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Concept explainers
(a)
The pressure at section (2).
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Answer to Problem 3.121P
The pressure at section (2) is
Explanation of Solution
Given information:
The diameter of the tube at inlet and outlet in which the fluid is flowing is
Concept Used:
The following figure shows the two sections where we apply Bernoulli equation.
Figure-(1)
Write the expression for specific gas constant for
Here, universal gas constant is
Write the expression for ideal gas equation.
Here, density of the
Write the expression for the hydrostatic formula for section (A) and section (B).
Here, density of water is
Write the expression for the Bernoulli equation at section (1) and section (2).
Here, pressure at section (1) is
Substitute
Write the expression for discharge/flow rate.
Here, the cross-section area of the tube at exit is
Write the expression for cross section area.
Here, diameter of the tube at exit is
Calculation:
Substitute
Substitute
Substitute
Conclusion:
Thus, the pressure at section (2) is
(b)
The volume flow rate of the gas.
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Answer to Problem 3.121P
The volume flow rate of the gas is
Explanation of Solution
Given information:
The diameter of the tube in which the fluid is flowing is
Calculation:
Substitute
Substitute
Substitute
Conclusion:
Thus, the volume flow rate of the gas is
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Chapter 3 Solutions
Fluid Mechanics
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