3C PIV and PLIF Measurement in Turbulent Mixing Round Jet Impingement

Article type: Research Article

Authors: Reungoat, D. | Rivière, N.^; | Fauré, J. P.

Affiliations: TREFLE laboratory 16 Av Pey berland, 33607, Pessac, France. E-mail: reungoat@enscpb.fr | CEA CESTA 12 Av des Sablières 33114 Le Barp, France

Abstract: The present work focuses on the measurements of instantaneous concentration fields of a passive scalar due to an impinging round jet injection into a liquid filled rectangular tank. Simultaneous measurements of velocity and passive scalar concentration fields have been conducted by using Particle Image Velocimetry (planar 2C and 3C PIV) and Planar Laser Induced Fluorescence (PLIF) techniques. The mixing injection behavior is analyzed for several injection values of depth and flow rate. Results showed the classical developing and self-similar regions of the jet, the mixing layer and the coupled concentration and velocity fields due to impingement. Finally, 3C PIV reveals a 3D flow jet structure which seems to be a swirl that does not disturb 2D analysis.

Keywords: Impinging jet, Turbulent, SPIV, PLIF

Journal: Journal of Visualization, vol. 10, no. 1, pp. 99-110, 2007