Tank drainage-apparent viscosity-laminar flow, Mechanical Engineering

Assignment Help:

 Tank Drainage

A large open vertical tank has three small, smooth, well-rounded orifices spaced equidistantly at ¼h, ½h, ¾h up from the bottom of the tank (Fig. Q1). Water is continuously added to the tank, and an overflow tube maintains the water level constant at h. Derive a relationship between the places where the three jets hit the ground.

                                      854_Tank Drainage.png

                                                                                           Figure Q1

Q.2      Apparent Viscosity

Rheological data for a test fluid from a rheometer is presented in Table Q2. The data was obtained by first increasing the shear rate up to 200 s-1 and measuring the shear stress (1.) and then decreasing the shear rate and measuring the new stress stress (2.). Plot the data for shear stress with shear rates. On the same graph, determine and plot the apparent viscosities with shear rate. Describe accurately this type of fluid. Explain why the profiles are not identical.

                                                                                                      Table Q2

Shear rate s-1

1. Shear stress Nm-2

2. Shear stress Nm-2

5

116

74

18

255

203

32

353

304

45

440

392

59

520

474

72

598

548

86

674

617

99

747

684

113

817

750

126

880

812

139

948

874

153

1008

937

166

1063

999

180

1114

1065

193

1160

1133

200

1181

1172

Q.3      Laminar Flow

A process uses an oil of density 800 kg.m-3 and viscosity 80 mPa.s at a rate of 0.72 m3.h-1. The feed pipe splits into two smaller pipes and both discharge freely into the process. One pipe has an inner diameter of 5.0 cm and length of 20 m while the other has an inner diameter of 2.5 cm and length of 10 m.

1.    Determine the rate of flow in each pipe.

2.    Confirm laminar flow in each pipe by calculating the Reynolds number.


Related Discussions:- Tank drainage-apparent viscosity-laminar flow

Find out maximum bending stress induced in beam, Q. A beam made of C.I. hav...

Q. A beam made of C.I. having section of 50mm external diameter and 25 mm internal diameter is supported at 2 points 4 m apart. The beam carries concentrated load of 100N at the ce

Group technology, comparing the different coding systems ?

comparing the different coding systems ?

what do you mean by ignition system?, (a) What do you mean by ignition sys...

(a) What do you mean by ignition system? Write down its functions. (b) Briefly describe the working principle of ignition system. (c) How is energy generated inside the batte

Meaning, What different of blow hole and pin hole

What different of blow hole and pin hole

Corrosion resistance of tantalum, Q. Corrosion resistance of tantalum? ...

Q. Corrosion resistance of tantalum? Tantalum is readily attacked by strong alkalis, even at room temperature, and therefore, is not suitable for use in processes where the pH

What are the limitations of reversed carnot cycle, (a) What are the limitat...

(a) What are the limitations of Reversed Carnot Cycle to be used in practice for refrigeration purposes? Also derive the mathematical expression of COP for reversed carnot cycle.

Relative motion, the jet transport B is flying at the velocity of 600km/h w...

the jet transport B is flying at the velocity of 600km/h when a smaller aircraft A passes underneath the transport headed in the 60 degree direction. To passengers in B, however ap

GOVERNORS, Explain Wilson HArtnell Governor

Explain Wilson HArtnell Governor

High temperature materials in boilers, Q. High temperature materials in Boi...

Q. High temperature materials in Boilers? A thin refractory layer between the shield and boiler tube is recommended in areas subject to moderate temperatures and levels of corr

Cam, Ask question explin opiz code #Minimum 100 words accepted#

Ask question explin opiz code #Minimum 100 words accepted#

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd