为研究工程船机舱在多海域作业下的热环境，本文结合CFD（Computational Fluid Dynamics）方法与数值传热学对工程船舶机舱的通风系统进行数值仿真。分别选取热带海域与正常海域下，工程船作业时机舱内典型截面的温度场进行分析研究，仿真结果表明：通风系统在正常航行时效果良好，机舱工作区域温度正常；在热带海域作业时，冷风机开启后的机舱区域仍有过热风险，需通过优化甲板栅格开口、机舱通风管道风口尺寸等手段改善整体气流组织；主要热源附近增设冷风机，可引导热量走向改善机组工作环境；低流通效率的空间设置轴流风机可调整气流组织，避免流通死角。优化后的机舱通风方案整体温度降低约2.5℃，符合正常作业需求。
In order to study the thermal environment of engineering ship engine room under multi-sea operation, the Computational fluid dynamics (CFD) method and numerical heat transfer method are combined to simulate the ventilation system of the engine room of an engineering ship in this paper. The typical section of temperature field in the engine room of engineering ship were respectively selected for analysis and research during operation in tropical sea area and normal sea area. The simulation results show that the ventilation system has good effect during normal navigation, and the temperature in the working area of the engine room is normal. When operating in tropical waters, there is still a risk of overheating in the engine room area after the chiller is opened. Therefore, the overall air flow organization should be improved by optimizing the deck grid openings and the size of the engine room ventilation ducts. Adding a cold fan near the main heat source can guide the heat to improve the working environment of the unit. The axial fan in the space with low flow efficiency can adjust the airflow organization to avoid dead flow angles. The overall temperature of the optimized cabin ventilation scheme is reduced by about 2.5℃, which meets the requirements of normal operation.
2025,47(9): 72-77 收稿日期：2024-7-21
DOI：10.3404/j.issn.1672-7649.2025.09.013
分类号：U664
作者简介：杨凯博（1999-），男，硕士，助理工程师，研究方向为船舶动力装置、海洋可再生能源
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