| Fluid Statics | |||||||||
Hydrostatic force on a Curved Submerged surface |
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| On a curved submerged surface as shown in Fig. L-9.3, the direction of the hydrostatic pressure being normal to the surface varies from point to point. Consider an elementary area |
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The total hydrostatic force can be computed as |
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| Fig. L-9.3: Hydrostatic force on a curved surface | |||||||||
Note that since the direction of the pressure varies along the curved surface, we cannot integrate the above integral as it was carried out in the previous section. The force vector in which |
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in the curved submerged surface in a fluid at rest. The pressure force acting on the element is
is expressed in terms of its scalar components as 
represent the scalar components of F in the x , y and z directions respectively.