CHP 2 - Countinued

Slide 1

A small force F1 applied to a piston with a small area produces a much larger force F2 on the larger piston. This allows a hydraulic jack to lift heavy objects.

Pankaj ChhabraFluid mechanics




Pankaj ChhabraFluid mechanicsTypes of Pressures


Pvac=Patm - PabsPankaj ChhabraFluid mechanicsMeasurement of pressureManometersMechanical gauges Measures pressure in a fluid by balancing the column of fluid by same or other column of fluid Measures pressure in a fluid by balancing the column of fluid by Spring or dead weight Simple manometers Piezometer U tube manometer Single Column manometerDifferential manometers Diaphragm pressure guage Bourdan tube pressure guage Dead-weight pressure guage Bellows pressure guage Pankaj ChhabraFluid mechanicsstatic forces on surfaces Isobaric / Equipotential surfacesHaving same pressure at all coordinates Total PressureCentre of pressure (h*)Vertical surfacesHorizontal surfacesInclined surfacesCurved surfacesPankaj ChhabraFluid mechanics

Vertical surfaces submerged in fluid

a) Total pressure


Where IG is moment of inertia of area about an axis passing through C.G. of the area and parallel to the free surface of liquidPankaj ChhabraFluid mechanics






CHP 2 - Countinued

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