FINITE ELEMENT ESTIMATION OF ONE-DIMENSIONAL UNSTEADY STATE HEAT REGULATION IN HUMAN HEAD EXPOSED TO COLD ENVIRONMENT

Abstract

The thermal equilibrium in human head is more stable as compared to other body organs. The thermoregulatory phenomenon is mainly dependent on brain temperature. It is therefore desirable to develop a numerical model to monitor thermal changes in the head. A theoretical model has been developed by using finite element approach for the estimation of temperature variations in human brain and overlying layers at cold environment. The effect of atmospheric temperature has been analyzed at micro level for rapid change in outer layers of the head. The estimation is based on bio-heat equation associated with biophysical and biochemical reactions taking place.