Investigation of nonlinear temperature distribution in biological tissues by using bioheat transfer equation of Pennes’ type
نویسندگان
چکیده
In this paper, a two level finite difference scheme of Crank-Nicholson type is constructed and used to numerically investigate nonlinear temperature distribution in biological tissues described by bioheat transfer equation of Pennes’ type. For the equation under consideration, the thermal conductivity is either depth-dependent or temperature-dependent, while blood perfusion is temperature-dependent. In both cases of depthdependent and temperature-dependent thermal conductivity, it is shown that blood perfusion decreases the temperature of the living tissue. Our numerical simulations show that neither the localization nor the magnitude of peak temperature is affected by surface temperature; however, the width of peak temperature increases with surface temperature.
منابع مشابه
Temperature Distribution in Living Biological Tissue Simultaneously Subjected to Oscillatory Surface and Spatial Heating: Analytical and Numerical Analysis
To predict temperature distribution in a finite biological tissue simultaneously subjected to oscillatory surface and spatial heating, we apply a nonlinear one-dimensional temperature-dependent blood perfusion bioheat Pennes transfer equation. Going from works of Jens Lang et al. in IEEE Trans. on Biomedical Engineering (1999) pp. 1129–138 and Tzu-Ching et al. in Medical Engineering & Physics 2...
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