Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Mechanical Engineering Expert

problem1) Velocity profile for laminar flow in round pipe is given by the equation u(r)=umax[1−(r/R)2] where Umax is the centerline velocity, R is the pipe radius and r is the radial distance from the pipe centerline.

1298_Laminar flow.jpg


a) Determine the velocity gradient at the pipe wall? Note that normal distance from the pipe wall is y=R-r, thus dy=-dr and du/dy=-du/dr.

b) what is the shear stress at pipe centerline?

c) Demonstrate that the velocity gradient, and as the shear stress varies linearly from zero at the pipe centerline to a maximum at the pipe wall.

problem2) Determine the equal annual payment series that will be equivalent to the following increasing series of payments if the interest rate is 12%

(a) compounded annually;

(b) compounded continuously.

$600 at the end of the first year
$800 at the end of the second year
$1,000 at the end of the third year
$1,200 at the end of the fourth year
$1,400 at the end of the fifth year
$1,600 at the end of the sixth year
$1,800 at the end of the seventh year

Mechanical Engineering, Engineering

  • Category:- Mechanical Engineering
  • Reference No.:- M93984

Have any Question? 


Related Questions in Mechanical Engineering

Linear antenna array linear antenna array an array antenna

Linear antenna array. Linear antenna array. An array antenna is made of six identical elements, each a half-wavelength dipole, and is fed with identical currents, all in phase. Spacing of the elements is one-half wavelen ...

Application parallel plate resonator a parallel plate

Application: Parallel plate resonator. A parallel plate waveguide is shorted at two locations as shown in Figure 17.32. The distance between shorts is d. Calculate the resonant frequencies of the shorted guide, assuming ...

Derive an expression for the electromagnetic torque in the

Derive an expression for the electromagnetic torque in the arbitrary reference frame variables for the machine in Problem 10. Problem 10 An induction machine has a 3-phase stator winding as shown in Figure 6.2-1 and a tw ...

In a lead-screw unit the coefficient of friction mu was

In a lead-screw unit, the coefficient of friction μ was found to be greater than tan α, where α is the helix angle. Discuss the implications of this condition.

A weather balloon is constructed of a flexible material

A weather balloon is constructed of a flexible material such that the internal pressure of the balloon is always 10 kPa higher than the local atmospheric pressure. At sea level the diameter of the balloon is 1 m, and it ...

Find out the following from your classmatesa who has

Find out the following from your classmates: a) who has traveled to the most countries of the world b) who has gone to a recent concert c) who wants to follow your same career path d) who thinks that communication is cri ...

Mechanical behavior of materials assignment-q1 using the

Mechanical Behavior of Materials Assignment- Q1. Using the figure on the right, perform the following a) Obtain approximate values of fracture toughness K Ic and yield strength σ o for A533B steel at temperatures of - 15 ...

Compare the properties of the half-wavelength dipole and

Compare the properties of the half-wavelength dipole and those of the Hertzian dipole. Why is the half-wavelength dipole so much better?

Application 3lambda4 transformer a lossless transmission

Application: 3λ/4 transformer. A lossless transmission line with characteristic impedance Z0 transfers power to a load Zl(real). To match the line, a matching section is connected as shown in Figure 15.39. At what distan ...

A list of activities that are required to complete a

A list of activities that are required to complete a project is shown below. Draw a CPM precedence diagram for the project and calculate the project schedule. Provide the schedule in a tabular form, showing earlynate sta ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate