Investigation on the Flow Instability of Supercritical Hydrocarbon Fuels in Cooling Channels

doi:10.2514/1.T6571

	Investigation on the Flow Instability of Supercritical Hydrocarbon Fuels in Cooling Channels
	Jin YC(靳一超); Wu K(吴坤); Lu Y(陆阳); Fan XJ(范学军)
发表期刊	JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER
	2023
ISSN	0887-8722
摘要	Flow instability in regenerative cooling channels is an important issue for the thermal protection of hypersonic scramjet engines. Taking into account the dynamic process of the heat transfer and flow instability, a one dimensional transient model with several modules (including the cracking reaction, convective heat transfer, and rapid calculation of thermal properties) has been developed to investigate the flow instability characteristics of supercritical hydrocarbon fuels in cooling channels. The calculated results were compared and validated against the available experiments and numerical benchmarks, attaining good agreements. By virtue of the transient simulations, the dynamic flow patterns under different flow rates were studied in a single cooling channel with n decane being the working substance. Then, the influences of the operating pressure and heated length on the in tube flow were further investigated. In addition to the Ledinegg instability, several dynamic instability modes were detected under different external driving forces. It was also observed that under a specific range of pressure drop, the in tube flow could transition from the density wave oscillation to a new steady state. Moreover, this flow excursion was more likely to be triggered when decreasing the operating pressure or channel length.
关键词	Scramjet Engines Regenerative Cooling Supercritical Fluid Hydrocarbon Fuels Flow Instability Fluid Dynamics
DOI	10.2514/1.T6571
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000946424700001
WOS研究方向	Thermodynamics ; Engineering, Mechanical
WOS类目	Thermodynamics ; Engineering
项目资助者	National Key Project [~GJXM92579]
论文分区	Q4
力学所作者排名	1
RpAuthor	Fan, XJ (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China. ; Fan, XJ (corresponding author), Univ Chinese Acad Sci, Inst Mech, Beijing, Peoples R China.
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/91841
专题	高温气体动力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Inst Mech, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Jin YC,Wu K,Lu Y,et al. Investigation on the Flow Instability of Supercritical Hydrocarbon Fuels in Cooling Channels[J]. JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER,2023.
APA	靳一超,吴坤,陆阳,&范学军.(2023).Investigation on the Flow Instability of Supercritical Hydrocarbon Fuels in Cooling Channels.JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER.
MLA	靳一超,et al."Investigation on the Flow Instability of Supercritical Hydrocarbon Fuels in Cooling Channels".JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER (2023).

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