Solving a T-Shaped Tube Puzzle: What Happens When Air Is Blown?

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SUMMARY

The discussion centers on the behavior of liquid in a T-shaped tube when air is blown through it. The consensus is that the liquid level can either rise, fall, or remain unchanged depending on the airflow's intensity, confirming option E as the correct answer. The reasoning involves the principles of fluid dynamics and pressure differentials, particularly how air movement affects liquid levels in connected tubes. The analogy to a barometer illustrates the impact of air pressure on liquid behavior in the tube.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Knowledge of pressure differentials in liquids
  • Familiarity with barometric concepts
  • Basic grasp of T-shaped tube configurations
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  • Research the Bernoulli's principle and its applications in fluid dynamics
  • Explore the concept of pressure differentials in connected fluid systems
  • Study the behavior of gases and liquids in varying pressure environments
  • Investigate real-world applications of T-shaped tube configurations in engineering
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Students and professionals in physics, engineering, and fluid mechanics who are interested in understanding fluid behavior in response to pressure changes.

bobash69x2
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Well, i have been doing some fluids problems, and i came upon this. It has me stuck

A T-shaped tube with a constriction is inserted in a vessel containing a liquid. What happens if air is blown through the tub from the left?

A) The liquid level in the tube rises above the surface of the liquid surrounding the tube.

B) The liquid level in the tube falls below the level of the surrounding liquid.

C) The liquid level in the tube remains where it is.

D) The air bubbles out at the bottom of the tube.

E) Any of the above, depending on how hard the air flows.


I figured E, but i can't figure out how to justifiy my reasoning.

P.S. If you can't picture the problem, imagine a Barometer with a horizontal tube on top of the barometeric tube. (that didnt make any more sense than the original).
 
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Since the air is moving over the opening of the vertical tube it will lower the air pressure in it, irrespective of the constriction in the horizontal section.
 

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