摘要
针对舰船舱室空调系统的末端形式不同于民用建筑空调系统末端形式的特点,提出对采用布风器方式的舰船舱室的气流组织形式进行研究。采用计算流体动力学（CFD）技术,建立实船典型两人舱室的数值试验模型,根据舰船的实际边界条件对该舱室夏季设计工况和冬季设计工况下的气流组织进行数值模拟计算,并对典型截面的速度场及温度场进行分析。模拟结果表明：在夏季设计工况下,虽然布风器周围风速较高、温度较低,但舱内人员活动区域速度场分布较均匀,舱内风速小于0.3 m/s,温度场分布也较为均匀,温度约为26~27℃;在冬季设计工况下,除布风器周围风速较高、温度较高外,舱室大部分区域风速较低,小于0.2 m/s,温度约为20℃。无论是夏季还是冬季设计工况,采用布风器末端形式的典型两人舱室人员活动区域内的气流速度及温度均满足舒适性标准要求,结果验证了该典型舱室空调系统布置的合理性。
This paper presents a study of the air distribution of a typical two-person ship cabin with air dis-tributors being the air terminal due to the fact that the air terminal forms used in ship cabins are very differ-ent from those used in air-conditioning systems in civil buildings. The fluid-domain model of the typicaltwo-person ship cabin is developed by using CFD technology, and the air distribution under the summer de-sign condition and the winter design condition are both simulated by imposing the coincident boundary con-ditions of the real ship, and the velocity and temperature fields of typical sections of the ship cabin are ana-lyzed. The simulation results show that under the summer design condition, the velocities and temperaturesclose to the air distributor are relatively high and low, respectively, while in the occupation area, the veloci-ty distribution is basically uniform, and the values are less than 0.3 m/s. The temperature distribution is al-so basically uniform, and the temperatures are about 26~27 ℃. Under the winter design condition, the airvelocities in most areas are relatively low（less than 0.2 m/s）, and the temperatures are approximately 20 ℃,except for that the velocity and temperature are relatively high around the air distributor. In brief, the pre-sented conditions successfully meet the comfort requirements under both the summer design condition andthe winter design condition. The result further demonstrates the reasonability of the air-conditioning sys-tem designed for typical ship cabins.
出处
《中国舰船研究》
CSCD
北大核心
2015年第6期107-113,共7页
Chinese Journal of Ship Research
基金
国家部委基金资助项目
