# FLUID MECHANICS & THERMODYNAMICS - 2021/2

Module code: ENG1089

## Module Overview

First year common module in thermo-fluids for MES + Chemical Engineering students.

FLUID MECHANICS: The basic concepts underlying fluid flows and behaviour are described together with simple fluid properties. The calculation of static fluid forces is the starting point before moving to dynamic fluid effects including mass-flow and energy conservation. Non-dimensional analysis methods, laminar and turbulent flows and pipe system analysis are considered, including fluid friction, momentum and energy losses in fittings.

THERMODYNAMICS:  Following an introduction on energy consumption, generation and supply from conventional and alternative sources the basic principles of heat and work transfer are described and system thermal efficiency. Thermal properties of working fluids (both liquids and gases) are described. The 1st law of thermodynamics is introduced with applications to processes and cycles for closed and steady-flow systems.

### Module provider

Chemistry and Chemical Engineering

### Module cap (Maximum number of students): N/A

Independent Learning Hours: 93

Lecture Hours: 11

Tutorial Hours: 13

Guided Learning: 11

Captured Content: 22

Semester 2

None.

## Module content

Indicative content includes:

Fluid Mechanics

Fluid properties (density, viscosity, surface tension)

Hydrostatics (forces on surfaces, submerged bodies, valves, gates etc.)

Buoyancy (stability of submerged and floating bodies)

Fluid kinematics (streamlines and continuity)

Fluid dynamics (Bernoulli’s equation, flow through orifices, Venturi meter)

Momentum equation (impacting jets, forces on pipe bend)

Introduction to viscous laminar & turbulent flow (Re, laminar flow, Poiseuille flow in a pipe, description of turbulent flow characteristics) [10hrs]

Turbulent flow

Film model and 1/7th power law for time averaged flow in pipes

Friction factors and pressure gradients in pipes
(effect of roughness; Moody chart)

Hydrodynamic resistance of sudden expansions, valves, bends etc.

Introduction to boundary layers on a flat plate, including variation of shear stress with distance from leading edge.

Pumps

Types of pumps

Head/flow rate characteristics (esp. centrifugal pumps)

Pumps in series and parallel  (includes mention of NPSH)

Simple Pump and pipe-work calculations

Dimensional analysis (Buckingham’s Pi theorem)

Scale models [12hrs]

Thermodynamics

Introduction to thermodynamics – work & heat transfer

Energy consumption, generation, alternative sources and system efficiency

First law  – for closed systems, internal energy. Applications.

Applications to power plant (pV diagrams)

Fluid properties, liquids & gases, Cp and Cv  [11hrs]

## Assessment pattern

Assessment type Unit of assessment Weighting
Coursework COURSEWORK 15
Coursework COURSEWORK 15
Examination Online ONLINE (OPEN BOOK) EXAM 70

None

## Assessment Strategy

The assessment strategy is designed to provide students with the opportunity to demonstrate understanding of scientific principles, methodologies and mathematics methods as well as the ability to describe particular systems and processes in the final examination. The Fluids coursework element allows students to demonstrate that they can interpret a problem and present a solution clearly and accurately. The mini-project tests research skills and report writing as well as their ability to record a simple experiment and comment critically on accuracy and methods employed.

Thus, the summative assessment for this module consists of:

• Fluids coursework      [ Learning outcomes 1, 2 ]                  {15%}

• Thermo mini-project  [ Learning outcomes 3, 5 ]                   {15%}

• Examination               [ Learning outcomes 1, 2, 3, 4 ]         (2 hours)   {70%}

Formative assessment and feedback

• Formative verbal feedback is given in tutorials

• Formative Multiple Choice Tests are available on SurreyLearn to give feedback on understanding of simple principles

• Written feedback is given on the coursework assessments including a TurnItIn report on their Thermo mini-project

## Module aims

• • an introduction to fluid mechanics and thermodynamics and in particular internal flow behaviour and the principles and methodologies applied to fluid statics, dynamics and 1st law thermodynamics
• • an understanding of the principles of energy generation, conservation, conversion and alternative energy sources

## Learning outcomes

 Attributes Developed 001 Demonstrate a comprehensive understanding of scientific principles and methodology relating to fluid statics, dynamics and the 1st law of thermodynamics K 002 Apply mathematical and scientific models to problems in basic thermo-fluids and appreciate the assumptions and limitations inherent in their application C 003 Describe the performance and characteristics of thermo-fluid systems and processes K 004 Undertake a brief research topic and evaluate of a simple thermodynamic system to estimate its energy efficiency KCPT

Attributes Developed

C - Cognitive/analytical

K - Subject knowledge

T - Transferable skills

P - Professional/Practical skills

## Methods of Teaching / Learning

The learning and teaching strategy is designed to:

introduce thermo-fluid principles through theory with worked examples. This is delivered principally through lectures and tutorial classes and concludes with an independently conducted mini project involving basic experimental procedures.

The learning and teaching methods include:

• 3 hours lecture per week x 11 weeks

• 1 hour tutorial (in groups) x 11 weeks

• 2 hours revision lectures

• Fluids coursework

• Thermo mini project submitted on SurreyLearn

Indicated Lecture Hours (which may also include seminars, tutorials, workshops and other contact time) are approximate and may include in-class tests where one or more of these are an assessment on the module. In-class tests are scheduled/organised separately to taught content and will be published on to student personal timetables, where they apply to taken modules, as soon as they are finalised by central administration. This will usually be after the initial publication of the teaching timetable for the relevant semester.