VELOCITY FIELD UNDER PLUNGING WAVES

Three-dimensional Large Eddy Simulation of air entrainment under plunging breaking waves

The scope of this work is to present and discuss the results obtained from simulating three-dimensional plunging breaking waves by solving the Navier-Stokes equations, in air and water, coupled with a dynamic subgrid scale turbulence model (Large Preprint submitted to Coastal Engineering 23 January 2006 ha l-0 02 94 09 2, v er si on 1 8 Ju l 2 00 8 Author manuscript, published in "Coastal Engin...

Aerodynamics of Low Reynolds Number Plunging Airfoil under Gusty Environment

Abstract It is known that plunging airfoil can produce both lift and thrust with certain combination of plunging amplitude and frequency. Motivated by our interest in micro air vehicles (MAVs), we utilize a NavierStokes equation solver to investigate the aerodynamics of a flapping airfoil. The roles of the plunging and pitching amplitude and frequency, and Strouhal number are studied. For a sym...

The Local Velocity Field

We only see a small fraction of the matter in the universe, but the rest gives itself away by the impact of its gravity. The distortions from pure Hubble flow (or peculiar velocities) that this matter creates have the potential to be a powerful cosmological tool, but are also a nuisance for extragalactic astronomers who wish to use redshifts to estimate distances to local galaxies. We provide a...

determination of velocity of seismic waves and upper crustal velocity model in shiraz seismological network

iran is located between two lithospheric plates (euroasia, arabian) and these two plates converge toward each other with a velocity of 25 mm/yr rate. shortening that produced from this convergence with makran subductin shows faulting and folding in zagros orogenic belt, alborz and kopedagh in north and sliding in sum strike slip faults with north-south trend in central iran. the nw-se trending ...

Direct measurement of ocean waves velocity field from a single SPOT-5 dataset