Study-Unit Description

Study-Unit Description


CODE MEC3108

 
TITLE Fluid Mechanics 3

 
UM LEVEL 03 - Years 2, 3, 4 in Modular Undergraduate Course

 
ECTS CREDITS 5

 
DEPARTMENT Mechanical Engineering

 
DESCRIPTION This study-unit will focus on fluid rotor dynamic machinery, often referred to as turbomachinery, which are use to transfer energy to or from fluids. Various types of turbomachinery will be covered, including propellors, wind turbines, fans and hydraulic pumps and turbines.

Study-unit Aims:

The main scope of this unit is to provide an understanding of the engineering principles governing the design and performance of turbomachines. The emphasis will be on nearly incompressible flow, mainly liquids and low-velocity gases. The various applications of the different types of turbomachines will be covered. These will include renewable energy conversion, aircraft and ship propulsion, water pumping and building ventilation.

Learning Outcomes:

1. Knowledge & Understanding:

By the end of the study-unit the student will be able to:
- distinguish between the various types of turbomachines and their applications;
- describe the operating principles of various types of turbomachines, including axial- radial- and mixed-flow machines;
- apply the fundamental scientific principles that form the basis for the design and performance estimation of various turbomachines, including the following:
    a. propellors for aircraft and ship propulsion
    b. wind turbines
    c. hydraulic turbines used in wave, tidal and other forms of hydroelectric energy conversion systems
    d. fans and hydraulic pumps.
- select appropriate aerofoil geometries for the design of propellors and turbines;
- apply dimensionless groups and dynamic similarity principles for turbomachines;
- identify appropriate techniques for performance testing of turbomachines;
- interpret performance characteristic charts;
- evaluate the various advantages, problems and performance limitations associated with turbomachines;
- indentify the various performance losses experienced in turbo-machines;
- describe the fundamental physics forming the wake of propellers and wind turbines;
- discuss the use of hydraulic pumps and turbines in the conversion, transmission and storage of renewable energy, including marine-based renewables.

2. Skills:

By the end of the study-unit the student will be able to:
- correctly use the nomenclature associated with turbomachines;
- classify turbomachines based on their construction;
- apply elementary theoretical and practical methods to design and determine the performance of various types of turbomachines. These include the Rankine-Froude actuator disk, angular momentum and the blade-element theories normally applied to propellors and axial flow turbines;
- apply various criteria for assessing and selecting turbomachines;
- apply the use of the specific speed to select the optimal pump or turbine for water pumping or hydro-electric power generation, respectively;
- develop numerical tools based on the iterative blade-element-momentum technique to estimate the performance of variable pitch propellors and turbines;
- model the performance of centrifugal pumps and fans, including that of multiple pumps/fans connected in series or in parallel;
- apply computer-based design and simulation programs for engineering analysis.

Main Text/s and any supplementary readings:

Fluid Mechanics
Frank M. White (Author)
McGraw-Hill International Edition
ISBN 978-0-07-128645-9

Fluid Mechanics, Fifth Edition
J.F. Douglas (Author); J.M. Gasiorek (Author); J.A. Swaffield (Author); L.B. Jack (Author)
Pearson - Prentice Hall (2005), ISBN-10:0131292935

Wind Energy Explained: Theory, Design and Application
James Manwell (Author), J G Mc Gowan (Author) , A Rogers (Author)
John Wiley & Sons (2007); ISBN: 0471499722

Fluid Mechanics and Thermodynamics of Turbomachinery, Fifth Edition
S.L. Dixon (Author)
Elsevier (2005);ISBN 0-7506-7870-4

 
ADDITIONAL NOTES Pre-requiste Study-units: MEC2340, MEC3341

 
STUDY-UNIT TYPE Lecture, Independent Study, Practicum & Tutorial

 
METHOD OF ASSESSMENT
Assessment Component/s Assessment Due Sept. Asst Session Weighting
Practical SEM2 Yes 25%
Examination (2 Hours) SEM2 Yes 75%

 
LECTURER/S Russell Farrugia

 

 
The University makes every effort to ensure that the published Courses Plans, Programmes of Study and Study-Unit information are complete and up-to-date at the time of publication. The University reserves the right to make changes in case errors are detected after publication.
The availability of optional units may be subject to timetabling constraints.
Units not attracting a sufficient number of registrations may be withdrawn without notice.
It should be noted that all the information in the description above applies to study-units available during the academic year 2023/4. It may be subject to change in subsequent years.

https://www.um.edu.mt/course/studyunit