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首页> 外文期刊>International Journal of Heat and Mass Transfer >Experimental investigation on heat transfer correlations of n-decane under supercritical pressure
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Experimental investigation on heat transfer correlations of n-decane under supercritical pressure

机译：超临界压力下正癸烷传热相关性的实验研究

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摘要

A series of electrically heated tube experiments was conducted to investigate the heat transfer correlations of n-decane under conditions similar to a regeneratively cooled scramjet. The fuel was heated in a 1.5 mm inner diameter tube of 1Cr18Ni9Ti and the fuel pressure was varied from 4.0 to 4.3 MPa in the experiments. The Reynolds number ranged from about 800 to 70,000. The heat transfer correlations of n-decane in laminar, transition and turbulent flow regions were determined by using the method of least squares curve fitting. The calculated outer wall temperatures were compared with data in present and another electrically heated tube experiments, a fuel-cooled panel test, and a regeneratively cooled scramjet combustor test. The results of comparisons validated the applicability of the presented correlations.
机译：进行了一系列电加热管实验，以研究与再生冷却超燃冲压发动机相似的条件下正癸烷的传热相关性。在实验中，将燃料在直径为1.5 mm的1Cr18Ni9Ti管中加热，并且燃料压力在4.0 MPa至4.3 MPa之间变化。雷诺数约为800至70,000。采用最小二乘曲线拟合法确定层流，过渡和湍流区域中正癸烷的传热相关性。将计算出的外壁温度与当前数据和另一个电加热管实验，燃料冷却板试验以及蓄冷式超燃冲压燃烧器试验的数据进行比较。比较结果验证了所提出的相关性的适用性。

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  • 来源
  • 作者

    L. Zhang; R.L. Zhang; S.D. Xiao; J. Jiang; J.L. Le;

  • 作者单位

    School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China;

    Airbreathing Hypersonic Technology Research Center ofCARDC, Mianyang, Sichuan 621000, China;

    School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China;

    Airbreathing Hypersonic Technology Research Center ofCARDC, Mianyang, Sichuan 621000, China;

    Airbreathing Hypersonic Technology Research Center ofCARDC, Mianyang, Sichuan 621000, 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

    Heat transfer correlation; Supercritical pressure; n-Decane; Laminar; Transition; Turbulent;

    机译：传热相关超临界压力;正癸烷;层;过渡;湍流;

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