NUMERICAL SIMULATION OF HUMAN HEAD HEAT TRANSFER TO THE AMBIENT AIR TO EVALUATE IT'S ADEQUATE THERMAL COMFORT

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FATOURAEI N.; PASHAEI A.; NABAEI M.; ATAEI G.R.

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Journal: Tehran University Medical Journal Year:2005 | Volume:63 | Issue:6 Page(s): 463-472

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Title

NUMERICAL SIMULATION OF HUMAN HEAD HEAT TRANSFER TO THE AMBIENT AIR TO EVALUATE IT'S ADEQUATE THERMAL COMFORT

Author(s)

FATOURAEI N. | PASHAEI A. | NABAEI M. | ATAEI G.R. | Issue Writer Certificate

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Abstract

Background: The Pennes bioheat equation is a well-known heat conduction equation in which the convective effects of the moving blood are treated as a volumetric heat source through a perfused tissue and the metabolic heat generation is also included as another heat source. Both of these sources regulate the temperature distribution within the human head. A natural convection heat transfer mechanism forms around the human head due to the temperature rise on the surface tissue. Methods and Materials: In this research a two dimensional model of the mid-sagittal plane of human head was created from a realistic anatomy data and it was simulated numerically to investigate the heat transfer phenomena within the head tissues and its effects on the natural convection in ambient air.Results: The maximum and the minimum tissue temperature occur in the brain and the nose, respectively. The prediction of the local Nusselt number distributions along the surface tissue shows a maximum and a minimum value at the front and the upper lip surfaces, respectively. The temperature distributions on the surface tissue show different trend from the Nusselt number and have a maximum value at the front and a minimum value at the nose.Conclusion: The numerical simulations have proved to be a powerful tool to investigate the heat removal and the thermal regulation in the human body.Key words: Head heat transfer, Thermal regulation, Natural convection, Bioheat equation, Pennes equation, Nusselt number, Thermal comfort.

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APA: Copy

FATOURAEI, N., PASHAEI, A., NABAEI, M., & ATAEI, G.R.. (2005). NUMERICAL SIMULATION OF HUMAN HEAD HEAT TRANSFER TO THE AMBIENT AIR TO EVALUATE IT'S ADEQUATE THERMAL COMFORT. TEHRAN UNIVERSITY MEDICAL JOURNAL (TUMJ), 63(6), 463-472. SID. https://sid.ir/paper/39030/en

Vancouver: Copy

FATOURAEI N., PASHAEI A., NABAEI M., ATAEI G.R.. NUMERICAL SIMULATION OF HUMAN HEAD HEAT TRANSFER TO THE AMBIENT AIR TO EVALUATE IT'S ADEQUATE THERMAL COMFORT. TEHRAN UNIVERSITY MEDICAL JOURNAL (TUMJ)[Internet]. 2005;63(6):463-472. Available from: https://sid.ir/paper/39030/en

IEEE: Copy

N. FATOURAEI, A. PASHAEI, M. NABAEI, and G.R. ATAEI, “NUMERICAL SIMULATION OF HUMAN HEAD HEAT TRANSFER TO THE AMBIENT AIR TO EVALUATE IT'S ADEQUATE THERMAL COMFORT,” TEHRAN UNIVERSITY MEDICAL JOURNAL (TUMJ), vol. 63, no. 6, pp. 463–472, 2005, [Online]. Available: https://sid.ir/paper/39030/en

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