| 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)
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| Source Publication | JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER
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| 2023 | |
| ISSN | 0887-8722 |
| Abstract | 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. |
| Keyword | Scramjet Engines Regenerative Cooling Supercritical Fluid Hydrocarbon Fuels Flow Instability Fluid Dynamics |
| DOI | 10.2514/1.T6571 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000946424700001 |
| WOS Research Area | Thermodynamics ; Engineering, Mechanical |
| WOS Subject | Thermodynamics ; Engineering |
| Funding Organization | National Key Project [~GJXM92579] |
| Classification | Q4 |
| Ranking | 1 |
| Contributor | 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. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/91841 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 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 |
| Recommended Citation 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.Rp_Au: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. |
| 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). |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2023Fa363.pdf（1806KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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