Question: Water at (10{ }^{circ} mathrm{C}) flows through a smooth (60-mathrm{mm})-diameter pipe with an average velocity of (8 mathrm{~m} / mathrm{s}). Would a layer of rust

Water at $10{ }^{\circ} \mathrm{C}$ flows through a smooth $60-\mathrm{mm}$-diameter pipe with an average velocity of $8 \mathrm{~m} / \mathrm{s}$. Would a layer of rust of height $0.005 \mathrm{~mm}$ on the pipe wall protrude through the viscous sublayer? Justify your answer with appropriate calculations.

Step by Step Solution

★★★★★

3.48 Rating (165 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Engineering Fluid Mechanics Questions!

Jo is about to open a windshield repair stand to operate in a local mall parking lot during the summer. Capital assets will cost $6,500 and have a useful life of 5 years, with no salvage value. The...

Narrowly defining public stock companies in terms of financial performance can lead to Blank______. improved public relations more accurate accounting black swan events more efficient production

Sam had the following sources of income for 2 0 2 2 Dividends $ 1 , 5 0 0 Salary $ 7 0 , 0 0 0 Interest $ 2 , 0 0 0 Net Rental income $ 5 , 0 0 0 bonus $ 1 0 , 0 0 0. What is sam's earned income for...

A single-pass shell and tube heat exchanger (condenser) heats $946 \mathrm{~m}^{3} / \mathrm{h}$ of water from $10{ }^{\circ} \mathrm{C}$ to $38{ }^{\circ} \mathrm{C}$. The heat exchanger uses...

Water at $10{ }^{\circ} \mathrm{C}$ is pumped from a lake as shown in Fig. P8.72. If the flowrate is $0.011 \mathrm{~m}^{3} / \mathrm{s}$, what is the maximum length inlet pipe, $\ell$, that...

Recalculate the problem in P19.5 using a $\Delta T_{\min }=10{ }^{\circ} \mathrm{C}$. Comment on the effect of reducing the minimum temperature difference. [ (a) \(T_{\mathrm{C}_{\text {pinch...

At $40 .^{\circ} \mathrm{C}$ the value of $K_{\mathrm{w}}$ is $2.92 \times 10^{-14}$. a. Calculate the $\left[\mathrm{H}^{+}ight]$and $\left[\mathrm{OH}^{-}ight]$in pure water at \(40 .{...

An engine runs on a rich mixture of methyl and ethyl alcohol and air. At a pressure of 1 bar and $10^{\circ} \mathrm{C}$ the fuel is completely vapourised. Calculate the air-fuel ratio by volume...

A heat exchanger is to be designed to heat raw water by the use of condensed water at $67{ }^{\circ} \mathrm{C}$ and $0.2 \mathrm{bar}$, which will flow in the shell side with a mass flow rate of...

Water flows through a 40 -mm-diameter nozzle meter in a 75 - $\mathrm{mm}$-diameter pipe at a rate of $0.015 \mathrm{~m}^{3} / \mathrm{s}$. Determine the pressure difference across the nozzle if...

The 2008 General Social Survey asked respondents how many sex partners they had in the previous 12 months (variable PARTNERS). Software summarizes the results of the responses by a. Based on the...

A number of technological and cultural developments in recent years have resulted in the emergence of extensive social networks and a large number of avidly followed blogs. Go online to research how...

You have been hired by a health care organization to analyze stroke risk. Attached is a spreadsheet which shows stroke risk, and three factors that may impact that risk: age, blood pressure, and...

Give it some gas! Computers in some vehicles calculate various quantities related to performance. One of these is fuel efficiency, or gas mileage, usually expressed as miles per gallon (mpg). For one...

What pressure ratio would be required to produce a Brayton cycle efficiency of 75 percent?

A gas turbine engine has been developed with a compressor pressure ratio of 6.7. What is the Brayton cycle efficiency of this engine?

Estimate the amount of water to generate H 2 if all the cars in the United States were hydrogen powered fuel cell vehicles. Assume a vehicle fuel economy of 60. miles per kg of hydrogen, total...

You are anticipating receiving a stream of monthly cash flows starting at the end of the fifth month, with the first payment being $ 1 5 0 . Each subsequent monthly cash flow will increase by 0 . 5 %...

Problem 8-09 You are valuing a bank. The bank currently has assets of $305 per share. Five years from now (that is, at the end of five years), you expect their assets per share to be $490. After Year...

The cost of retained earnings True or False: It is free for a company to raise money through retained earnings, because retained earnings represent money that is left over after dividends are paid...