6. Fluid mechanics: fluid statics; fluid dynamics

1/966. Fluid mechanics : Fluid statics; Fluid dynamics (internal flows, external flows)Ron Zevenhoven bo Akademi UniversityThermal and Flow Engineering/ V rme- och str mningstekniktel. 3223 ; grunder ( PTG ) Introduction to Process bo Akademi University | Thermal and Flow Engineering | 20500 Turku | Finland2 Fluid statics bo Akademi University | Thermal and Flow Engineering | 20500 Turku | Finland3/96 Fluid statics, static pressure/1 Two types of forcesact on a Fluid volumeelement: surface (pressure) forcesand body(gravitational) forces: see Figure Pressure(a scalar!) is defined as surface force / area, for examplepb= Fb/ (d w) = p @ z = z1 Picture: KJ05 Fluid volume h d wwith density and mass m = h d w z = z1 In engineering applications, a Fluid (sv: Fluid )is a liquid or a gas The behaviour of stationary fluidsis described by Fluid statics A liquidin a container forms a layer with a distinct surface, and exerts forces on the walls supporting it, while a gaswill fill the whole container.

A closed tube filled with mercury (Hg) is quickly put upside-down in an open container filled with Hg Gravity causes the Hg level in the tube to fall, but no air can enter the tube. The small gas volume trapped is Hg vapour at ... If FB = weight, the will float in suspension

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  Fluid, Dynamics, Static, Mercury, Mechanics, Float, Fluid mechanics, Fluid statics fluid dynamics

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