Styrofoam object- rise or sink?

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SUMMARY

The discussion centers on the behavior of a 9-inch diameter styrofoam ball in a 30-foot pipe with a constant water flow. The ball will rise due to buoyancy, as its density is less than that of water, despite being 1 inch underwater. The downward flow of water will indeed slow the ball's ascent, but it will still rise. The estimated speed of the ball will be less than in a static water column due to the opposing current created by the water flowing out of the basin.

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  • Understanding of buoyancy principles and Archimedes' principle
  • Knowledge of fluid dynamics, particularly flow rates and pressure differentials
  • Familiarity with the concept of density and its role in object behavior in fluids
  • Basic physics of motion in fluids, including drag forces
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  • Study "fluid dynamics and flow rates" to understand how they affect object movement
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i have a 30 ft pipe - 10" diameter. there is a constant water flow at the top, keeping the water level constant ( the pipe is always full to the top). at the bottom the water just flows out of the basin and away. the pipe is is just 1" underwater in the pool underneath.
the yellow object is a styrofoam ball - diameter 9" so it will easily fit into the pipe.
will the ball rise up due to buoyancy and density differencial, or will the pressure from the water column above supress these forces and keep it at the bottom.
if the ball does rise, will its speed be slowed by the downward flow of water around it?
what will its estimate spped be, compared to the clasiccla setup where an object is released in a static water column, closed at the bottom .
 
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