Shear-free turbulent boundary layers. Part 2. New concepts for Reynolds stress transport equation modelling of inhomogeneous flows
作者： Blair Perot , Parviz Moin
DOI: 10.1017/S0022112095001947
关键词: Turbulence 、 Computer simulation 、 Mechanics 、 Free surface 、 Classical mechanics 、 Reynolds stress 、 Reynolds stress equation model 、 Direct numerical simulation 、 Physics 、 Dissipation 、 Convection–diffusion equation
摘要: Models for the dissipation tensor and (slow) pressure–strain terms of Reynolds stress transport equations are presented which applicable near boundaries. These models take into account large inhomogeneity anisotropy that can be present walls surfaces, inspired by physical insights developed in Part 1 this paper. The model represents a fundamentally new approach to dealing with turbulence inhomogeneities. shows how classic return-to-isotropy Lumley (1978) adapted near-wall region. closure hypotheses underlying these two tested an priori fashion using direct numerical simulation (DNS) data.
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