Abstract: A series of large-eddy simulators of free and sheared convective flow between moving flat plates is presented. Results for free convection are compared with laboratory data. The ratio of friction velocity to the convective ...

Abstract: Numerical calculations of two-dimensional convection between flat plates at high Rayleigh numbers are presented. They do not show the large cell aspect ratios observed by Rothermel and Agee in their numerical calculations ...

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Abstract: The Gaussian puff model framework is extended to provide a description of velocity shear distortion effects. An efficient splitting-merging algorithm is presented so that a maximum puff size can be specified for a calculation. ...

Abstract: Two-dimensional numerical computations of the developing boundary layer with a positive surface heat flux are presented. The model incorporates moisture phase-change effects; we are particularly interested in the cloud-street ...

Abstract: The boundary-layer eddy structure under conditions similar to the cold-air outbreak of GALE IOP 2 is studied using numerical simulations. The simulations are run in two basic modes: a quasi-two-dimensional version that ...

Abstract: An improved method for representing the small-scale structure of a turbulent scalar field using fractal recursion techniques is described. The model generalizes the fractal successive refinement method described by Sykes ...

Abstract: A long-range transport model based on turbulence closure concepts is described. The model extends the description of planetary boundary layer turbulent diffusion to the larger scales and uses statistical wind information ...

Abstract: Detailed statistics of the fluctuating concentration field produced by large-eddy simulations (LES) of the chemically reactive mixing of two species in a convectively driven mixed layer are presented. The effect of the ...