The Parameters Identification Method of Radiation Heat Transfer for Nanoporous Materials

Article Preview

Abstract:

The two flux approximation model is usually used to calculate the heat transfer of radiation for porous materials. In this paper, the parameters identification method of the extinction coefficient and the albedo of scattering in the two flux model is set up by using the identification theory according to the data of the back temperature. The simulated process shows that the convergence rate is fast and the results by the parameters identification are very close to the origin values.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 631-632)

Pages:

341-347

Citation:

Online since:

January 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Kamran Dergabeigs. Thermal Analysis and Design of Multi-Layer Insulation for Re-Entry Aerodynamic Heating. AIAA 2001-2834.

DOI: 10.2514/6.2001-2834

Google Scholar

[2] Kamvan Darjabcig. Heat Transfer in High Temperature Fibrous Insulation. AIAA 2002-3332.

Google Scholar

[3] J. Marschall etc. Internal Radiation Transport and Effective Thermal Consluctivily of Fibrous Ceramic Insulation. AIAA 2001-2822.

Google Scholar

[4] Petrov V.A. Combined Radiation and Conduction Heat Transfer in High Temperature Fiber Thermal Insulation. International Journal of Heat and Mass Transfer, Vol. 40, No. 9, 1997: 2241-2247.

DOI: 10.1016/s0017-9310(96)00242-6

Google Scholar

[5] Imakoma,H., Sang,K. and Okazard,U. The Effective Thermal Conductivity of Fibrous Insulation, International Chemical Engineering. Vol. 36, 1990: 738-746.

Google Scholar

[6] Jiang Guiqing, Yu Jijun. Insulation Mechanism of Spacecraft with Long Time Aero-Heating. Vol. 36, No. 1 2006: Aerospace materials & Technology.

Google Scholar

[7] Jiang Guiqing, Ma Shuya. Thermal protection property prediction for coatings. vol. 22, No. 1: 24-28, 2004, ACTA AERODYNAMICA SINICA.

Google Scholar

[8] Jiang Guiqing, Li Zhongping, Yu Jijun. The Parameter identification of viscosity coefficient for SiO2 matrix composites. Vol. 26, No. 4. Dec., 2008. ACTA AERODYNAMICA SINICA.

Google Scholar

[9] Kamvan Darjabcig. Thermal Analysis and Design Optimization of Multilayer Insulation for Reentry Aerodynamic Heating, Journal of Spacecraft and Rockets, Vol. 39, No. 4, July-August 2002: 509-514.

DOI: 10.2514/2.3863

Google Scholar

[10] Williams, S.D., and Curry, D.M., Predictions of Rigid Silica Based Insulation Conductivity, NASA TP-3276, Jan, (1993).

Google Scholar

[11] Verschoor, J.D., Greebler, P., and Manville, N.J., Heat transfer by Gas Conduction and Radiation in Fibrous Insulation. Journal of Heat Transfer, Vol. 74, No. 8, 1952: 961-968.

DOI: 10.1115/1.4015982

Google Scholar