Identification of latent heat of biological tissue subjected to the freezing

• Autorzy: Majchrzak, E. , Dziewoński, M. , Kałuża, G.
• Języki publikacji: EN

Abstrakty

EN

In the paper the inverse problem consisting in the identification of volumetric latent heat of tissue subjected to the freezing is presented. Three different hypotheses concerning the substitute thermal capacity associated with the latent heat evolution are discussed. The 1D problem is considered and on the basis of the cooling curve on the skin surface the volumetric latent heat is estimated. In order to solve the inverse problem the least squares method containing the sensitivity coefficients is applied. In the final part of the paper the results of computations are shown.

Słowa kluczowe

PL

tkanka biologiczna; proces zamrażania; ciepło utajone; zagadnienia odwrotne

EN

biological tissue; freezing process; latent heat; inverse problems

• Czasopismo: Prace Naukowe Instytutu Matematyki i Informatyki Politechniki Częstochowskiej
• Rocznik: 2006
• Tom: Vol. 5, nr 1
• Strony: 106-113
• Opis fizyczny: Bibliogr. 4 poz., rys.

Twórcy

autor

Majchrzak, E.

autor

Dziewoński, M.

autor

Kałuża, G.

• Silesian University of Technology, Gliwice, Poland

Bibliografia

• [1] Mochnacki B., Suchy J.S., Numerical methods in computations of foundry processes, PFTA, Cracow 1995.
• [2] Majchrzak E., Mochnacki B., Computer Assisted Mechanics and Engineering Sciences, 1996, 3, 327-334.
• [3] Kurpisz K., Nowak A.J., Inverse thermal problems, Computational Mechanics Publications, Southampton, Boston 1995.
• [4] Kleiber M., Parameter sensitivity, J. Wiley & Sons Ltd., Chichester 1997.