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Showing 1 to 5 of 5 for “"Velocity moments"”.
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Velocity moment analysis on oscillatory flow above self-formed vortex ripples
… energy, Reynolds shear stress, and higher order velocity moments including skewness factors, flatness factors, and turbulent diffusion factors were studied for nine different Reynolds numbers. The study on phase-averaged skewness factors indicated that the area of skewed streamwise velocity …
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Statistical Analysis of High-Order Moments from Direct Numerical Simulation of a Turbulent Boundary Layer
… of third-, fourth-, and fifth-order central velocity moments is presented. The statistics were extracted from flow field data from a finely resolved direct numerical simulation by the Universidad Politecnica de Madrid Fluid Dynamics Group. Fourth-order moment interrelations formed by invoking …
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Hand gesture recognition for multimedia applications
… descriptor. A new approach utilising the Zernike Velocity Moments (ZVMs, first introduced by Shutler and Nixon [1,2]), is examined on hand gestures. Results obtained using the ZVMs as spatial-temporal descriptor are compared to an HMM with Zemike moments (ZMs). Manually isolated hand gestures are …
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Turbulence structure of a model seagrass meadow
… to investigate the effect of water depth and velocity variations during a tidal cycle on the mean and turbulent velocity fields in and above the vegetation layer. The principal goal was to characterize the turbulence structure of a depth-limited canopy, a gap that presently exists in the …
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Development of a 20-moment Polydisperse and Polykinetic Spray Model Coupled With a Surface Density Approach for the Modelling of the Dense and Disperse Liquid Spray Regimes
… spray quantities describing the droplet size/velocity distribution and size-velocity correlations evolve according to a system of first-order hyperbolic equations. The developed model is an extension of the 10-moment monodisperse anisotropic Gaussian closure from kinetic theory, where …