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Finite element solution of steady state temperature distribution in the human torso

✍ Scribed by E.H. Twizell; P. Smith

Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
895 KB
Volume
12
Category
Article
ISSN
0010-4825

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✦ Synopsis

A finite element model of the steady state temperature distribution in the human torso is developed. The torso is approximated by a circular cylinder of core surrounded by a layer of muscle and insulating layers of fat and skin. The model is simplified by neglecting longitudinal heat flow. The region occupied by a circular cross-section of the torso is discretized into a mesh of triangles and the boundary of the torso, that is, the skin surface, is consequently approximated by a polygon. The elliptic partial differential equation governing the steady state temperature distribution, together with the associated boundary conditions, are expressed in equivalent variational form. Linear basis functions are used and the resulting integral is minimized over the region bounded by the approximating polygon. Results for two numerical experiments are determined by solving systems of linear equations.

Finite element

Human torso Steady state Linear system Linear basis functions

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