A Visual Description of the Convective Flow Field around the Head of a Human

Article type: Research Article

Authors: Özcan, O. | Meyer, K. E. | Melikov, A. K.

Affiliations: Faculty of Mechanical Engineering, Yıldız Technical University, Istanbul 34349, Turkey. E-mail: oktayo@yildiz.edu.tr | International Centre for Indoor Environment and Energy, Department of Mechanical Engineering, Technical University of Denmark, DK-2800, Lyngby, Denmark

Abstract: Mean velocity data obtained by PIV (Particle Image Velocimetry) around the head of a real-life size breathing thermal manikin are presented for two cases of 'no breathing' and 'continuous exhalation through nose'. Experiments were conducted in a special chamber which provided stationary convective flows around the seated manikin. Results are limited to the plane of symmetry. The paper aims to describe the physical structure of the turbulent flow field by presenting velocity and vorticity data in color graphics.

Keywords: PIV, Turbulence, Free and Forced Convection, Streamline Topology

Journal: Journal of Visualization, vol. 8, no. 1, pp. 23-31, 2005