2025/26 Undergraduate Module Catalogue

MECH2670 Thermofluids 2

20 Credits Class Size: 300

Module manager: Dr Joshua Armitage
Email: J.Armitage@leeds.ac.uk

Taught: Semesters 1 & 2 (Sep to Jun) View Timetable

Year running 2025/26

This module is not approved as a discovery module

Module summary

This module expands students’ knowledge in the area of thermofluids. New concepts in both fluid mechanics and thermodynamics are introduced. These allow students to better understand the function of relevant engineering applications.

Objectives

On completion of this module, students should be able to:

1- understand the fundamental concepts of incompressible fluid fluid flow in two-dimensions, with consideration of both ideal (inviscid) and real (viscous) flow.
2- analyse ideal and viscous incompressible fluid flow in two-dimensions using the continuum concepts of conservation of mass, momentum and energy.
3- understand and analyse incompressible viscous flow with application to internal flows such as pipes, pipe networks, parallel plates, fluid film bearings and dampers.
4- understand and analyse incompressible viscous flow with application to external flows such as flat plates, cylinders, spheres, airfoils and automobiles.
5- understand the fundamental concepts of heat transfer which include conduction, convection and radiation.
6- understand how to analyse practical heat transfer problems and have an appreciation of practical include heat exchangers
7- understand the fundamental concepts of combustion: fuels, chemical equations, stoichiometry; chemical reaction schemes, rate of reaction, equilibrium, adiabatic flame temperature for constant pressure and volume, pollutant generation mechanisms

Learning outcomes

On successful completion of the module students will have demonstrated the following learning outcomes relevant to the subject:

1- Describe the fundamental concepts of incompressible fluid flow in two-dimensions
2- Use the continuum concepts of conservation of mass, momentum and energy to analyse ideal and viscous incompressible fluid flow in two-dimensions
3- Analyse incompressible viscous flow with application to internal flows such as pipes, pipe networks, parallel plates, fluid film bearings and dampers
4- Analyse incompressible viscous flow with application to external flows such as flat plates, cylinders, spheres, airfoils and automobiles.
5- Analyse practical heat transfer problems extending to heat exchangers
6- Carry out elementary analysis of combustion problems in an engineering context

These module learning outcomes contribute to the following AHEP4 learning outcomes:

7- Apply knowledge of mathematics, statistics, natural science and engineering principles to broadly-defined problems. Some of the knowledge will be informed by current developments in the subject of study. [C1]
8- Analyse broadly-defined problems reaching substantiated conclusions using first principles of mathematics, statistics, natural science and engineering principles. [C2]
9- Select and apply appropriate computational and analytical techniques to model broadly-defined problems, recognising the limitations of the techniques employed. [C3]

Skills Learning Outcomes

On successful completion of the module students will have demonstrated the following skills:

a- Problem solving & analytical skills
b- Laboratory practice

Syllabus

1. Fundamental Concepts

a. Fluids as a continuum
b. Definition of a fluid
c. Shear stress and shear rate
d. Definition of viscosity
e. Newtonian and non-Newtonian fluids
f. Newtonian viscosity measurement

2. Description of Incompressible Fluid Motion in Two-Dimensions: Ideal and Viscous

a. Streamlines
b. Conservation of mass
c. Stream function
d. Motion of a fluid particle, rigid body and deformation
e. Momentum equation
f. Navier-Stokes equations

3. Internal Incompressible Viscous Flow

a. Types of internal flow problem
b. Development of flow in pipes
c. Hagen-Poiseuille flow
d. Energy considerations In pipe flow
e. Major energy losses in pipe flow
f. Minor energy losses in pipe flow
g. Other examples of flow between solid boundaries

4. External Incompressible Viscous Flow

a. Types of external flow problem
b. Boundary layer concept
c. Boundary layer development on a flat surface
d. Flow around a circular cylinder
e. Drag: viscous and pressure around plates, cylinders and spheres
f. Airfoils: lift and drag
g. Automobile aerodynamics

5. Heat transfer

a. One dimensional conduction in planar and cylindrical systems
b. Three dimensional and transient conduction
c. Forced and natural convection
d. Radiative heat transfer
e. Heat exchangers

6. Combustion

a. Fuels
b. Chemical equations and stoichiometry
c. Properties of combustion gases
d. Enthalpy and internal energy of reaction
e. Chemical reaction schemes, reaction rates and equilibria
f. Flame temperature
g. Pollutant generation

Methods of assessment
The assessment details for this module will be provided at the start of the academic year

Teaching Methods

Delivery type Number Length hours Student hours
Lecture 44 1 44
Practical 6 2 12
Private study hours 144
Total Contact hours 56
Total hours (100hr per 10 credits) 200

Opportunities for Formative Feedback

Students have access to examples sheets with self-assessment against solutions. These are complemented with worked examples covered in lectures. Furthermore, formative feedback is provided in the assessment of lab reports.

Reading List

The reading list is available from the Library website

Last updated: 30/04/2025

Errors, omissions, failed links etc should be notified to the Catalogue Team