Numerical simulation of transom-stern waves

The flow field generated by a transom-stern hullform is a complex, broad-banded, three-dimensional phenomenon marked by a large breaking wave. This unsteady multiphase turbulent flow feature is difficult to study experimentally and simulate numerically. The results of a set of numerical simulations, which use the Numerical Flow Analysis (NFA) code, of the flow around the Model 5673 transom stern at speeds covering both wet- and dry-transom operating conditions are shown in the accompanying fluid dynamics video. The numerical predictions for wet-transom and dry-transom conditions are presented to demonstrate the current state of the art in the simulation of ship generated breaking waves. The interested reader is referred to Drazen et al. (2010) for a detailed and comprehensive comparison with experiments conducted at the Naval Surface Warfare Center Carderock Division (NSWCCD).Comment: Fluid Dynamics Video for 2010 APS Division of Fluid Dynamics Gallery of Fluid Motion include

Cape Hatteras Flyby 2

A flyby from Albemarle Sound to the Cape Hatteras National Seashore in North Carolina, using Landsat data Educational levels: Undergraduate lower division, Undergraduate upper division, Graduate or professional

September Monthly Sea Ice Concentrations for 1979-1998 (Purple)

Arctic sea ice concentrations in September of each year from 1979 through 1998 Educational levels: Undergraduate lower division, Undergraduate upper division, Graduate or professional

Mars Southern Hemisphere Rotation in False Color from MOLA

Blue represents low topography and red or white represent areas of high topography. Educational levels: Undergraduate lower division, Undergraduate upper division, Graduate or professional

Landsat 7 Rotation around Washington DC

A complete rotation around Washington DC using a Landsat 7 image acquired on May 11, 1999 Educational levels: Undergraduate lower division, Undergraduate upper division, Graduate or professional

NSIPP: Ray-casted Global Sea Surface Temperature

A rotating cartesian projection of the Earth showing three-dimensional sea surface temperature data from the NSIPP global climate model. High temperatures are in red. Educational levels: Undergraduate lower division, Undergraduate upper division, Graduate or professional

NSIPP: North America Soil Moisture

An animation of soil moisture from December 1999 through June 2000 for North America from the NSIPP global climate model Educational levels: Undergraduate lower division, Undergraduate upper division, Graduate or professional

NSIPP Global Water Vapor, Soil Moisture, and Sea Surface Temperature Anomaly

An animation of global sea surface temperature anomaly, soil moisture, and atmospheric water vapor from June 2000 through June 2001 from the NSIPP global climate model Educational levels: Undergraduate lower division, Undergraduate upper division, Graduate or professional

Landsat 7 Side-by-side Comparison of a Zoom Down to Washington DC

Side-by-side comparison of 30 meter resolution data on the left with 15 meter resolution data on the right, in a zoom down of the DC area from Landsat 7 data acquired on May 11, 1999 Educational levels: Undergraduate lower division, Undergraduate upper division, Graduate or professional

Greenland: Panning Over Ice Sheets

Shot in Wide-Screen Educational levels: Undergraduate lower division, Undergraduate upper division, Graduate or professional