船舶伙食冷库气流流场的分析研究  

The analytical study of flow field for a ship provision cold storage

作　　者：刘恩海[1] 李海军[1] 周光辉[1] 何媛[2] 赵坤正 欧阳明哲 

机构地区：[1]中原工学院能源与环境学院,郑州450007 [2]西安热工研究院有限公司,西安710054 [3]哈尔滨工业大学土木工程学院,哈尔滨150001

出　　处：《低温与超导》2016年第4期79-84,共6页Cryogenics and Superconductivity

摘　　要：基于浙江某船业16500t货轮伙食冷藏库建立几何模型，以一个2．85m（长）×2．47m（宽）×2．68m（高）的实际肉库为对象，基于Fluent软件的标准k-ε模型对肉库的流场进行数值模拟。模拟结果显示，整个冷库内的流场存在一个中心大回流区，随着冷风机吹风速度的增大，流场主流越贴近壁面流动，同时冷冻库内的速度也表现处均匀和紧凑的特点。基于船舶航行对船舶冷库运行的要求，为了提高货物的玲藏质量、减少能耗，试验研究了1．8～2m／s作为冷风机最佳吹风速度的可行性，研究结果可为改善库内货架结构和优化回流区域分布提供参考。In this paper, a geometry model was established on 16500 tons ship provision cold storage for a shipbuilding com- pany in Zhejiang, a three - dimensional CFD model for a existing freezing room [2.85m（l） ×2.47m（w） × 2.68m（h） ] was proposed to predict airflow distribution in freezing room under different air cooler velocity. The model accounted for turbulence by means of the standard k - ε model with standard wall profiles. It can be concluded that there is a large circum fluence in freezing room. The more velocity is large, the more mainstream is close to wall side. Meanwhile, the results also show that the velocity in cold store is uniformity and compactness. According to the actual ship navigation condition, for less economic cost, the 1.8 ～ 2m/s is adopted for the optimum velocity by the experimentation and simulation. The results reveal that the model of a freezing room was fitted and it was confirmed by the experimental data. The references of the improvement on structure of the foodstuffs shelves and optimization on the distribution of circumfluence region are provided by the results.

关 键 词：船舶 伙食冷藏库 模拟 冷风机 最佳吹风速度 

分 类 号：TB657.1[一般工业技术—制冷工程]