Statics of Fluids

Abstract

In a static fluid system there is no relative motion between fluid particles hence there are no shear surface forces. The only forces present are normal surface forces due to pressure and body forces due to gravity. The relationships obtained for a static fluid also apply to a system moving with constant velocity because there are no additional forces involved. If the system is subjected to constant acceleration then the relationships are modified due to inertia body forces but again there is no relative motion between fluid particles.