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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

10.1016/0040-1951(81)90216-x

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1432-1114

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Quantitative detection of turbulent reattachment u

Authors: S D Olson F O Thomas
Publish Date: 2004/04/07
Volume: 37, Issue: 1, Pages: 75-79
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Abstract

A robust method to detect the mean turbulent reattachment location with a flush surfacemounted array of hotfilm sensors is presented The method has the advantages of requiring no sensor calibration no dependence on the presence of a dominant frequency or oscillation period and it requires no qualitative interpretation of sensor timeseries signals The method is developed by investigating the flow downstream of a backwardfacing step Through computation of the “time of flight” of convected flow disturbances over adjacent sensor pairs the method offers a quantitative resolution of the mean location of reattachment for turbulent flows

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Other Papers In This Journal:
  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. Active control of an axisymmetric jet with distributed electromagnetic flap actuators
  12. Experimental investigations on steady wake effects in a high-lift turbine cascade
  13. Simultaneous droplet and vapour-phase measurements in an evaporative spray by combined ILIDS and PLIF techniques
  14. Simultaneous droplet and vapour-phase measurements in an evaporative spray by combined ILIDS and PLIF techniques
  15. Experimental study of liquid–vapor phase distribution in a single tube capillary evaporator
  16. Analysis of the impact of impeller geometry on the turbulent statistics inside a fan-stirred, cylindrical flame speed vessel using PIV
  17. 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
  18. Hot-wire spatial resolution effects in measurements of grid-generated turbulence
  19. Effect of experimental parameters and image noise on the error levels in simultaneous velocity and temperature measurements using molecular tagging velocimetry/thermometry (MTV/T)
  20. Turbulence measurements in pipe flow using a nano-scale thermal anemometry probe
  21. The pinch-off process in a starting buoyant plume
  22. Defining the roughness sublayer and its turbulence statistics
  23. Evolution of a forced counter rotating vortex pair for two selected forcing frequencies
  24. Optically efficient fluorescent tracers for multi-constituent PIV
  25. Intermittent corner separation in a linear compressor cascade
  26. A novel architecture for a super-resolution PIV algorithm developed for the improvement of the resolution of large velocity gradient measurements
  27. Measurement of the turbulent kinetic energy budget of a planar wake flow in pressure gradients
  28. Correcting hot-wire spatial resolution effects in third- and fourth-order velocity moments in wall-bounded turbulence
  29. High-speed roll coating with complex rheology fluids
  30. Wing–vortex interaction: unraveling the flowfield of a hovering rotor
  31. Near-surface velocimetry using evanescent wave illumination
  32. Designing a maximum precision interferometric particle imaging set-up
  33. Characterizing the lower log region of the atmospheric surface layer via large-scale particle tracking velocimetry
  34. Development and characterization of high-frequency resonance-enhanced microjet actuators for control of high-speed jets
  35. PIV measurement of internal flow characteristics of very low specific speed semi-open impeller
  36. A new method for measuring turbulent heat fluxes using PIV and fast-response cold-wires
  37. Reynolds number dependence of the inertial range scaling of energy dissipation rate and enstrophy in a cylinder wake
  38. Velocity measurements in the oscillatory boundary layer produced by acoustic waves
  39. Measurement of velocity profiles in a rectangular microchannel with aspect ratio α = 0.35
  40. Velocity measurements in the oscillatory boundary layer produced by acoustic waves
  41. Global Doppler frequency shift detection with near-resonant interferometry
  42. Polymer-induced turbulence modifications in an impinging jet
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