8.4.A—Describe the flow of an incompressible fluid through a cross-sectional area by using mass conservation

Describe the flow of an incompressible fluid through a cross-sectional area by using mass conservation.

• A difference in pressure between two locations causes a fluid to flow.
  • i. The rate at which matter enters a fluid-filled tube open at both ends must equal the rate at which matter exits the tube.
  • ii. The rate at which matter flows into a location is proportional to the crosssectional area of the flow and the speed at which the fluid flows. Derived equation: V =Avt
• The continuity equation for fluid flow describes conservation of mass flow rate in incompressible fluids. Relevant equation: Av11 =Av22 TOPIC 8.4 Fluids and Conservation Laws