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

Labour-based and appropriate technology, Use of Labour-based and Appropriat...

Use of Labour-based and Appropriate Technology: The construction and maintenance of rural roads can generate a good level of employment. Hence, the technology used should be

Explain about napthenic acid corrosion, Q. Explain about Napthenic Acid Cor...

Q. Explain about Napthenic Acid Corrosion? Some crude oils contain napthenic acids, which, at elevated temperatures, may contribute to more active corrosion with or without the

Stress, Difference between direct and shear stress

Difference between direct and shear stress

Turbines, Illustrate governing Mechanism of Francis turbine.

Illustrate governing Mechanism of Francis turbine.

Define cam operated clamp, Define Cam Operated Clamp 1. The cams operat...

Define Cam Operated Clamp 1. The cams operated clamp find wide application and are fast and positive in action. 2. These should not be used where vibrations are present or w

Resistor-fundamentals of electricity , Resistor: The wire that oppose...

Resistor: The wire that opposes (resists) the flow of current through it by virtue of its property is called resistor. This property is known as resistance. The resistance is

Legal aspects of entrepreneurship development , Legal Aspect :  Few simple ...

Legal Aspect :  Few simple steps to take care of legal aspects of setting up a business are to register your unit with concerned organisation, check out the labour laws that would

Electron beam welding-aerospace applications, AEROSPACE APPLICATIONS   ...

AEROSPACE APPLICATIONS   The need for EBW as a critical fabrication process in realising elements and assemblies for spacecraft and launch vehicle programmes due to the foll

Determine the moment of resistance of the flitched beam, Determine the mome...

Determine the moment of resistance of the flitched beam: A flitched beam consists of a wooden beam of width 120 mm & depth 250 mm & mild steel plates of thickness 10 mm & widt

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