Numerical Simulation of Human Radiation Heat Transfer Using a Mathematical Model of Human Physiology and Computational Fluid Dynamics (CFD)

Rehan Yousaf, Dusan Fiala and Andreas Wagner
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Rehan Yousaf: University of Karlsruhe, Division for Building Physics and Building Services (fbta)
Dusan Fiala: University of Karlsruhe, Division for Building Physics and Building Services (fbta)
Andreas Wagner: University of Karlsruhe, Division for Building Physics and Building Services (fbta)

A chapter in High Performance Computing in Science and Engineering `07, 2008, pp 647-666 from Springer

Abstract: Abstract Human-environment thermal interactions play an important role in numerous areas of human endeavour from the safety of fire-fighters, thermal comfort in buildings to energy efficient planning of heating and ventilation systems. The thermal interactions that occur between humans and their immediate environments are however very complex and thus difficult to predict. The project currently being carried out at Building Sciences Group (fbta) at the University of Karlsruhe started in March 2006. This project is part of a four year research project in collaboration with the Institute of Energy and Sustainable Development (IESD) at the De Montfort University in Leicester, UK and the Technical University of Denmark. The focus is on the complex human-environment interactions in naturally ventilated buildings to predict human thermal comfort. To correctly predict the thermo-physiological interactions of humans with their surroundings that dictate the perception of thermal comfort, an advanced and widely validated cybernetic multi-segmental thermophysiological model namely “IESD Fiala Model” is employed. The model is used to provide the necessary physiological data as boundary conditions for Computational Fluid Dynamics (CFD) simulations incorporating a detailed geometry model of the human body and the surrounding space. CFD techniques can predict in detail the spatial variations of air temperature, air speed, turbulence intensity, radiation effects on heat transfer, moisture and pollutant concentrations. At the moment a number of CFD codes exist, but due to time constraints only ANSYS CFX Version 10.0 [1] is used in this project.

Keywords: Computational Fluid Dynamics; Thermal Comfort; Computational Fluid Dynamics Simulation; Radiation Model; View Factor (search for similar items in EconPapers)
Date: 2008
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DOI: 10.1007/978-3-540-74739-0_42

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