Application of the control volume method in numerical modeling of cryosurgery treatment

• Autorzy: Szopa R. , Siedlecki J.
• Języki publikacji: EN

Abstrakty

EN

In the paper the problems of cryosurgery treatment are discussed. In particular the heat exchange between external cylindrical cryoprobe and human tissue is analyzed. The cryoprobe tip temperature changes from the initial temperature to the minimal one and back in a linear way (broken line). Thermophysical parameters determining the thermal properties of tissue can be treated as the temperature-dependent functions. The freezing model bases on the approach called ‘a one domain method’, and in the energy equation called a substitute thermal capacity appears. At the stage of computations the control volume method (CVM) is used. In the final part of paper the examples of computations are presented.

Słowa kluczowe

EN

bioheat transfer; modeling of cryosurgery treatment; control volume method

PL

przepływ ciepła

• Wydawca: Wydawnictwo Politechniki Częstochowskiej
• Czasopismo: Journal of Applied Mathematics and Computational Mechanics
• Rocznik: 2014
• Tom: Vol. 13, nr 4
• Strony: 131--136
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Szopa R.

• Faculty of Civil Engineering, Czestochowa University of Technology

autor

Siedlecki J.

• Institute of Mathematics, Czestochowa University of Technology Częstochowa, Poland

Bibliografia

• [1] Dziewonski M., Mochnacki B., Szopa R., Sensitivity of biological tissue freezing process on the changes of cryoprobe cooling rate, Book Series: Mechanika Kaunas University of Technology 2011, 82-87.
• [2] Mochnacki B., Dziewoński M., Numerical analysis of cyclic freezing, Acta of Bioengineering and Biomechanics 2004, 6, 1, 476-479.
• [3] Mochnacki B., Suchy J.S., Numerical Methods in Computations of Foundry Processes, PFTA, Cracow 1995.
• [4] Majchrzak E., Mochnacki B., Numerical Methods. Theory, Practical Aspects, Algorithms, Publ. of the Silesian University of Technology, Gliwice 2004 (in Polish).
• [5] Majchrzak E., Modeling and analysis of thermal phenomena, [in:] Mechanics, part 4, Vol. 12, Biomechanics, R. Bedzinski (ed.), IPPT PAN, Warsaw 2011, 223-361.