Analysis of the P1 approximation for the radiative heat transfer in skin tissues loaded with nanoparticles

ANDRE MAURENTE; BERNARD LAMIEN; HELCIO R. B. ORLANDE; ELICABE, GUILLERMO

Ribeirao Preto

Congreso; 22nd International Congress of Mechanical Engineering; 2013

ABCM

The effectiveness of the cancer treatment by hyperthermia depends on the heat transfer process, in which the goal is to overheat and kill the cancerous cells, but preserving the surrounding healthy tissues. Computational simulation can be employed for better comprehending the heat transfer process in biological tissues, including tumorous and healthy cells. Here the one-dimensional coupled radiation, conduction and blood perfusion in hyperthermia therapy is solved using two different techniques for the radiation modeling: P1-approximation and Discrete Ordinate method. Using the P1-approximation for the radiation model in complex coupled simulations of the heat transfer in hyperthermia therapy is highly desirable, since the method is simple and provides considerable CPU time reduction. The results obtained in this paper demonstrate that the P1-approximation can be accurately employed under conditions which can occur in hyperthermia applications for skin cancer.