/10.1016/j.csite.2021.101514


易倍体育官网(中国)集团有限公司