Added mass fluid quasi-momentum. Unsteady forces due to a change of the relative velocity of a body submerged in a fluid can be divided into two parts: the virtual mass effect and the Basset force. The origin of the force is that the fluid will gain kinetic energy at the expense of the work done by an accelerating submerged body. It can be shown that the virtual mass force, for a spherical particle submerged in an inviscid, incompressible fluid is where bold symbols denote vectors, formula_2 is the fluid flow velocity, formula_3 is the spherical particle velocity, formula_4 is the mass density
Velocity (newspaper) in Louisville, and gay life. Regular weekly features included "The Bar Hopper", in which a local tavern was profiled; "The Party Crasher", a photo-story from the weekend's parties; and "What I'm Into", a mini-profile of a local person. "Velocity" was discontinued during a round of budget cuts by Gannett. Velocity (newspaper) Velocity was a free, weekly newspaper published between December 3, 2003 and June 15, 2011, by "The Courier-Journal" of Louisville, Kentucky. The full-color tabloid was distributed at 1,800 locations in a 13-county area in Kentucky and Southern Indiana. "Velocity" was widely seen as an attempt by the "Courier-Journal" and