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

Need of a spectrophotometer, Need of a spectrophotometer: The specific...

Need of a spectrophotometer: The specific instructions will differ with other models, but the principles remain. 1. The instrument must have been warm for at least 15 min.

Short-term scheduling and control, Short-Term Scheduling And Control Th...

Short-Term Scheduling And Control The major objective at this stage is to make sure the efficient and smooth operation of the system in the event of unforeseen disturbances. Th

Explain types of gas welding process, Types of Gas Welding Process Gas ...

Types of Gas Welding Process Gas welding includes all those welding processes in which gas flame is used as a heat source for melting metals. It is further divided into three m

Determine the percentage savings in the material, Determine the percentage ...

Determine the percentage savings in the material: A hollow shaft containing an inside diameter 0.5 times the outer diameter is to replace the solid shaft of the similar materi

Roller spot welding, Roller Spot Welding In this process, a series of ...

Roller Spot Welding In this process, a series of intermittent spot welds are made using wheels or rollers as electrodes. The rollers are power driven and are stopped while ind

Lubrcants, what is the difference between mineral and vegetable oils in ter...

what is the difference between mineral and vegetable oils in terms of oiliness and oxidization?

What are the basic different air-fuel mixture, Describe carburetion. What a...

Describe carburetion. What are the basic different air-fuel mixture on which an engine can be operated ? Write a short note on sterling cycle. In an engine working on inlet pres

Hierarchical system structure, Ask question #Minimum 100 words awrite short...

Ask question #Minimum 100 words awrite short note on the the hierarchical system structure involving various level

Auto - associative network, We seek to test if an auto-associative network ...

We seek to test if an auto-associative network is capable of recalling certain memories. Here you will test if patterns can be completed or recovered. You are given a single patter

Maximum stress failure criterion, a) Determine the value of σ 0 to cause f...

a) Determine the value of σ 0 to cause failure when θ=30°, according to the maximum stress failure criterion.  Consider both σ 0 > 0 and σ 0 e.g. "failure in longitudinal tens

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