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- W2377972783 abstract "Numerical simulations on flow and heat transfer characteristics of RP-3aviation kerosene in a horizontal tube at supercritical pressure were carried out.The inner diameter of the tube is 10mm,and the length is 8 000mm.Influence of violent variation of thermo-physical properties in the pseudo-critical region on heat transfer in the horizontal tube was investigated.Numerical method was validated by comparing numerical results with experimental data.The entire heat transfer process was divided into four stages according to the fluid states of near-wall region.Density distribution along perpendicular bisector at different tube cross-sections and secondary flow velocities were used to analyze the evolution characteristics of the secondary flow,so the abnormal mechanism of wall temperature distribution was well explained.The parameter of cross-section relative transverse kinetic energy is introduced to qualitatively describe the intensity of the secondary flow.Effects of mass velocity and heat flux on the secondary flow and wall temperature distributions are discussed.Finally,the applicability of several criteria,used for the buoyancy effect on the convective heat transfer of supercritical aviation kerosene in the horizontal tube is analyzed.The computational results show that the heterogeneous heat transfer mechanism of RP-3aviation kerosene at supercritical pressure in the horizontal tube can be well explained by the variation characteristics of the secondary flow." @default.
- W2377972783 created "2016-06-24" @default.
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- W2377972783 date "2013-01-01" @default.
- W2377972783 modified "2023-09-24" @default.
- W2377972783 title "Numerical study of effect of buoyancy on heat transfer of supercritical aviation kerosene in a horizontal tube" @default.
- W2377972783 hasPublicationYear "2013" @default.
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