SEA WATER HYDROSTATIC PRESSURE INFLUENCE ON THE DIVER’S COMFORT. AERODYNAMIC ASPECTS

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-14-8 / ISSN 1314-2704, June 19-25, 2014, Book 3, Vol. 2, 685-692 pp

ABSTRACT
Dynamics of the air flow through the system comprising the breathing apparatus and the human breathing ways affects the easiness the diver is breathing with and, subsequently his underwater comfort. Experimental investigation on eight divers in a wet hyperbaric simulator allowed us to collect data regarding the breathing flow rate and frequency, and to estimate the breathing consumed power at different depth level. In order to eliminate the metabolic influence, the results are obtained in terms of a new proposed amount: the added consumed power due to an increased breathing aerodynamic resistance.

Keywords: man beneath the sea, gas dynamics, aerodynamic resistance.