ME 495 – Homework 10
Summer 2019
Submission Deadline: 23rd July (Tuesday) by 5 PM
Note: Write your name at the top right-hand corner of the first page of your homework.
Problem 1:
Problem 2:
Problem 3:
Problem 4: For a smooth pipe, the friction factor (f) is:
f = (0.79 ln Re – 1.64)-2
What is the uncertainty of f ? Let ρ = 0.95 ± 0.1 kg/m3, U = 1 ± 10% m/s, D = 0.5 ± 0.025 m and
μ= 184.6 x 10-7 ± 5% N.s/m2
Problem 5:
Use Voltage as 100 V for all the cases. Part 1 was solved in class and you do not need to do this.
Only solve for Part 2 and discuss how it’s different from Part 1. Use the method discussed in class.
.
ME 495 – Homework 10 Summer 2019 Submission Deadline.docx
1. ME 495 – Homework 10
Summer 2019
Submission Deadline: 23rd July (Tuesday) by 5 PM
Note: Write your name at the top right-hand corner of the first
page of your homework.
Problem 1:
Problem 2:
Problem 3:
Problem 4: For a smooth pipe, the friction factor (f) is:
f = (0.79 ln Re – 1.64)-2
What is the uncertainty of f ? Let ρ = 0.95 ± 0.1 kg/m3, U = 1 ±
2. 10% m/s, D = 0.5 ± 0.025 m and
μ= 184.6 x 10-7 ± 5% N.s/m2
Problem 5:
Use Voltage as 100 V for all the cases. Part 1 was solved in
class and you do not need to do this.
Only solve for Part 2 and discuss how it’s different from Part 1.
Use the method discussed in class.
