https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 Similarity in the far field of a turbulent round jet https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:36 . Since the Taylor microscale Reynolds number R-lambda is approximately constant (similar or equal to450) along the jet axis, the structure functions and spectra also collapse approximately when the normalization uses either the Kolmogorov or integral length scales. Over the dissipative range, the best collapse occurs when Kolmogorov variables are used. The use of and the integral length scale L provides the best collapse at large separations. A measure of the quality of collapse is given. (C) 2005 American Institute of Physics.]]> Wed 11 Apr 2018 15:49:01 AEST ]]> Scale-by-scale turbulent energy budget in the intermediate wake of two-dimensional generators https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:17034 2¯ is reasonably well approximated on the axis of the intermediate wake of a circular cylinder. The similarity, which scales on the Taylor microscale λ and q2¯, is then used to determine s-b-s energy budgets from the data of Antonia, Zhou, and Romano [“Small-scale turbulence characteristics of two-dimensional bluff body wakes,” J. Fluid Mech.459, 67–92 (2002)] for 5 different two-dimensional wake generators. In each case, the budget is reasonably well closed, using the locally isotropic value of the mean energy dissipation rate, except near separations comparable to the wavelength of the coherent motion (CM). The influence of the initial conditions is first felt at a separation Lc¯ identified with the cross-over between the energy transfer and large scale terms of the s-b-s budget. When normalized by q2¯ and Lc , the mean energy dissipation rate is found to be independent of the Taylor microscale Reynolds number. The CM enhances the maximum value of the energy transfer, the latter exceeding that predicted from models of decaying homogeneous isotropic turbulence.]]> Wed 11 Apr 2018 15:47:49 AEST ]]> Approach towards local isotropy in statistically stationary turbulent shear flows https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:52689 Fri 20 Oct 2023 11:08:13 AEDT ]]>