摘要
以恒热流加热方式为研究对象,开展极地环境下海洋装备钢构件对流换热的影响分析,在风速为0 m/s~40 m/s以及温度为-40℃~0℃工况下,结果表明:平板和圆管的对流换热系数与构件表面的风速成正比,温度的影响相对较小,流体方向对构件表面换热系数的影响较为显著。同时,在低温实验室开展了对流换热的模型试验,验证了数值模拟的可靠性。最后,结合数值与试验数据,提出了极地环境下海洋装备钢构件对流换热系数预测模型。
the constant heat flow heating method is taken as the research object, the influence of convective heat transfer on steel components of marine equipment in polar environment was analyzed. The numerical simulation analysis is carried out based on fluent when the wind speed is 0 m/s~40 m/s and the temperature is-40 ℃~0 ℃. The results show that the convective heat transfer coefficients of flat plates and round tubes are proportional to the wind speed at the surface, with a relatively small effect of temperature and a more significant effect of fluid direction on the heat transfer coefficient at the surface. At the same time, the model experiments on convective heat transfer are carried out in the cryogenic laboratory to verify the reliability of the numerical simulations. Finally, based on the simulation and experiment data, the convective heat transfer prediction model for marine equipment components in a polar environment is put forward.
作者
于东玮
吴刚
刘志兵
孔祥逸
韩雪阳
张大勇
YU Dongwei;WU Gang;LIU Zhibing;KONG Xiangyi;HAN Xueyang;ZHANG Dayong(College of Marine Science and Technology,Dalian University of Technology,Panjin 124221,Liaoning,China;Department of Transport Engineering and Mechanics,Dalian University of Technology,Dalian 116023,Liaoning,China;Marine Design and Research Institute of China,Shanghai 200021,China)
出处
《船舶工程》
CSCD
北大核心
2022年第11期154-161,共8页
Ship Engineering
基金
国家自然科学基金(52071055)
工信部高技术船舶科研项目(CBG2N21-2-2)
辽宁省高等学校创新团队(LT2019004)。
关键词
极地
对流换热
试验测试
数值模拟
恒热流
polar region
convective heat transfer
experimental measurement
numerical simulation
constant heat flux
