Analysis of a turbulent jet mixing flow by using a PIV-PLIF combined system

In the present paper, the development of a high-resolution PIV-PLIF combined system for the simultaneous measurements of velocity and passive scalar concentration fields is described. The high-resolution PIV-PLIF combined system is used to perform the simultaneous whole-field measurements of velocity and concentration in the near field of a turbulent jet mixing flow. The characteristics of the mass transfer process and momentum transfer process in the near field of the jet mixing flows are discussed in the terms of ensemble-averaged velocity and concentration, turbulent intensity, concentration standard deviation and the correlation terms between the fluctuating velocities and concentration.

[1]  S Suresha,et al.  Thermal sensitivity analysis of a 22 N bipropellant thruster in a spacecraft , 1999 .

[2]  Kuang-An Chang,et al.  A single-camera coupled PTV–LIF technique , 2001 .

[3]  R. Schefer,et al.  Simultaneous Measurement of Velocity and Scalars in a Turbulent Nonpremixed Flame by Combined-Laser Doppler Velocimetry and Laser Raman Scattering , 1985 .

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

[5]  HU Hui,et al.  Improve the Spatial Resolution of PIV Results by Using Hierarchical Recursive Operation , 2000 .

[6]  J. Coppeta,et al.  Dual emission laser induced fluorescence for direct planar scalar behavior measurements , 1998 .

[7]  H. Hui,et al.  Changes to the vortical and turbulent structure of jet flows due to mechanical tabs , 1999 .

[8]  Narinder K. Tutu,et al.  Intermittency and preferential transport of heat in a round jet , 1978, Journal of Fluid Mechanics.

[9]  Paul A. Libby,et al.  Hot-wire probes for measuring velocity and concentration in helium-air mixtures , 1970 .

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

[11]  J. Westerweel,et al.  The effect of a discrete window offset on the accuracy of cross-correlation analysis of digital PIV recordings , 1997 .

[12]  Mitsuo Maeda,et al.  Laser-Induced Fluorescence , 1996 .

[13]  Ronald Adrian,et al.  Optimization of particle image velocimeters , 1990, Other Conferences.

[14]  R. Adrian.  Particle-Imaging Techniques for Experimental Fluid Mechanics , 1991 .

[15]  M. Wolff,et al.  Simultaneous concentration and velocity measurements using combined laser-induced fluorescence and laser Doppler velocimetry: Application to turbulent transport , 1996 .

[16]  Richard D. Keane,et al.  Optimization of particle image velocimeters. I, Double pulsed systems , 1990 .

[17]  Toshio Kobayashi,et al.  Evaluation of the cross correlation method by using PIV standard images , 1998 .