2023-2024 / MECA0032-1

Flow in turbomachines

Duration

26h Th, 26h Pr, 60h Proj.

Number of credits

 Master of Science (MSc) in Aerospace Engineering, professional focus in turbomachinery aeromechanics (THRUST)5 crédits 
 Master of Science (MSc) in Aerospace Engineering5 crédits 
 Master of Science in Energy Engineering5 crédits 
 Master of Science (MSc) in Electromechanical Engineering5 crédits 

Lecturer

Koen Hillewaert

Language(s) of instruction

English language

Organisation and examination

Teaching in the first semester, review in January

Schedule

Schedule online

Units courses prerequisite and corequisite

Prerequisite or corequisite units are presented within each program

Learning unit contents

Theory

  • Use and classification of turbomachinery
  • Derivation of the general equations, basic principles, control volumes, energy transfer and irreversibilities, absolute and relative frames, Euler equation of turbomachinery
  • Thermodynamic performances, efficiencies, operating maps and similarity
  • Quasi-3D design and analysis method for axial machines: decomposition in blade-to-blade stream surface and meridional plane, velocity triangles, cascade flows; pitch line design and analysis procedure
  • Meridional flows: radial equilibrium, design choices, extension of the design and analysis procedure.
  • Flow in the blade-to-blade plane and blade design;
  • Secondary and leakage flows; operation at off-design; instabilities
  • Specific aerodynamic simulation techniques for turbomachinery
  • Recent trends in propulsion and jet engines, and their impact on components and design
Projects

  • Pre-design of an axial machine
  • estimation of the operating curves of the aforementioned machine
  • CFD analysis of a turbomachinery passage and analysis of secondary flow 
Seminars on modern design practices and recent trends by external specialists

 

Learning outcomes of the learning unit

To understand the physics of the flow in turbomachines.
To understand the methods used for aerodynamic design of turbomachines.

This course contributes to the learning outcomes I.1, I.2, II.1, II.2, II.3, III.1, III.2, IV.1, IV.3, VI.1, VII.4 of the MSc in aerospace engineering.

 

This course contributes to the learning outcomes I.1, I.2, II.1, II.2, II.3, III.1, III.2, IV.1, IV.3, VI.1, VII.4 of the MSc in electromechanical engineering.

 

Prerequisite knowledge and skills

Thermodynamics, mechanics, and fluid dynamics

Planned learning activities and teaching methods

A number of assignments are given along the course, consisting of the preliminary design of a multistage compressor or turbine, the analysis of the off-design performance using quasi-1D methods; CFD analysis of passages 

Mode of delivery (face to face, distance learning, hybrid learning)

Face-to-face course


Additional information:

12 sessions of 4 hours each are organized during the first part of the academic year.

Recommended or required readings

Course notes are available online. These notes are regularly updated and distributed via the e-campus page of the course, which also hosts the virtual class room and fora for questions etc. Further material is referenced in the course, and will be proposed to the students in function of their interests.

Exam(s) in session

Any session

- In-person

oral exam

Written work / report


Additional information:

The course is evaluated on the basis of the project results, which are discussed in an oral exam.

Work placement(s)

Organisational remarks and main changes to the course

Contacts

Teacher : Koen Hillewaert, koen.hillewaert@uliege.be

Association of one or more MOOCs