Zobrazeno 1 - 10
of 38
pro vyhledávání: '"G. N. Coleman"'
Publikováno v:
Flow, Turbulence and Combustion. 95:261-276
A Direct Numerical Simulation (DNS) of Couette-Poiseuille flow is presented and analyzed in two ways. First, we test four semi-theoretical proposals for universal behaviour of respectively the velocity, the mixing length, the eddy viscosity, and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b3ab920fe4f1405da0db82e35d96371
https://doi.org/10.1007/s10494-015-9621-5
https://doi.org/10.1007/s10494-015-9621-5
We study turbulent plane Couette-Poiseuille (CP) flows in which the conditions (relative wall velocity ΔU w ≡ 2U w , pressure gradient dP/dx and viscosity ν) are adjusted to produce zero mean skin friction on one of the walls, denoted by APG for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6794506232a7ed60f22eb55f2f3e0886
https://europepmc.org/articles/PMC6907011/
https://europepmc.org/articles/PMC6907011/
Publikováno v:
Journal of Fluid Mechanics. 710:419-452
Direct numerical simulations (DNS) of two time-dependent, axially homogeneous, axisymmetric turbulent wakes having very different initial conditions are presented in order to assess whether they reach a universal self-similar state as classically hyp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3813aaa9e804a502c4f33667d275292
https://doi.org/10.1017/jfm.2012.371
https://doi.org/10.1017/jfm.2012.371
Autor:
G. N. Coleman, Roderick Johnstone
Publikováno v:
Journal of Wind Engineering and Industrial Aerodynamics. 100:46-57
A numerical simulation of a neutral turbulent Ekman layer containing an actuator disk array is performed, to improve the understanding of the coupling between the atmospheric boundary layer and large arrays of horizontal-axis wind turbines. An infini
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f5661f9332e33fe8a9aec4341dab97e
https://doi.org/10.1016/j.jweia.2011.11.002
https://doi.org/10.1016/j.jweia.2011.11.002
Publikováno v:
Journal of Fluid Mechanics. 642:79-94
Direct numerical simulation is used to study the development of a single laminar vortex ring as it impinges on a free surface directly from below. We consider the limiting case in which the Froude number approaches zero and the surface can be modelle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2a499f122fb63a08f39c72583c4fbcc
https://doi.org/10.1017/s0022112009991753
https://doi.org/10.1017/s0022112009991753
Publikováno v:
Journal of Fluid Mechanics. 639:443-478
Direct numerical simulation (DNS) is used to study the effects of mean lateral divergence and convergence on wall-bounded turbulence, by applying uniform irrotational temporal deformations to a plane-channel domain. This extends a series of studies o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1cf9afb8b4ec57e55c49d2fcff5f6573
https://doi.org/10.1017/s0022112009991042
https://doi.org/10.1017/s0022112009991042
Publikováno v:
European Journal of Mechanics - B/Fluids. 23:319-337
Results from direct numerical simulation (DNS) of Reτ=390 channel flow subjected to the strain and deceleration typical of adverse pressure gradients (APGs), to the point of skin-friction reversal, are the reference for comparing four simple turbule
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70e4681541d091b3459c00040c5c0ec5
https://doi.org/10.1016/j.euromechflu.2003.07.002
https://doi.org/10.1016/j.euromechflu.2003.07.002
Publikováno v:
Flow, Turbulence and Combustion formerly `Applied Scientific Research'. 72:463-492
Direct numerical simulation of turbulent incompressible plane-channel flow between a smooth wall and one covered with regular three-dimensional roughness elements is performed. While the impact of roughness on the mean-velocity profile of turbulent w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ab6d3f378272fdca10cafded0acc9b6
https://doi.org/10.1023/b:appl.0000044407.34121.64
https://doi.org/10.1023/b:appl.0000044407.34121.64
Publikováno v:
Journal of Fluid Mechanics. 495:1-18
A fully developed turbulent channel flow is subjected to a mean strain that approximates that in a spatially developing adverse-pressure-gradient (APG) boundary layer. This is done by applying uniform irrotational temporal deformations to the flow do
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81190ba7e3f1b261e81b79fc5b5967a2
https://doi.org/10.1017/s0022112003005883
https://doi.org/10.1017/s0022112003005883
Autor:
G. N. Coleman
Publikováno v:
Journal of the Atmospheric Sciences. 56:891-900
The turbulent flow in the unstratified Ekman layer over a smooth surface for the case of no horizontal rotation has been simulated. All relevant scales of motion are resolved so that no subgrid-scale parameterization is needed. The Reynolds number Re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4b7ea3c00927b82f2ed939ba3982569
https://doi.org/10.1175/1520-0469(1999)056<0891:ssfadn>2.0.co
https://doi.org/10.1175/1520-0469(1999)056<0891:ssfadn>2.0.co