Last Updated | S012019 |

### BME206S

Unit Name | Fluid Mechanics |

Unit Code | BME206S |

Unit Duration | 1 Semester |

Award |
Bachelor of Science (Engineering) Duration 3 years |

Year Level | Two |

Unit Creator / Reviewer | N/A |

Core/Sub-Discipline: | Sub-discipline |

Pre/Co-requisites | BSC101C, BSC107C |

Credit Points |
3 Total Course Credit Points 81 (27 x 3) |

Mode of Delivery | Online or on-campus. |

Unit Workload | (Total student workload including “contact hours” = 10 hours per week; 5 hours per week for 24 week delivery) Pre-recordings / Lecture – 1.5 hours Tutorial – 1.5 hours Guided labs / Group work / Assessments – 2 hours Personal Study recommended – 5 hours |

## Unit Description and General Aims

The objective in presenting this unit is to provide students with detailed knowledge of the principles and practices governing the field of fluid mechanics.

The unit will include basic fluid properties and laws governing fluid statics; principal concepts and methods of fluid kinematics and dynamics; fluid system flow analysis utilising the Continuity, Bernoulli, and Momentum equations; flow system analysis including boundary layer concepts and modelling based on dimensional analysis. Students will also undertake a project work involving dimensional analysis and modelling.

At the conclusion of this unit, students will have been imparted with the requisite knowledge to comprehend, distinguish, and apply the principles and practices governing the field of fluid mechanics in their future work.

## Learning Outcomes

On successful completion of this Unit, students are expected to be able to:

- Evaluate fluid properties and make a distinction between ideal, real, Newtonian, and non-Newtonian fluids.

Bloom’s Level 4 - Identify and apply concepts related to statics and fluid flow dynamics.

Bloom’s Level 4 - Perform detailed flow system analysis

Bloom’s Level 4 - Detail the boundary layer and compressible flow concepts

Bloom’s Level 4 - Perform dimensional analysis to solve problems in fluid mechanics

Bloom’s Level 4

## Student assessment

Assessment Type | When assessed | Weighting (% of total unit marks) | Learning Outcomes Assessed |

Type: Multi-choice test / Group work / Short answer questions / Practical / Remote Lab / Simulation Example Topic: Fluid properties, statics Students will complete a quiz with MCQ type answers and solve simple problems on fluid statics |
Due after Topic 3 | 15% | 1, 2 |

Type: Multi-choice test / Group work / Short answer questions / Practical / Remote Lab / Simulation Example Topic: Buoyancy, fluid kinematics and dynamics Students will answer short essay questions and solve simple problems to demonstrate an understanding of the principles of buoyancy, fluid dynamics and kinematics |
Due after Topic 6 | 20% | 2, 3 |

Type: Multi-choice test / Group work / Short answer questions / Practical / Remote Lab / Simulation / Project / Report Example Topic: Laminar flow, flow through pipes, boundary layer concepts Students will perform simple calculations related to laminar flow, flow through pipes and boundary layer concept |
Due after Topic 9 | 20% | 3, 4 |

Type: Exam or project Example Topic: Dimensional analysis, modelling Students will undertake a project work on dimensional analysis and modelling. The assessor will specify the format in which the report will be prepared. An exam would be proctored consisting of multiple choice questions and short/long answer questions. |
Final Week | 40% | 1 to 5 |

Example: Presentation, discussion, group work, exercises, self-assessment/reflection, case study analysis, application. |
Continuous | 5% | 1 to 5 |

## Prescribed and Recommended Readings

**Textbook**

Graebel, WP 2001, Engineering Fluid Mechanics, International Student Edition, CRC Press, ISBN-13: 978-1560327110

**Reference **

Massey, BS 1998, Mechanics of Fluids, 7th edn, CRC Press, ISBN-13: 978-0748740437

**Journal, website**

http://www.engineeringtoolbox.com/fluid-mechanics-t_21.html

www.learnerstv.com/Free-Engineering-Video-lectures-ltv078-Page1.htm

**Notes and Reference Texts**

IDC Technologies

Other material advised during the lectures

## Unit Content

#### Topic 1

Fluid Properties

1. Ideal and real fluids

2. Continuum concept

3. Properties of fluids – mass density, weight density, specific volume, specific gravity, viscosity, surface tension, capillarity, vapour pressure, compressibility, bulk modulus

4. Vapour pressure and cavitation

5. Newtonian and non-Newtonian fluids

#### Topic 2

Fluid Statics

1. Pressure and Pascal’s law

2. Pressure measurement

3. Hydrostatic force on a submerged plane and curved surface

#### Topic 3

Buoyancy

1. Buoyancy and flotation

2. Archimedes principle

3. Liquid in relative equilibrium

4. Equilibrium of floating and submerged bodies

5. Determination of metacentric height

#### Topic 4

Fluid Kinematics

1. Fluid flow, fluid motion, flow lines

2. Continuity equation

3. Velocity and acceleration

4. Velocity potential function and stream function

#### Topic 5

Fluid Dynamics

1. Euler’s equation of motion

2. Bernoulli’s equation and its practical application

3. Fluid Flow Measurements: Venturimeter, orifice meter, pitot-tube, orifice meter, notches

4. Impulse momentum and momentum of momentum equations

5. Kinetic energy and momentum correction factor

#### Topic 6

Laminar Flow and Viscous Effects

1. Reynold’s number

2. Shear stress and pressure gradient relationship

3. Laminar flow through circular pipe-Hagen Poiseille’s equation

4. Laminar flow between parallel and stationary plates

#### Topic 7

Flow through Pipes

1. Minor losses through pipes

2. Darey’s and Chezy’s equation for loss of head due to friction in pipes

3. HGL and TEL

#### Topic 8

Flow Past Immersed Bodies and Boundary Layer Concept

1. Drag and lift

2. Displacement, momentum, and energy thickness

3. Concept of boundary layer and definition of boundary layer thickness

4. Analysis of laminar and turbulent boundary layers

5. Boundary layer separation and control

#### Topic 9

Compressible fluid flow

1. Velocity of sound in a fluid

2. Sonic velocity

3. Mach number and Mach cone

4. Propagation of sound waves in a compressible fluid

#### Topic 10

Dimensional Analysis

1. Methods of dimensional analysis

2. Types of similitude

3. Rayleigh’s method

4. Buckingham’s theorem

5. Limitations

6. Model analysis

#### Topic 11

Dimensional Analysis (Contd)

1. Dimensionless numbers and their significance

2. Model laws – Reynold’s model law, Froude’s model law, Euler’s model law, Weber’s model law, Mach’s Model law

#### Topic 12

Unit Review

In the final week students will have an opportunity to review the contents covered so far. Opportunity will be provided for a review of student work and to clarify any outstanding issues. Instructors/facilitators may choose to cover a specialized topic if applicable to that cohort.