Ask Question, Ask an Expert


Ask Mechanical Engineering Expert

problem 1:

a) A flow field is represented by a velocity potential function as given below:

A= c(2x2-3y2)

Verify whether it is a valid function or not? If valid, then find out the corresponding stream function.

b) Define:

i) Stream function and

ii) Velocity potential function.

Describe their physical and mathematical concepts. Also list out the properties.
problem 2:

a) Cite any six exs where surface tension e_ect play a prominent role.

b) Derive the dimensions of:

i) Dynamic viscosity and Kinematic viscosity. Also obtain their units in MKS, FPS and SI systems.
problem 3: Petrol of specific gravity 0.8 is owing through a pipe inclined at 300 to the horizontal in upward direction. A venturimeter is fitted in this 25 cm diameter pipe; the ratio of areas of main and throat is 4 and the throat is at a distance of 1.2 m from inlet along its length.

The U- tube differential manometer connected to the inlet and throat section registers a steady reading of 5 cm of mercury; the tubes above the mercury being full of water. Find the discharge and pressure difference in kPa between the throat and entrance section. The meter has a discharge coefficient of 0.95 and relative density of mercury is 13.6.
problem 4:

a) Distinguish between rotational and irrotational flows.

b) Show that the velocity components given by u = 2x/t v = -y/t and w = z/t represent a possible fluid flow. Mention whether the flow is rotational or not.

problem 5:

a) State Newton's law of viscosity and give any four exs of its applications.

b) An oil of viscosity 8 poise is used for lubrication between a shaft and sleeve. The diameter of shaft is 0.4 m and it rotates at 180 rpm. find out the horsepower lost in the oil for a sleeve length of 120 mm. The thickness of the oil film is 1.3 mm.
problem 6:

a) A rectangular plate 0.5m wide and 1.6m deep is submerged in water in an inclined position. The maximum and minimum depths of the plate are 1.8m and 0.75m from the free surface. find out the hydrostatic force on one face of the plate, and the depth of centre of pressure.

b) A triangular plate of base width 3m and height 4m is immersed in water with its plan making an angle of 500 with the free surface of water. Determine the hydrostatic pressure force and the position of centre of pressure when the apex of the triangle lies 5m below the free water surface.

Mechanical Engineering, Engineering

  • Category:- Mechanical Engineering
  • Reference No.:- M93480

Have any Question? 

Related Questions in Mechanical Engineering

Experiment title heat engine experimentacademic in charge

Experiment title: Heat Engine Experiment Academic in charge of experiment: Experiment duration: The standard scheduled time for this experiment is 90 minutes for 3 groups (A, B, C) of 6 students. Each group undertakes ex ...

As an expert in computer security you have been approached

As an expert in computer security, you have been approached by an organization that campaigns for the rights of torture victims and have been asked to help the organization gain unauthorized access to the computer system ...

While brewing beer a delinquent professor finds it

While brewing beer, a delinquent professor Finds it necessary to rapidly cool the "wort," a fermented malt mixture, from near the boiling point of water to room temperature. A 5.7 L sample of the wort at 363 K is combine ...

Q1 a list three classical methods of optimization in

Q1) a) List three classical methods of optimization in engineering design. b) Describe the type of finite elements used to solve 3 dimensional problems in solid mechanics. Supply examples of the application. c) Describe ...

1 the practical depth limit for a suited diver is about 185

1. The practical depth limit for a suited diver is about 185 m. What is the gage pressure in sea water at that depth? The specific gravity of sea water is 1.025. 2. Matter is attracted to the center of Earth with a force ...

A for the system of fig 347 the resistance of each line

a. For the system of Fig. 3.47, the resistance of each line cannot exceed 0.006 Ω, and the maximum current drawn by the load is 110 A. What gage wire should be used? b. Repeat (a) for a maximum resistance of 0.003 Ω, d = ...

1 a differential manometer is used to measure the pressure

1. A differential manometer is used to measure the pressure change caused by a flow constriction in a piping system as shown. Determine the pressure difference between points A and B in psi. Which section has the higher ...

A closed cylindrical tank of length l radius r and wall

A closed cylindrical tank of length L, radius R, and wall thickness t contains a liquid at pressure p. If a hole is suddenly made in the cylinder, determine a. How much the tank radius R changes b. How much the tank leng ...

1 by how much will the clamping force on the joint be

1. By how much will the clamping force on the joint be reduced? Sketch the new joint diagram, assuming maximum initial preload? Compute the estimated maximum bolt tension and minimum clamping force under the 3,000 lbs ex ...

He 20kg wheel has a radius of gyration about its

he 20@kg wheel has a radius of gyration about its centerOofkO = 300 mm. When the wheel is subjected to the couple moment, it slips as it rolls. Determine the angular acceleration of the wheel and the acceleration of the ...

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro