80 000吨级半潜船机舱通风系统数值模拟

Numerical Simulation of Cabin Ventilation System of an 80 000-ton Semi-submersible Ship

针对机舱通风系统设计不合理会影响机舱内设备正常运行和人员正常工作的问题,以某80000吨级半潜船为研究对象,采用Airpak软件建立了机舱三维模型,对3种风口高度下机舱的温度场和速度场的模拟结果进行分析比较,研究不同风口高度对机舱内设备运行及人员工作的影响。模拟结果表明:风口高度为6.5 m时,机舱内的速度、温度分布都较为合理,机舱内设备可以稳定运行,人员可正常工作无明显不适。

Aiming at the problem that the unreasonable design of the ventilation system of the engine room will affect the normal operation of the equipment and the normal work of the personnel in the engine room, an 80 000-ton semi-submersible ship is taken as the research object, The three-dimensional model of the engine room is established by Airpak software,The simulation results of the temperature field and velocity field of the engine room under three tuyere heights are analyzed and compared, and the influence of different tuyere heights on the operation of equipment and personnel in the engine room is studied. The simulation results show that when the height of the tuyere is 6.5 m, the speed and temperature distribution in the engine room is reasonable, the equipment in the engine room can run stably, and the personnel work normally without obvious discomfort.