Search results
Results from the WOW.Com Content Network
Fetch length, along with the wind speed (wind strength), and duration, determines the size of waves produced. If the wind direction is constant, the longer the fetch and the greater the wind speed, the more wind energy is transferred to the water surface and the larger the resulting sea state will be. [ 4 ]
A ship designer can find the most extreme sea states (extreme values of H 1/3 and T 1) from the joint frequency table, and from the wave spectrum, the designer can find the most likely highest wave elevation in the most extreme sea states and predict the most likely highest loads on individual parts of the ship from the response amplitude ...
Bushmeat is meat from wildlife species that are hunted for human consumption. Bushmeat represents a primary source of animal protein and a cash-earning commodity in ...
H s is the design significant wave height at the toe of the structure (m) Δ is the dimensionless relative buoyant density of rock, i.e. (ρ r / ρ w - 1) = around 1.58 for granite in sea water; ρ r and ρ w are the densities of rock and (sea)water (kg/m 3) D n50 is the nominal median diameter of armor blocks = (W 50 /ρ r) 1/3 (m)
The parameter used to describe breaking wave types on beaches; or wave run-up on – and reflection by – beaches, breakwaters and dikes. [4] [5] [6] Iribarren Number (ξ 0) as a function of wave height with constant beach steepness of 7.5 degrees. Iribarren's work was further developed by Jurjen Battjes in 1974, who named the parameter after ...
The sine wave is a specific case of a periodic wave. In random waves at sea, when the surface elevations are measured with a wave buoy , the individual wave height H m of each individual wave—with an integer label m , running from 1 to N , to denote its position in a sequence of N waves—is the difference in elevation between a wave crest ...
Here ψ is the angle between the path of the wave source and the direction of wave propagation (the wave vector k), and the circles represent wavefronts. Consider one of the phase circles of Fig.12.3 for a particular k , corresponding to the time t in the past, Fig.12.2.
Wentworth grain size chart from United States Geological Survey Open-File Report 2006-1195: Note size typos; 33.1mm is 38.1 & .545mm is .594 Beach cobbles at Nash Point, South Wales Grain size (or particle size ) is the diameter of individual grains of sediment , or the lithified particles in clastic rocks .