The new bolt force and the head loss.
Answer to Problem 3.110P
The new bolt force is
The head loss is
Explanation of Solution
Given information:
The diameter of nozzle at section 1 is
Write the expression for area of section 1.
Here, diameter at section 1 is
Write the expression for area at section 2.
Here, diameter at section 2 is
Write the expression for velocity at section 1 using continuity equation.
Here, velocity at section 1 is
Write the expression for Bernoulli’s Equation at inlet and outlet without losses.
Here, pressure at inlet is
Write the expression for mass flow rate.
Write the expression for force on bolt using momentum principle.
Write the expression for Bernoulli’s Equation considering head loss.
Here, the head loss is
Calculation:
Substitute
Substitute
Substitute
Substitute
Substitute
Substitute
Substitute
Conclusion:
The bolt force is
The head loss is
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Chapter 3 Solutions
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