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Journal of Aerospace Power. 2016, (02) Core

Study on surrogate model of endothermic hydrocarbon fuel RP-3Chinese Full TextEnglish Full Text (MT)

CHENG Ze-yuan;ZHU Jian-qin;JIN Zhao;National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics,School of Energy and Power Engineering,Beijing University of Aeronautics and Astronautics;

Abstract: Numerical computations of density,viscosity,thermal conductivity and specific heat of five kinds of surrogate models for endothermic hydrocarbon fuel RP-3by extended corresponding state law were conducted.In the computation,the temperature and pressure ranged from 300 Kto 800Kand from 3MPa to 6MPa,respectively.Results indicated that all surrogate models could qualitatively reproduce sharp variation of physical property of RP-3in the vicinity of pseudo-critical temperature;a three-species surrogate model consisting of mole of 53%n-undecane,18%n-butylcyclohexane,29% 1,3,5-trimethyl-benzene performed best among five physical surrogate models in predicting physical property of RP-3.The relative errors of this surrogate model for density were less than 0.08 at the temperature from 300 Kto 700K.Pseudo-critical temperature increased with growing relative molecular mass of surrogate models,showing that there was no obvious relationship between thermal properties under pseudo-critical temperature and relative molecular mass of surrogate models.
Keywords：

aviation kerosene RP-3; surrogate models; extended-corresponding-state law; physical property; pseudo-critical temperature;

  • DOI：

    10.13224/j.cnki.jasp.2016.02.018

  • Series：

  • Subject：

  • Classification Code：

    V31

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