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Thermal Protection System with Use of Porous Media for a Hypersonic Reentry Vehicle

Volume 2, Issue 1, 1999, pp. 71-85
DOI: 10.1615/JPorMedia.v2.i1.50
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ABSTRACT

The effectiveness of a transpiration-cooled thermal protection system for a hypersonic reentry vehicle consisting of porous material is numerically analyzed with the new concept of coupling of outer free stream and inner flow within the porous matrix. This analysis is more effective in estimation of surface temperature and heat flux to the system compared with previous methods. The transpiration of coolant fluid has great cooling effectiveness as a result of decrease of surface temperature and heat flux, as transpired fluid injected into the outer flow cools the surface as well as creates a moderate temperature gradient near the surface. Increase of back face pressure corresponding to increase of transpiration mass flow causes the lower surface temperature and smaller heat flux. The cooling effectiveness per mass transpiration rate based on decrease of surface temperature is improved by smaller porosity, which shows the superiority of smaller porosity material for practical use.

CITED BY
  1. Misirlioglu Aydin, Baytas A. Cihat, Pop Ioan, Free convection in a wavy cavity filled with a porous medium, International Journal of Heat and Mass Transfer, 48, 9, 2005. Crossref

  2. Zhang Y.X., Wang B.L., Thermal shock resistance analysis of a semi-infinite ceramic foam, International Journal of Engineering Science, 62, 2013. Crossref

  3. Hayashi Kentaro, Aso Shigeru, Tani Yasuhiro, Numerical Study of Thermal Protection System by Opposing Jet, 43rd AIAA Aerospace Sciences Meeting and Exhibit, 2005. Crossref

  4. Hayashi Kentaro, Aso Shigeru, Effect of Pressure Ratio on Aerodynamic Heating Reduction due to Opposing Jet, 36th AIAA Thermophysics Conference, 2003. Crossref

  5. Zhou Di, Du Bingchen, Guo Tongqing, Li Qiaozhong, Lu Zhiliang, Application of a Gas-Kinetic BGK Scheme in Thermal Protection System Analysis for Hypersonic Vehicles, Entropy, 24, 10, 2022. Crossref

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