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所属单位：航空学院

发表刊物：INTERNATIONAL JOURNAL OF THERMOPHYSICS

关键字：Digital holography interferometry Diffusion coefficient Jet fuel Viscosity Water

摘要：The diffusion coefficient of water in jet fuel was measured employing double-exposure digital holographic interferometry to clarify the diffusion process and make the aircraft fuel system safe. The experimental method and apparatus are introduced in detail, and the digital image processing program is coded in MATLAB according to the theory of the Fourier transform. At temperatures ranging from 278.15 K to 333.15 K in intervals of 5 K, the diffusion coefficient of water in RP-3 and RP-5 jet fuels ranges from 2.6967 x 10(-10) m(2).s(-1) to 8.7332 x 10(-10) m(2).s(-1) and from 2.3517 x 10(-10) m(2).s(-1) to 8.0099 x 10(-10) m(2).s(-1), respectively. The relationship between the measured diffusion coefficient and temperature can be well fitted by the Arrhenius law. The diffusion coefficient of water in RP-3 jet fuel is higher than that of water in RP-5 jet fuel at the same temperature. Furthermore, the viscosities of the two jet fuels were measured and found to be expressible in the form of the Arrhenius equation. The relationship among the diffusion coefficient, viscosity and temperature is analyzed according to the classic prediction model, namely the Stokes-Einstein correlation, and this correlation is further revised via experimental data to obtain a more accurate predication result.

ISSN号：0195-928X

是否译文：否

发表时间：2018-04-01

合写作者：Li, Chaoyue,Shao, Lei,Pan, Jun,刘卫华

通讯作者：冯诗愚