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Numerical investigation on flow and convective heat transfer of aviation kerosene at supercritical conditions
Dang GX(党国鑫); Zhong FQ(仲峰泉); Chen LH(陈立红); Zhang XY(张新宇); Zhong, FQ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
Source PublicationSCIENCE CHINA-TECHNOLOGICAL SCIENCES
2013-02
Volume56Issue:2Pages:416-422
ISSN1674-7321
Abstractavier-Stokes equations were solved using RNG k-epsilon turbulence model with low Reynolds number correction. The thermophysical and transport properties of the China RP-3 kerosene were calculated with a 10-species surrogate and the extended corresponding state method (ECS) combined with Benedict-Webb-Rubin equation. The independence of grids was first studied and the numerical results were then compared with experimental data for validation. Under flow conditions given in the paper, the results show that deterioration of convective heat transfer occurs when the wall temperature is slightly higher than the pseudo-critical temperature of kerosene for cases with wall heat flux of 1.2 and 0.8 MW/m(2). The degree of the heat transfer deterioration is weakened as the heat flux decreases. The deterioration, however, does not happen when the heat flux on the pipe wall is reduced to 0.5 MW/m(2). Based on the analysis of the near-wall turbulent properties, it is found that the heat transfer deterioration and then the enhancement are attributed partly to the change in the turbulent kinetic energy in the vicinity of pipe wall. The conventional heat transfer relations such as Sieder-Tate and Gnielinski formulas can be used for the estimation of kerosene heat convection under subcritical conditions, but they are not capable of predicting the phenomenon of heat transfer deterioration. The modified Bae-Kim formula can describe the heat transfer deterioration. In addition, the frictional drag would increase dramatically when the fuel transforms to the supercritical state.
Subject Area流体力学
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000314913300018
Funding OrganizationNational Natural Science Foundation of China [10921062, 10902115, 11172309]
DepartmentLHD高超声速推进技术
Classification二类/Q2
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46937
Collection高温气体动力学国家重点实验室
Corresponding AuthorZhong, FQ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Dang GX,Zhong FQ,Chen LH,et al. Numerical investigation on flow and convective heat transfer of aviation kerosene at supercritical conditions[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2013,56(2):416-422.
APA Dang GX,Zhong FQ,Chen LH,Zhang XY,&Zhong, FQ .(2013).Numerical investigation on flow and convective heat transfer of aviation kerosene at supercritical conditions.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,56(2),416-422.
MLA Dang GX,et al."Numerical investigation on flow and convective heat transfer of aviation kerosene at supercritical conditions".SCIENCE CHINA-TECHNOLOGICAL SCIENCES 56.2(2013):416-422.
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