The average velocities of water flowing steadily through the nozzle are indicated. If the nozzle is glued onto the end of the hose, outline the control volume to be the entire nozzle and the water inside it. Also, select another control volume to be just the water inside the nozzle. (Figure 1) 8 m/s 2.5 m/s For the control volume containing entire nozzle and the water inside it indicate the open control surfaces. Drag the appropriate labels to their respective targets. Note: not all targets will be used. Reset Help Outlet control surface Inlet control surface 2 For the control volume containing just the water inside the nozzle indicate the open control surfaces. Drag the appropriate labels to their respective targets. Note: not all targets will be used. Reset Help Outlet control surface Inlet control surface Identify whether or not the local and convective changes occur. Assume water to be incompressible. O For both cases the local changes do not occur, while the convective changes at each of the open control surfaces take place. O For both cases the local changes occur, but the convective changes at each of the open control surfaces do not occur. For both cases the local changes do not occur, the convective changes take place only for the control volume at each of the open control surfaces containing just the water inside the nozzle. For both cases the convective changes take place, for the control volume containing the entire nozzle and the water inside it the local changes at each of the open control surfaces are presented as well.

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Fluid Dynamics

The study of the flow of gases and liquids, usually in and around solid surfaces, is known as fluid dynamics in physics and engineering. Fluid dynamics, for example, can be used to evaluate the movement of air through an airplane wing or the surface of a vehicle. It can also be used in ship design to increase the speed at which ships pass through water.