A 4-in-ductile iron pipe carries
The flow is laminar or turbulent.
Answer to Problem 8.1PP
The flow is laminar
Explanation of Solution
Given information:
The diameter of the ductile iron pipe is
Write the expression for Reynolds number.
Here, Reynolds number is
Write the expression for the area of the pipe.
Here, area of the pipe is
Write the expression for velocity..
Here, volume flow rate is
Calculation:
Substitute
Substitute
Refer to Appendix-A, "Properties of Liquid" at
Substitute
Since Reynolds number is
Conclusion:
The flow is laminar.
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