碳氢燃料裂解吸热反应及超临界传热现象数值模型的构建与验证

Abstract

Abstract: A numerical model incorporating an n-decane thermal cracking mechanism at supercritical pressures is developed for studying n-decane supercritical heat transfer with endothermic pyrolysis. The model is employed for numerical investigations of the turbulent convective heat transfer of n-decane at supercritical pressures ranging from 3.45 MPa to 11.38 MPa. Detailed variations are obtained of the fluid temperature, velocity, pyrolytic conversion rate, thermophysical properties, and wall heat flux. The calculated results are compared and validated against the available experimental and computational data, showing excellent agreement. A computational tool is thus established for studying the supercritical heat transfer of hydrocarbon fuels with consideration of endothermic pyrolytic reactions.

Key words: supercritical heat transfer, numerical simulation, hydrocarbon fuel, n-decane, pyrolysis, active regenerative cooling

CLC Number:

V511⁺.1

RUAN Bo, MENG Hua. Numerical Model Development and Validation for Hydrocarbon Fuel Supercritical Heat Transfer with Endothermic Pyrolysis[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2011, 32(12): 2220.

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Numerical Model Development and Validation for Hydrocarbon Fuel Supercritical Heat Transfer with Endothermic Pyrolysis

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