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Second Symposium on Turbulence and Shear Flow Phenomena
June, 27-29, 2001, KTH, Stockholm, Sweden

DOI: 10.1615/TSFP2

PIV MEASUREMENTS IN IMPINGING JETS AT A HIGH REYNOLDS NUMBER

pages 289-294
DOI: 10.1615/TSFP2.1220
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Краткое описание

The focus of the paper is on detailed measurements of mean flow and turbulence in the impingement zone of a multiple impinging jet set-up, using Particle Image Velocimetry (PIV). In order to verify our PIV system, the results of PIV and LDA measurements were conducted in a single impinging jet. Good agreement was observed between the results of both techniques. Subsequently, PIV measurements provided mean and fluctuating velocity fields in three planes in a multiple impinging jet set-up. A horse shoe type vortex was observed that circumscribes the outer jet of the array. Furthermore, compared to a single impinging jet the potential core of the central jet is significantly shorter.

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