An Experimental Study of Evolving Turbulence in Uniform Mean Shear Flows with and Without Stable Stratification |
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Page 7
... wind tunnel . Although KT were able to produce different values of the mean shear , it was at the expense of severely changing the centerline velocity . In all these wind tunnel experiments the initial velocity of each layer was ...
... wind tunnel . Although KT were able to produce different values of the mean shear , it was at the expense of severely changing the centerline velocity . In all these wind tunnel experiments the initial velocity of each layer was ...
Page 33
... WIND TUNNEL MEASUREMENTS The results in Section 2.4 suggest that a more universal representation of the turbulence intensities developing in a uniform mean shear can be achieved if they are expressed as functions ... Wind Tunnel Measurements.
... WIND TUNNEL MEASUREMENTS The results in Section 2.4 suggest that a more universal representation of the turbulence intensities developing in a uniform mean shear can be achieved if they are expressed as functions ... Wind Tunnel Measurements.
Page 50
... Wind tunnel measurements are char- acterized equally well by Eq . ( 2. 20 ) for T in the same range as the water tunnel data . If the characteristic time of the eddies ( l / w ' ) is proportional -1 to the characteristic time of the ...
... Wind tunnel measurements are char- acterized equally well by Eq . ( 2. 20 ) for T in the same range as the water tunnel data . If the characteristic time of the eddies ( l / w ' ) is proportional -1 to the characteristic time of the ...
Common terms and phrases
asymptotic Atta buoyancy forces centerline velocity comparison decaying turbulence decrease density gradient dependence dimensionless development dimensionless downstream distance dissipation Downstream development eddy Figure Fluid Mech frequencies function of dimensionless gradient Richardson number grow growth Helland increasing initial length scale inlet internal waves Itsweire kinetic energy equation KUOM layer linear Longitudinal turbulent intensity mean shear flows measurements mesh mixing efficiency nearly constant nondimensional observed One-dimensional spectra overturning scales plotted Reynolds number Reynolds stress Ri cr sec¯¹ stability Ri stably stratified uniform Stillinger stratified fluid stratified shear flows stratified uniform mean Symbol U cm/sec Tavoularis 1985 tion turbulent flows turbulent kinetic energy turbulent shear flow uniform mean flow uniform mean shear unsheared unstratified values velocity profile Vertical turbulent intensity vertical velocity viscous water channel wavenumber Webster wind tunnel Δ Δ Δ