The travel of water - pushing into the vortex
Kids' Zone · Interactive
- DimensionsSubject to on-site plan
- PresentationInteractive
- PricingQuoted by manufacture spec
Purpose & Scientific Principle
The exhibits are designed to help children understand the relevant theories of vortices. Shoot the ball from a low place to a high vortex, observe the trajectory of the ball in the vortex, and understand the characteristics and related applications of the vortex. Improve children's observation and thinking ability.
How to Operate
The exhibits consist of water spray guns, step tracks, and vortex buckets.
The audience uses a water gun to drive the small ball into the hole. The motor-driven step device lifts the small ball step by step and sends it into the vortex. Since the flow speed is greater and the pressure is smaller towards the middle of the vortex, the surrounding water will push the small ball to the center of the vortex. The small ball comes out of the hole in the middle of the vortex device and is discharged back to the water surface with the water flow. The discharged water drives the water wheel to rotate.
Due to the geostrophic deflection force, when an object moves perpendicular to the earth's latitudes on the earth's surface, the linear speed of the earth's rotation changes with the change of latitude. Due to inertia, the object will tend to maintain the direction of movement at the original speed relative to the ground. This is called the geostrophic deflection force. In the northern hemisphere, objects move from south to north, and the linear velocity of the earth's rotation becomes smaller (the linear velocity is maximum at the equator). The object maintains a constant linear velocity due to inertia, so it deflects eastward, which is to the right in terms of relative motion direction. When moving from north to south, the linear speed of the earth's rotation increases, so it deflects westward, and the relative motion direction is also to the right. Therefore, when objects in the northern hemisphere move, they are uniformly affected by the geostrophic deflection force to the right. In the same way, objects moving in the southern hemisphere experience a uniform geostrophic force to the left. Now let's look at the vortex generated by this water flow. If there is no geostrophic deflection force, then the water flow will flow in along radial lines starting from the center, and the direction of the inflow velocity will point to the center.
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