3C PIV and PLIF measurement in turbulent mixing

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.

[1]  Hirofumi Hattori,et al.  Direct Numerical Simulation of Turbulent Heat Transfer in Plane Impinging Jet , 2004 .

[2]  Noel T. Clemens,et al.  Scalar/velocity imaging of the fine scales in gas-phase turbulent jets , 2001 .

[3]  Toshio Kobayashi,et al.  Particle image velocimetry and planar laser-induced fluorescence measurements on lobed jet mixing flows , 2000 .

[4]  J. Legrand,et al.  Study of mixing in an axisymmetric coflowing liquid jet by coupling L.D.A. to an electrochemical method , 2000 .

[5]  J. Stricker,et al.  3-D Turbulent density field diagnostics by tomographic Moiré technique , 1997 .

[6]  Themistocles Dracos,et al.  Time resolved 3D passive scalar concentration-field imaging by laser induced fluorescence (LIF) in moving liquids , 2001 .

[7]  D. R. Webster,et al.  Simultaneous DPTV/PLIF measurements of a turbulent jet , 2001 .

[8]  H. Martin.  Heat and Mass Transfer between Impinging Gas Jets and Solid Surfaces , 1977 .

[9]  Ephraim Gutmark,et al.  Visualization and two-color DPIV measurements of flows in circular and square coaxial nozzles , 2001 .

[10]  Laurent Joly,et al.  Etude numérique des effets de densité dans un jet de mélange turbulent en microgravité , 1996 .

[11]  Laszlo Fuchs,et al.  Mixing in a confined turbulent impinging jet using planar laser-induced fluorescence , 1998 .

[12]  G. Batchelor,et al.  An Introduction to Fluid Dynamics , 1968 .

[13]  G. Ooms,et al.  On the influence of the exit conditions on the entrainment rate in the development region of a free, round, turbulent jet , 1983 .

[14]  Jun Sakakibara,et al.  Three-Dimensional Vortical Structures of a Round Impinging Jet Measured by Scanning Stereo-PIV , 2005 .

[15]  Carl H. Gibson,et al.  Jet Turbulence Dissipation Rate Measurements and Correlations , 1971 .

[16]  Adrian Wing-Keung Law,et al.  Measurement of mixing processes with combined digital particle image velocimetry and planar laser induced fluorescence , 2000 .

[17]  Dorian Liepmann,et al.  Turbulent structure during transition to self-similarity in a round jet , 1998 .

[18]  Nobuyuki Fujisawa,et al.  Interaction of two parallel plane jets of different velocities , 2004, J. Vis..

[19]  Laszlo Fuchs,et al.  LIF Study of Mixing in Circular Impinging Jets - Effects of Boundary Conditions , 2003 .

[20]  Noel T. Clemens,et al.  Measurements of the three-dimensional scalar dissipation rate field in gas-phase planar turbulent jets , 1997 .

[21]  Richard K. Cohn,et al.  Simultaneous whole-field measurements of velocity and concentration fields using a combination of MTV and LIF , 2000 .

[22]  L. Lourenço.  Particle Image Velocimetry , 1989 .

[23]  Nobuyuki Fujisawa,et al.  Simultaneous flow visualization and PIV measurement of turbulent buoyant plume , 2005, J. Vis..

[24]  Koichi Nishino,et al.  Turbulence statistics in the stagnation region of an axisymmetric impinging jet flow , 1996 .

[25]  J. Westerweel,et al.  Measurement of turbulent mixing usind PIV and LIF , 1999 .

[26]  Chongfang Ma,et al.  Theoretical study on impingement heat transfer with single-phase free-surface slot jets , 2005 .

[27]  John R. Saylor,et al.  Differential diffusion in low Reynolds number water jets , 1998 .

[28]  Markus Raffel,et al.  Particle Image Velocimetry: A Practical Guide , 2002 .