Numerical estimation of temperature-dependent thermophysical parameters by means of the inverse method - 2D approach

• Autorzy: Zmywaczyk J.
• Języki publikacji: EN

Abstrakty

EN

A modified Newton-Raphson method which has been proposed by Ching-yu Yang [3] to determine the temperature-dependent thermal conductivity and heat capacity from temperature measured at boundaries in a medium (ID case) has now been extended to estimate simultaneously the temperature dependent thermal conductivity k[r](T), k[x](T) and specific heat c[p](T) of an orthotropic material. It has been found that inverse solution of the problem was satisfactory if the degree of polynomials used to estimate the unknown parameters was not greater than three. In addition to this, a D-optimality criterion given by Beck [2] was utilised to determine the finał time of experiment t[f].

Słowa kluczowe

EN

inverse problems; Newton-Raphson method; thermophysical parameters

PL

metoda Newtona-Raphsona; parametry termofizyczne; zagadnienie odwrotne

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2006
• Tom: Vol. 27, no. 2
• Strony: 37--54
• Opis fizyczny: Tab., wz.,Bibliogr. 12 poz.,

Twórcy

autor

Zmywaczyk J.

• Wojskowa Akademia Techniczna, Warszawa,

Bibliografia

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