Fluid Dynamics: Pressure, Velocity & Pipe Radius

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SUMMARY

This discussion focuses on fluid dynamics, specifically analyzing the flow of water in a horizontal pipe with variable radius. Given a point in the pipe with a radius of 5.0 cm, a velocity of 0.75 m/s, and a pressure of 250 N/m², the task is to determine the velocity at a point where the pressure is 200 N/m² and to find the corresponding radius. Utilizing Bernoulli's equation for incompressible fluids and the continuity equation, the velocity and radius can be calculated accurately.

PREREQUISITES
  • Understanding of Bernoulli's equation for incompressible fluids
  • Knowledge of the continuity equation in fluid dynamics
  • Familiarity with pressure and velocity relationships in fluid flow
  • Basic algebra and manipulation of equations
NEXT STEPS
  • Study the application of Bernoulli's equation in various fluid flow scenarios
  • Explore the continuity equation and its implications in pipe flow
  • Investigate the effects of varying pipe radius on fluid velocity and pressure
  • Learn about real-world applications of fluid dynamics in engineering
USEFUL FOR

This discussion is beneficial for students studying fluid dynamics, engineers working with fluid systems, and anyone interested in the principles governing fluid flow in pipes.

morgs30
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1.Water flows in a horizontal pipe with variable radius and which produces no drag. At one point in the pipe where the radius is 5.0cm, the flow is noted as .75 m/s at a pressure of 250 N/m^2. a) What is the velocity at a point in the pipe where the pressure is 200 N/m^2? b) What is the radius of the pipe at this point?


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The Attempt at a Solution

 
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Water flows in a horizontal pipe with variable radius and which produces no drag. At one point in the pipe where the radius is 5.0cm, the flow is noted as .75 m/s at a pressure of 250 N/m^2. a) What is the velocity at a point in the pipe where the pressure is 200 N/m^2? b) What is the radius of the pipe at this point?

Bernoulli's for an incompressible fluid:

[tex]P_1 + \frac{v^2_1}{2} = P_2 + \frac{v^2_2}{2}[/tex]

[tex]A_1 v_1 = A_2 v_2[/tex]

You can take over from here.
 
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