By Alexander Baklanov, Branko Grisogono, A. Baklanov, B. Grisogono
This quantity offers peer-reviewed papers from the NATO complex learn Workshop on Atmospheric Boundary Layers held in April 2006. The papers are divided into thematic periods: nature and conception of turbulent boundary layers; boundary-layer flows: modeling and purposes to environmental safety; nature, conception and modeling of boundary-layer flows; air flows inside and above city and different complicated canopies: air-sea-ice interaction.
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Additional info for Atmospheric Boundary Layers: Nature, Theory, and Application to Environmental Modelling and Security
3 Same as in Fig. 1 1 10 Energy- and flux-budget (EFB) turbulence closure model for stably stratified flows Fig. 4 Same as in Figure 2 but for the vertical anisotropy of turbulence, A z = E z /E K , on addition of DNS data of Stretch et al. 1 1 10 100 the lower, strong-shear layers. It is not surprising that the spread of data on A z versus Ri is quite large. 075. (0) (0) −2 ∞ , and (τ 2 E −2 ) )Ri=0 , Pr T , Ri∞ , A Below we use the estimates of A z , (τ 2 E K z f K Ri=∞ to determine our empirical constants.
5. 1 and C f = 1 (see discussion of Eq. 7). Given U (z), (z) and N , Eqs. 14a, b allow determination of the turbulent fluxes, τ and Fθ , and the Obukhov length, L = τ 3/2 (−β Fθ )−1 , at the computational level z. Numerical solution to this system is simplified by the fact that the major terms on the right-hand sides are the logarithmic terms, and moreover, the second terms in square brackets are usually small compared to unity. Hence iteration methods should work efficiently. As a first approximation N , unknown until we determine the ABL height, is taken N = 0.
J Atmos Sci (In press) Mellor GL, Yamada T (1974) A hierarchy of turbulence closure models for planetary boundary layers. J Atmos Sci 31:1791–1806 Moser RG, Kim J, Mansour NN (1999) Direct numerical simulation of turbulent channel flow up to Re = 590. Phys Fluids 11:943–945 Monin AS, Obukhov AM (1954) Main characteristics of the turbulent mixing in the atmospheric surface layer. Trudy Geophys Inst AN SSSR 24(151):153–187 Monin AS, Yaglom AM (1971) Statistical fluid mechanics. Vol 1. MIT Press, Cambridge, Massachusetts, 769 pp Ohya Y (2001) Wind-tunnel study of atmospheric stable boundary layers over a rough surface.