1、江蘇科技大學(xué)碩士學(xué)位論文某散貨船機艙火災(zāi)特性研究姓名：王樂申請學(xué)位級別：碩士專業(yè)：輪機工程指導(dǎo)教師：蘇石川2011-03-13ABSTRACT III ABSTRACT Ship fire is a kind of fire. It is a common shipwreck with high risk. On the one hand, it is difficult for people on the ship to save

2、themselves, and the manpower and equipments on board are limited. On the other hand, because of the complex internal structure of the cabin, hard-to-reach fire fighting equipment and little room for maneuvering, the fire

3、 rescue scope is badly affected and the rescue conditions are horrible. Bulk ship accounts for a large share of the manufacturing sector in China, so the research for cabin fire of bulk ship is extremely important and me

4、aningful in helping people understand cabin fire better, especially in fire prevention and fire elimination. The model of bulk cabin is established based on the FDS platform, and used the method of large eddy simulation

5、to the computer simulation for occurrence and development of cabin fire. It has given the following researches in cabin fire of bulk ship: (1)It has given the math model of cabin fire burning, explained the basic idea o

6、f large eddy simulation, and provided theoretical basis for cabin fire simulation research; (2)It has set up the physical model for cabin fire of bulk ship, analyzed the cause of the fire, set the fire point and the boun

7、dary condition of the cabin fire, and researched other aspects of parallel computing in the software; (3)Through the computer simulation of cabin fire, it has gotten the variation rule of the smoke movement and flame spr

8、ead at different times and different heights, and the distribution of the cabin temperature, the soot and CO concentration, which directly reflects the occurrence and development process of cabin fire in bulk ship, and i

9、s relatively more intuitive and practical compared to traditional research; (4) It has put up simulation studies for the ceiling jet smoke and entrainment motion phenomena of cabin fire in bulk ship, and analyzed these p

10、henomena’s effects to the smoke movement in the fire; (5) It has treated the multi-layer geometry structure ship cabin, no ventilation pipe geometry structure ship cabin and monolayer geometry structure ship cabin as the

11、 research objects, to analyze the characteristics of fire in multi-layer structure through the comparison research on the flow field, oxygen concentration, the flame propagation speed and net heat flux among the above th