Estimation of Temperature-Dependent Thermophysical Properties of Noncharring Ablators

Autor:	H. Molavi, A. Hakkaki-Fard, I. Pourshaban, M. Mahbubi Fard, R. K. Rahmani
Rok vydání:	2009
Předmět:	Fluid Flow and Transfer Processes Mass flux Materials science Mechanical Engineering Aerospace Engineering Thermodynamics Mechanics Inverse problem Condensed Matter Physics Nonlinear system Thermal conductivity Heat flux Space and Planetary Science Thermal Charring Sensitivity (control systems)
Zdroj:	Journal of Thermophysics and Heat Transfer. 23:50-58
ISSN:	1533-6808 0887-8722
Popis:	heat flux and ablative mass flux are unknown a priori and must be determined at each time step. The measured temperatures are simulated numerically by the Charring Material Ablation code that accounts for unsteady ablation. Particular emphasis is placed onthe sensitivity analysis, in which the role of sensor location andnumber of sensors in the estimation of thermal properties can be best appreciated. Considering the nonlinear nature of the proposed inverse problem, it is shown via simulated experiment that unknown parameters can be achieved with reasonable accuracy using this method despite the correlation of the involving parameters and the existing noises in the measurement data.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d48b49faef9c544a052e76b62f6813aa https://doi.org/10.2514/1.38432 Zobrazit plný text záznamu