Author(s)

G. Buresti, A. Mordacci, P. Petagna, A. Talamelli & G. Tanzini

Abstract

Experimental analysis of coaxial jets by means of computer aided data acquisition and processing G. Buresti", A. Mordacci\ P. Petagna^, A. Talamelli", G. Tanzini^ ^Department of Aerospace Engineering, University of Pisa, Italy S.M.C - Sistemi di Misura e Controllo, Pisa, Italy ^A.R.I.A - Aerodynamic Research for Industrial Applications, Livorno, Italy ENEL - Centro di Ricerca Termica e Nucleare, Pisa, Italy ABSTRACT An experiment for the characterization of coaxial jets with different exit conditions is described. The mean and fluctuating axial and radial velocity components are measured through Laser Doppler and Hot-wire anemometry, using computerized probe positioning, data acquisition and signal processing. The data may be useful both for the study of the mixing process between different streams, and as reference for the validation of CFD codes. The spectral analyses obtained from the first tested configuration allowed the presence of alternate vortex shedding fr

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