Course objectives:
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The aim of the course is to acquaint students with the basic aero-thermodynamic principles in turbomachines, explain the problems of dimensional analysis for compressible and incompressible fluid in turbomachines, clarify the basic physical nature of the flow in 2D compressor and turbine axial blade cascades, and outline the most common approaches used in the design of axial compressors and turbine stages. Furthermore, to acquaint students with the basic physical nature of 3D flow and the equation of radial equilibrium.
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Requirements on student
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Continuous assessment: Elaboration of laboratory exercises in the form of seminar work.
Exam: Knowledge of lectured and practised issues.
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Content
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Lectures:
1. Fundamental principles in Turbomachinery.
2. Dimensional analysis.
3. Two-dimensional compressor cascade.
4. Compressor stage mean-line analysis.
5. Stall and surge phenomena in compressors.
6. Two-dimensional turbine cascades.
7. Turbine stage mean-line analysis.
8. Turbine stage losses and efficiency.
9. 3D flows in axial turbomachines - theory of radial equilibrium.
10. Off-design turbine stage performance.
11. Basic description of experimental air turbine.
Tutorials:
1. Dimensional analysis of turbulent flow in pipe.
2. Single stage transonic compressor.
3. Simplified design of turbine blade profile.
4. Application of Soderberg´s correlation method.
5. Axial single-stage turbine expansion.
Laboratory:
1. Pneumatic probe calibration.
2. Turbine stage wake traversing.
3. Tip leakage flow calibration.
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Activities
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Fields of study
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Guarantors and lecturers
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Literature
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Basic:
Dixon, S. L.; Hall, C. A. Fluid mechanics and thermodynamics of turbomachinery. 6th ed. Burlington : Butterworth-Heinemann, 2010. ISBN 978-1-85617-793-1.
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Extending:
Zou, Zhengping; Wang, Songtao; Liu, Huoxing; Zhang, Weihao. Axial turbine aerodynamics for aero-engines : flow analysis and aerodynamics design. 2018. ISBN 978-981-10-5749-6.
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Extending:
Schobeiri M.T. Fluid Mechanics for Engineers. Springer, 2010.
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Recommended:
COHEN, H.; ROGERS, G.F.C.; SARAVANAMUTTOO, H.I.H. Gas Turbine Theory. Longman Scientific&Technical, 1992. ISBN 0-582-30539-X.
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On-line library catalogues
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Time requirements
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Full-time form of study
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Activities
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Time requirements for activity [h]
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Contact hours
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30
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Preparation for an examination (30-60)
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35
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Presentation preparation (report) (1-10)
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10
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Practical training (number of hours)
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30
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Total
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105
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Prerequisites
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Knowledge - students are expected to possess the following knowledge before the course commences to finish it successfully: |
to apply basic knowledge of Mathematics, Fluid mechanics, Thermodynamics. |
Skills - students are expected to possess the following skills before the course commences to finish it successfully: |
to work with available foreign literature.
to work with one of the available spreadsheets.
to use the basics of programming. |
Competences - students are expected to possess the following competences before the course commences to finish it successfully: |
N/A |
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Learning outcomes
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Knowledge - knowledge resulting from the course: |
Basic knowledge of axial compressors aero-thermodynamics.
Basic knowledge of axial turbines aero-thermodynamics.
Basic knowledge of 3D flow in axial turbomachines.
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Skills - skills resulting from the course: |
Ability to evaluate measured data from laboratory exams.
Ability to present and interpret the research outcomes from laboratory exams. |
Competences - competences resulting from the course: |
N/A |
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Assessment methods
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Knowledge - knowledge achieved by taking this course are verified by the following means: |
Oral exam |
Skills - skills achieved by taking this course are verified by the following means: |
Seminar work |
Competences - competence achieved by taking this course are verified by the following means: |
Written exam |
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Teaching methods
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Knowledge - the following training methods are used to achieve the required knowledge: |
Lecture |
Skills - the following training methods are used to achieve the required skills: |
Practicum |
Laboratory work |
Competences - the following training methods are used to achieve the required competences: |
Individual study |
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