Abstract
Digital time series hot-wire data, acquired in the near field of a turbulent free jet of air issuing from a sharp-edged isosceles triangular orifice, have been post-processed using a phase-averaging procedure to determine the coherent and random contributions to turbulence statistics. The Reynolds number, based on the equivalent diameter of the orifice, was 1.84×105. It was found that momentum transfer by the Reynolds primary shear stress occurs mainly via the coherent primary shear stress.
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References
Gutmark EJ, Grinstein FF (1999) Flow control with noncircular jets. Annu Rev Fluid Mech 31:239–272
Husain HS, Hussain F (1991) Eliptic jets. Part 2. Dynamics of coherent structures: pairing. J Fluid Mech 223:439–482
Hussain AKMF, Zaman KBMQ (1980) Vortex pairing in a circular jet under controlled excitation. Part 2. Coherent structure dynamics. J Fluid Mech 101:493–544
Kiya M, Matsumura M (1988) Incoherent turbulence structure in the near wake of a normal plate. J Fluid Mech 190:343–356
Mi J, Nathan GJ, Luxton RE (2000) Centerline mixing characteristics of jets from nine differently shaped nozzles. Exp Fluids 28:93–94
Quinn WR (2005) Measurements in the near flow field of an isosceles triangular turbulent free jet. Exp Fluids 39:111–126
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The ongoing financial support of the Natural Sciences and Engineering Research Council of Canada through grant RGPIN 5484 is gratefully acknowledged.
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Quinn, W.R. Phase-averaged measurements in an isosceles triangular turbulent free jet. Exp Fluids 39, 941–943 (2005). https://doi.org/10.1007/s00348-005-0011-y
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DOI: https://doi.org/10.1007/s00348-005-0011-y