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Stochastic Nature of Wall Nucleation and Its Impact on the Time Average Boundary Condition

机译:壁成核的随机性质及其对时间平均边界条件的影响

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摘要

A new interpretation of the characteristic area and frequency appearing in the wall nucleation source from the point of view of the stochastic nature of this phenomenon is presented in this paper. This analysis shows important drawbacks in the standard interpretation of these terms, such as a strong bias in the characteristic area and high sensitivity to experimental conditions for the frequency. Finally, methods to improve the measurement of the corresponding mean values as well as estimators for their uncertainties based on the definition of a generalized probability density function (PDF) are provided.
机译:从这种现象的随机性的观点出发,提出了对壁成核源中出现的特征区域和频率的新解释。该分析显示了这些术语的标准解释中的重要缺陷,例如特征区域中的强烈偏差以及对频率实验条件的高度敏感性。最后,提供了根据通用概率密度函数(PDF)的定义改进相应平均值的测量方法以及不确定性估计的方法。

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  • 来源
    《Journal of Heat Transfer》 |2015年第2期|021504.1-021504.7|共7页
  • 作者单位

    Departamento de Ingenieria Mecanica y Construccion, Universitat Jaume 1, Castello E12071, Spain;

    School of Nuclear Engineering, Purdue University, West Lafayette, IN 47907,University of Illinois at Urbana-Champaign, Department of Nuclear, Plasma, and Radiological Engineering, Talbot Laboratory, Room 117, 104 South Wright Street, Urbana, IL 61801;

    Departamento de Ingenieria Mecanica y Construccion, Universitat Jaume 1, Castello E12071, Spain;

    School of Nuclear Engineering, Purdue University, West Lafayette, IN 47907;

    School of Nuclear Engineering, Purdue University, West Lafayette, IN 47907;

  • 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

    departure diameter; departure frequency; wall nucleation; forced-convective subcooled boiling;

    机译:出发直径出发频率;壁成核强制对流过冷沸腾;

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