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2019/20 Undergraduate Module Catalogue

MECH2670 Thermofluids 2

20 creditsClass Size: 300

Module manager: Dr Malc Lawes
Email: M.Lawes@leeds.ac.uk

Taught: Semesters 1 & 2 View Timetable

Year running 2019/20

Pre-requisites

MECH1215Thermofluids 1

Module replaces

MECH 2600 Fluid Mechanics

This module is not approved as a discovery module

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 completion of this modules students will have learned how to:
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

Upon successful completion of this module the following UK-SPEC learning outcome descriptors are satisfied:

A comprehensive knowledge and understanding of the scientific principles and methodology necessary to underpin their education in their engineering discipline, and an understanding and know-how of the scientific principles of related disciplines, to enable appreciation of the scientific and engineering context, and to support their understanding of relevant historical, current and future developments and technologies (SM1m)
Understanding of engineering principles and the ability to apply them to undertake critical analysis of key engineering processes (EA1m)
Ability to identify, classify and describe the performance of systems and components through the use of analytical methods and modelling techniques (EA2)
Ability to apply relevant practical and laboratory skills (P3)
Apply their skills in problem solving, communication, information retrieval, working with others and the effective use of general IT facilities (G1)

Skills outcomes
Written communication, analysis, synthesis, criticality and argument, problem solving, interpretation, laboratory skills and numeracy.


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

Teaching methods

Delivery typeNumberLength hoursStudent hours
Class tests, exams and assessment12.002.00
Lecture401.0040.00
Practical62.0012.00
Seminar41.004.00
Tutorial41.004.00
Private study hours138.00
Total Contact hours62.00
Total hours (100hr per 10 credits)200.00

Private study

Reinforcement of lectures, solving example sheet problems, preparing lab reports and study for examination

Opportunities for Formative Feedback

Example sheets (one per course unit) [formative]
Laboratory practical write-ups [formative and summative]
4 x tutorials [formative]

Methods of assessment


Coursework
Assessment typeNotes% of formal assessment
PracticalLaboratory report20.00
PracticalLaboratory report20.00
Total percentage (Assessment Coursework)40.00

1) Coursework marks carried forward and 60% resit exam OR 2) 100% exam


Exams
Exam typeExam duration% of formal assessment
Standard exam (closed essays, MCQs etc)2 hr 00 mins60.00
Total percentage (Assessment Exams)60.00

Normally resits will be assessed by the same methodology as the first attempt, unless otherwise stated

Reading list

The reading list is available from the Library website

Last updated: 08/08/2019

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