Dunkirk: Where History Happened. We visit 10 places connected with the remarkable evacuation of the British Expeditionary Force from northern France in 1940. This feature was first published in the April 2010 edition of BBC History Magazine. Tuesday 25th May 2010.
The seepage velocity is less than the actual flow rate of the liquid or gas in the pores because the fluid moves only through the portion of the cross-sectional area S that is occupied by the pores.
Linear Velocity Definition. The velocity or the linear velocity of an object is the time rate of change of linear displacement of the object. It is also defined as the speed of an object in a given direction. The linear velocity can be of two types depending on the motion in which it is evolved: Uniform Velocity: An object is said to be moving with a uniform velocity if it undergoes equal displacements in equal interval of time howsoever small these intervals may be.