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Effect of thermal transport on solidification of salt and freshwater water droplets on marine surfaces

机译：热运输对海面盐和淡水水滴凝固的影响

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摘要

Sea spray icing poses a hazard for marine vessels in cold climates. This experimental study considers fresh and saltwater droplets in the inviscid, impact-driven regime solidifying on a variety of marine surfaces, coated and uncoated, under arctic conditions. A first order thermal resistance model is developed which includes the resistance within the post-impact drop and the transient spreading resistance within the substrates and coatings. An expression for dimensionless time-to-freeze based on thermal resistance is developed which shows good agreement across a wide range of dimensionless time. Notably, when the coating is a poor thermal conductor as is typical of marine coatings, the transient spreading resistance within the surface and coating significantly influences the post-impact spread radius and time-to-freeze. This study provides expressions to quantify the effects of substrate and coating thermophysical properties on the solidification process.
机译：海浪锦鲤对寒冷气候的海洋船带来了危险。该实验研究将新鲜和咸水液滴考虑在北极条件下的各种海面，涂覆和未涂覆的各种海面上凝固的新鲜和咸水液滴。开发了一阶热电阻模型，其包括在后冲击后下降和基板和涂层内的瞬态扩散阻力。基于热阻的无量纲时间冻结的表达式开发出来，横跨多维无管时间介绍了良好的一致性。值得注意的是，当涂层是诸如典型的船舶涂层的差，表面和涂层内的瞬态扩散性显着影响冲击后扩散半径和冻结的时间。本研究提供了量化基材对凝固过程中的涂层热物理性质的表达。

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  • 来源
    《International Journal of Heat and Mass Transfer》 |2020年第6期|119452.1-119452.11|共11页
  • 作者

    Lisa Steigerwalt Lam; Kaniz R. Sultana; Kevin Pope; Y.S. Muzychka;

  • 作者单位

    Department of Mechanical Engineering Memorial University of Newfoundland St Johns NL Canada;

    Department of Mechanical Engineering Memorial University of Newfoundland St Johns NL Canada;

    Department of Mechanical Engineering Memorial University of Newfoundland St Johns NL Canada;

    Department of Mechanical Engineering Memorial University of Newfoundland St Johns NL Canada;

  • 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

  • 入库时间 2022-08-18 22:24:00

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