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RATIONAL CONSIDERATIONS FOR MODELLING HUMAN THERMOREGULATION DURING COLD WATER IMMERSION.

Author(s) : TIKUISIS P., GONZALEZ R. R.

Summary

IMMERSION IN COLD WATER BRINGS ABOUT LARGE CHANGES IN BODY TEMPERATURE AND METABOLISM THAT ADD TO THE COMPLEXITY OF MODELLING HUMAN THERMOREGULATION. THREE SPECIFIC PROBLEMS ARE EXAMINED: (1) FINITE-DIFFERENCE SOLUTION OF THE BIOHEAT EQUATION ; (2) DIFFERENCES BETWEEN PREDICTED AND MEASURED INITIAL CONDITIONS ; AND (3) PREDICTION OF CONVECTIVE HEAT LOSS. AN OPTIMIZATION OF THE FINITE-DIFFERENCE SOLUTIONIS PRESENTED. A GREATER BENEFIT IS OBTAINED BY INCREASING THE NUMBER OF NODES RATHER THAN DECREASING THE INTEGRATION TIME INTERVAL. A PROCEDURE IS GIVEN FOR MATCHING THE PREDICTED AND MEASURED INITIAL VALUES OF THE DEEP BODY TEMPERATURE AND THE METABOLIC RATE.

Details

  • Original title: RATIONAL CONSIDERATIONS FOR MODELLING HUMAN THERMOREGULATION DURING COLD WATER IMMERSION.
  • Record ID : 1989-1066
  • Languages: English
  • Publication date: 1988
  • Source: Source: ASHRAE Trans.
    vol. 94; n. 1; 1361-1370; 4 fig.; 1 tabl.; 20 ref.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

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