Deflection and Reattachment of a Radial Jet : 2nd Report, Turbulent Structure of Deflected Jet

Abstract

This study is concemed with the turbulent structure of a radial jet which is deflected by the impingement with an annular jet. Probability density functions, turbulent energy spectra, auto-correlations, and two-point correlations of the streamwise fluctuating velocity are measured and the differences of the turbulent structure between a radial free jet and a deflected jet are clarified. The fluctuating velocity field of the deflected jet in the region near the nozzle exit becomes relatively methodical in comparison with a free jet and the large-scale structure dominates in place of the small-scale structure of a free jet which suggests an organized eddy structure.