Home Journals Articles Updates About
CN
image
收藏切换
Experimental and Numerical Study on Phase Change Transpiration Cooling for a Wedge-shaped Nose Cone with a Gradient Porosity Layout
收藏切换
PDF
Yifei LIU1, Luguang LIU2, Yibin DOU2, Taolue LIU1, Fei HE1
Missiles and Space Vehicles | 2024, 47(5) : 81 - 91
Less
收藏切换
Missiles and Space Vehicles | 2024, 47(5): 81-91
• Environment and Test •
Experimental and Numerical Study on Phase Change Transpiration Cooling for a Wedge-shaped Nose Cone with a Gradient Porosity Layout
Full
Yifei LIU1, Luguang LIU2, Yibin DOU2, Taolue LIU1, Fei HE1
Affiliations
  • 1 University of Science and Technology of China,Hefei,230026
  • 2 Shanghai Electro-mechanical Engineering Institute,Shanghai,201109
Published: 2024-10-25 doi: 10.7654/j.issn.2097-1974.20240512
Outline
收藏切换

In order to improve the transpiration cooling efficiency at the stagnation point of the nose cone of the near space vehicle, a wedge-shaped porous nose cone with a gradient porosity layout is proposed and the phase change transpiration cooling is experimentally and numerically investigated under different coolant injection ratio. The experimental results indicate that the gradient porosity layout can effectively improve the cooling efficiency at the stagnation point and the overall temperature uniformity of the porous surface. When the coolant injection ratio $M$ is 0.125%, the cooling efficiency at the stagnation point is increased by 52.4%, and the overall cooling efficiency is increased by 31.7%. The numerical results indicate that the gradient porosity layout increases the coolant mass flux at the leading edge and optimizes coolant distribution by moving the maximum pressure value at the stagnation point downstream. When the coolant injection ratio $M ={0.15}\%$, the coolant mass flux at the stagnation point is increased 76%. In addition, the film formed by the coolant flows out of the porous structure is more uniform.

active thermal protection  /  transpiration cooling  /  porous media  /  liquid-gas phase change  /  thermal protection
Yifei LIU, Luguang LIU, Yibin DOU, Taolue LIU, Fei HE. Experimental and Numerical Study on Phase Change Transpiration Cooling for a Wedge-shaped Nose Cone with a Gradient Porosity Layout[J]. Missiles and Space Vehicles, 2024 , 47 (5) : 81 -91 . DOI: 10.7654/j.issn.2097-1974.20240512
Appendix
Less
Year 2024 volume 47 Issue 5
PDF
347
151
Cite this Article
BibTeX
Article Info
doi: 10.7654/j.issn.2097-1974.20240512
  • Receive Date：2024-02-22
  • Online Date：2025-07-04
  • Published：2024-10-25
Article Data
Affiliations
History
  • Received：2024-02-22
  • Revised：2024-04-24
Funding
Affiliations
    1 University of Science and Technology of China,Hefei,230026
    2 Shanghai Electro-mechanical Engineering Institute,Shanghai,201109
References
Share
https://castjournals.cast.org.cn/joweb/ddyht/EN/10.7654/j.issn.2097-1974.20240512
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House