Mixing characteristics of turbulent water vapour jets measured using an isokinetic sampling probe |
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| Authors: | S Baskaya A Gilchrist S M Fraser |
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| Institution: | (1) Department of Mechanical Engineering, Faculty of Engineering & Architecture, Gazi University, 06570 Maltepe, Ankara, Turkey, TR;(2) Department of Mechanical Engineering, Energy Systems Division, University of Strathclyde, Glasgow, Scotland, GB |
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| Abstract: | Horizontal turbulent water vapour (steam) jets were discharged into ambient air from a circular convergent nozzle under unchoked/choked
and saturated/superheated nozzle exit conditions, resulting in two-phase (liquid and vapour), two-fluid (air and water) condensing
free jets. Flow properties and mixing characteristics have been measured with the aid of an isokinetic sampling probe arrangement.
Radial and axial profiles of air and steam mass flow rates and mass fractions were measured from which entrainment, centreline
decay and half-width spreading rates were calculated and compared with data from the literature. Overall, the mixing characteristics
of the condensing jets are very similar to those of non-condensing jets extensively reported in the literature.
Received: 30 September 1996 / Accepted: 19 May 1997 |
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