Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Numerical Simulation of the Heat Transfer in Canine Knee Joint During the Situation of the Therapeutic Cooling – An Analysis Considering Variable Blood Perfusion
Submission Author:
Caroline Rodrigues , MG , Brazil
Co-Authors:
Fernanda Souza da Silva, Rudolf Huebner, João Victor Toledo, Angélica Araújo, Clarissa de Moraes Martins, Caroline Rodrigues
Presenter: Clarissa de Moraes Martins
doi://10.26678/ABCM.COBEM2017.COB17-0867
Abstract
This study aimed to a heat transfer simulation in the canine knee, resulting from the application of therapeutic cooling. The two-dimensional domain, represented by the cross section of the canine knee in actual dimensions, was made from photographic images. The temperature variation in joint is modeled based on the heat diffusion equation, considering the effects of blood perfusion and heat generated by metabolism, according to Penne's bioheat equation. The simulation was performed considering the variable blood perfusion according to tissue temperature. The ANSYS-CFX® program was used to execute the numerical simulation for a period of 30 minutes. The experimental temperature applied to the epidermis was considered as a boundary condition. The simulation results were compared with experimental data in vivo. A maximum percentage difference of 44.10% was found between the numerical results and the experimental data in vivo, considering the internal tissues. The numerical simulation is a noninvasive way to determine the temperature profile of the living tissues. However, it was noticed that the physiological properties and boundary condition shall be improved.
Keywords
canine knee joint, bioheat transfer, variable blood perfusion, cryotherapy, thermal simulation
