...
首页> 外文期刊>Heat and mass transfer >Experimental and numerical investigations of fluid flow and heat transfer in a cryogenic tank at loss of vacuum
【24h】

Experimental and numerical investigations of fluid flow and heat transfer in a cryogenic tank at loss of vacuum

机译:真空损失下低温罐中流体流动和传热的实验和数值研究

获取原文
获取原文并翻译 | 示例
           

摘要

The transient process of thermal stratification in liquid nitrogen (LN_2) induced by lose of vacuum in a multi-layer insulated cryogenic tank is investigated both experimentally and numerically. In the experiments, distribution and evolution of the liquid temperature is obtained using thermocouples. Then, two-dimensional numerical computations are performed, using the two-fluid model together with nucleate boiling model as the closure correlations. Comparison of the numerical results against the experimental data illustrates that the process of thermal stratification forming and weakening, as well as the liquid temperature field are satisfactorily simulated. The computed results of liquid flow field contribute to the understanding of this transient process. It is also demonstrated that the two-phase flow in the tank plays an important role on thermal stratification.
机译:通过实验和数值研究,研究了多层绝缘低温罐中真空损失引起的液氮(LN_2)中热分层的过渡过程。在实验中,使用热电偶可获得液体温度的分布和演变。然后,使用双流体模型和成核沸腾模型作为闭合相关性,进行二维数值计算。数值结果与实验数据的比较表明,令人满意地模拟了热分层形成和减弱的过程以及液体温度场。液体流场的计算结果有助于对该瞬态过程的理解。还证明了罐中的两相流对热分层起重要作用。

著录项

  • 来源
    《Heat and mass transfer》 |2010年第4期|p.395-404|共10页
  • 作者单位

    School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China;

    rnSchool of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China;

    rnSchool of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号