EM 1110-2-1100 (Change 1)
31 Jul 03
V
VALLEY
An elongated depression, usually with an outlet, between BLUFFS or between ranges of hills or mountains.
VALLEY, SUBMARINE
A prolongation of a land valley into or across a continental or insular shelf, which generally gives evidence of
having been formed by stream erosion.
VELOCITY OF WAVES
The speed at which an individual wave advances. See WAVE CELERITY.
VELOCITY PROFILE
The velocity gradient within the BOTTOM BOUNDARY LAYER, displayed as a graph of height above the bed
against the velocity of the flow.
VISCOSITY (or internal friction)
That molecular property of a fluid that enables it to support tangential stresses for a finite time and thus to resist
deformation. Resistance to flow.
VOID RATIO
For a sediment sample, defined as the ratio of the volume of the voids to the volume of the solids, Q = Vv/Vs.
Typical values of Q for natural sands range from 0.5 to 0.8, for cohesive soils from 0.7 to 1.1.
Appendix A Glossary of Coastal Terminology
A-87
Previous Page
