The University of Southampton

# FEEG1003 ThermoFluids

## Module Overview

Core Thermodynamics and Fluid Mechanics for all Engineering Themes.

Pre-requisite - Mathematics and Physics A level.

### Aims and Objectives

#### Knowledge and Understanding

Having successfully completed this module, you will be able to demonstrate knowledge and understanding of:

• The properties of thermofluid flow and methods of analysis, including conservation principles for mass, momentum and energy.
• A framework for advanced courses by introducing and classifying common engineering applications.
• Concepts of laminar and turbulent flow, boundary layers, bluff body and streamlined flow, transition, separation and cavitation.
• The energy conversion processes involving heat, work and energy storage.
• The application of thermodynamic principles to the propulsion of land, sea and air transport and in the generation of power.

#### Subject Specific Intellectual

Having successfully completed this module, you will be able to:

• Understand important thermofluids properties and principles in fluid mechanics.
• Perform straightforward analysis of examples of mass, momentum and energy conservation.
• Use dimensional analysis in appropriate ways and explain the physical meaning of various non-dimensional parameters.
• Assess simple flows and their behaviour from fundamental information such as the value of the Reynolds number and the shape of the body.
• Analyse various thermal processes and plant.

#### Transferable and Generic

Having successfully completed this module, you will be able to:

• Study and learn independently.
• Communicate work in written reports.
• Demonstrate study and time management skills.
• Solve problems.
• Appreciate sustainability and ethical issues in engineering

#### Subject Specific Practical

Having successfully completed this module, you will be able to:

• Critically analyse results.
• Produce scientific reports describing laboratory experiments.

### Syllabus

Part 1 : Tools of the trade (14 lectures)

Part 1.1 : Applied Math Tools (an overview of what should be understood coming into this course)

• Applied maths overview (basic integration, including over surfaces, differentiation, Taylor series, Newton’s Law, some thermodynamic principles

Part 1.2 : Conceptual Principles in Thermofluids

• An extension of A level applied maths/physics (mass, force, acceleration, rates of change, moments), mass, force, acceleration, forms of energy (potential, kinetic, thermal, but not its conversion), and support this by a definitive nomenclature for the remainder of the course.
• Solids/liquids/gases from a molecular description – first introduction to pressure, the equilibrium state.
• Bulk modulus and compressibility
• The continuum approximation
• Other thermofluid approximations
• Properties of a fluid, and properties of a flow of fluid
• Ideal gases and the gas law (thermodynamic pressure), definitions of heat and work, sign conventions, types of non-flow processes, p-V diagrams, First Law of thermodynamics.
• Convection (bulk transport)
• Diffusion (molecular transport of momentum/shear stress and energy)
• Systems and control volumes, surface flux, the conservation principle.
• Fundamental and derived quantities.
• Intensive and extensive properties.
• Dimensions and units, Dimensional homogeneity.
• The importance of length, velocity, time scales in a problem.
• Present several non-dimensional numbers and explain what they represent in terms of force/ timescale ratios etc and demonstrate how they are used to maintain similarity.
• Buckingham Pi (brief introduction here, used throughout the remainder of the course)

Part 2 : Thermofluid Mechanics

Part 2.1 : Fluid Statics – 4 lectures

• Static pressure, Pascal’s law
• Hydrostatic equation, manometry, and demonstration of potential energy
• Forces on planar and curved gates, moments etc
• Buoyancy and stability
• Non-dimensional analysis.

Part 2.2 : Inviscid Flow/Conservation Equations - 12 lectures

• Streamlines/tubes
• Rotation, vorticity, irrotational flow
• Acceleration, Eulers equation
• Conservation of mass
• Conservation of Energy

–         Bernoulli’s equation, cavitation

–         flow measurement

–         mechanical energy losses, pressure drop in pipes

–         Steady flow Energy Equation, nozzles, throttles, heat exchangers etc

–         examples

• Conservation of Momentum

–         Momentum as a vector quantity

–         Force – momentum equation

–         Fluid Drag and Wakes

–         examples

Part 2.3 : Viscous Flow – 4 lectures

• Couette and Pipe flows
• Streamline flows, bluff bodies, separation
• Boundary layers
• Turbulence

Part 3 : Thermal energy systems (10 lectures)

• Introduction to the Second Law of Thermodynamics.
• Definition of the heat engine and cycle efficiency.
• The Carnot heat engine.
• Reversed heat engines (heat pump and refrigerator) and coefficient of performance.
• Reversible and irreversible processes. Corollaries of the second law. Definition of entropy and its use in engineering thermodynamics.
• Entropy change in isothermal and adiabatic processes. Isentropic processes.
• Introduction to cycles. The Otto, Diesel and Brayton cycles and their applications.

### Learning and Teaching

#### Teaching and learning methods

Teaching methods include:

• Lectures and videos of lecture material
• Example problems
• Laboratories
• AV presentations

Learning activities include:

• Problem solving
• Practical classes

Study time allocation:

Contact hours: 93

Independent study: 47

Total study time: 150 hours

Course notes will be provided.

Problem books and lab sheets will be provided.

Bespoke Textbook Available

### Assessment

#### Assessment methods

Assessment Method Hours % contribution to final mark Feedback
Coursework Courseworks 1 of 5   4% Coursework and lab returns, group tutorial sessions, 1-2-1 tutor sessions
Coursework Courseworks 2 of 5   4% Coursework and lab returns, group tutorial sessions, 1-2-1 tutor sessions
Coursework Courseworks 3 of 5   4% Coursework and lab returns, group tutorial sessions, 1-2-1 tutor sessions
Coursework Courseworks 4 of 5   4% Coursework and lab returns, group tutorial sessions, 1-2-1 tutor sessions
Coursework Courseworks 5 of 5   4% Coursework and lab returns, group tutorial sessions, 1-2-1 tutor sessions
Labs Lab 1 of 5   2% Coursework and lab returns, group tutorial sessions, 1-2-1 tutor sessions
Labs Lab 2 of 5   2% Coursework and lab returns, group tutorial sessions, 1-2-1 tutor sessions
Labs Lab 3 of 5   2% Coursework and lab returns, group tutorial sessions, 1-2-1 tutor sessions
Labs Lab 4 of 5   2% Coursework and lab returns, group tutorial sessions, 1-2-1 tutor sessions
Labs Lab 5 of 5   2% Coursework and lab returns, group tutorial sessions, 1-2-1 tutor sessions
Exam 2 hour(s) 70%

Referral Method: By examination

Method of Repeat Year: Repeat year internally. Repeat year externally.