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Title of Journal: Exp Fluids

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Abbravation: Experiments in Fluids

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Springer-Verlag

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DOI

10.1016/0038-0717(95)00049-k

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1432-1114

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Active control of an axisymmetric jet with distrib

Authors: H Suzuki N Kasagi Y Suzuki
Publish Date: 2004/01/21
Volume: 36, Issue: 3, Pages: 498-509
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Abstract

Miniature electromagnetic flap actuators are developed and mounted on the periphery of the nozzle exit of an axisymmetric jet to induce various flow modes and enhance mixing processes It is demonstrated that the flap actuators can significantly modify the largescale vortical structures In particular when the flaps are driven in antiphase on either side of the jet alternately inclined and bent vortex rings are generated and the jet bifurcates into two branches Since the vortex rings are formed at the very vicinity of the nozzle exit the bifurcation is accomplished as close as x/D=3The authors gratefully acknowledge Professors H Miura and I Shimoyama for their guidance in developing the actuators We would like to thank Mr N Kurimoto for his help in the flap characterization This work was supported through the GrantinAid for Scientific Research No 10355010 by the Ministry of Education Culture Sports Science and Technology

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  1. Passive mixing control of plane parallel jets
  2. Planar fluorescence for round bubble imaging and its application for the study of an axisymmetric two-phase jet
  3. Imaging diffusion in a microfluidic device by third harmonic microscopy
  4. Two- and three-dimensional flows in nearly rectangular cavities driven by collinear motion of two facing walls
  5. Vortex dynamics and mass entrainment in turbulent lobed jets with and without lobe deflection angles
  6. Using stereo multigrid DPIV (SMDPIV) measurements to investigate the vortical skeleton behind a finite-span flapping wing
  7. Influence of a wavy boundary on turbulence.
  8. A novel data reduction technique for single slanted hot-wire measurements used to study incompressible compressor tip leakage flows
  9. Digital holography for micro-droplet diagnostics
  10. Kriging regression of PIV data using a local error estimate
  11. Experimental investigations on steady wake effects in a high-lift turbine cascade
  12. Simultaneous droplet and vapour-phase measurements in an evaporative spray by combined ILIDS and PLIF techniques
  13. Simultaneous droplet and vapour-phase measurements in an evaporative spray by combined ILIDS and PLIF techniques
  14. Experimental study of liquid–vapor phase distribution in a single tube capillary evaporator
  15. Analysis of the impact of impeller geometry on the turbulent statistics inside a fan-stirred, cylindrical flame speed vessel using PIV
  16. Detection of microorganismic flows by linear and nonlinear optical methods and automatic correction of erroneous images artefacts and moving boundaries in image generating methods by a neuronumerical hybrid implementing the Taylor’s hypothesis as a priori knowledge
  17. Hot-wire spatial resolution effects in measurements of grid-generated turbulence
  18. Effect of experimental parameters and image noise on the error levels in simultaneous velocity and temperature measurements using molecular tagging velocimetry/thermometry (MTV/T)
  19. Turbulence measurements in pipe flow using a nano-scale thermal anemometry probe
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  24. Intermittent corner separation in a linear compressor cascade
  25. A novel architecture for a super-resolution PIV algorithm developed for the improvement of the resolution of large velocity gradient measurements
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  33. Development and characterization of high-frequency resonance-enhanced microjet actuators for control of high-speed jets
  34. PIV measurement of internal flow characteristics of very low specific speed semi-open impeller
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  41. Polymer-induced turbulence modifications in an impinging jet
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