| Code |
15252
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| Year |
1
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| Semester |
S1
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| ECTS Credits |
6
|
| Workload |
TP(60H)
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| Scientific area |
Aeronautics and Astronautics
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|
Entry requirements |
Knowledge of heat and mass transfer.
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|
Learning outcomes |
Acquire the fundamental concepts and equations of turbulence.
Develop free flow analysis capabilities.
Understand the scales of turbulence and the use of the various structural parameters of turbulence and the energy spectrum.
Be able to analyze confined flows.
Have basic knowledge of combustion.
Master the basic mass transfer equations and fundamental laws
Understand and master the processes of chemical kinetics.
Understand the ignition phenomenon.
Develop flame analysis capabilities of laminar premix or diffusion and understand its application in real systems.
Know means of analysis and control of turbulent flames.
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Syllabus |
Pedagogical Block I - Turbulence
1. Introduction and fundamental concepts. Fundamental equations.
2. Statistical description of the turbulence.
3. Reynolds equations.
4. Free drains. Jets, wakes and shear layers.
5. Scales of turbulence. The energy cascade and the Kolmogorov hypothesis. Structural parameters of turbulence. Spatial correlations. Fourier modes. Speed spectrum.
6. Confined flows. Flows in channels and pipes. Boundary layers.
Pedagogical Block II - Combustion
1. Thermochemistry. Stoichiometry. Adiabatic flame temperature. Chemical balance. Combustion products.
2. Mass transfer. Fundamental laws. Practical case of drop evaporation.
3. Chemical kinetics. Elementary and global reaction rates. Reaction rates of chain mechanisms.
4. Case studies. The O2-H2 system. Oxidation of CO. Combustion of methane.
5. Ignition.
6. Laminar premix flames. Laminar diffusion flames.
7. Turbulent flames.
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Main Bibliography |
Brederode, V., “Fundamentos de Aerodinâmica Incompressível”, IDMEC, Instituto Superior Técnico, Lisboa.
H. Tennekes and J. L. Lumley, A First Course in Turbulence, MIT Press, Cambridge.
H. Tennekes and J. L. Lumley, Turbulência em Fluidos, Fundação Calouste Gulbenkien.
Silva, A.R.R., “Slides de Turbulência”, Universidade da Beira Interior.
Coelho, P., Costa, M., Combustão, Edições Orion.
Turns, S.R., An Introduction to Combustion: Concepts and Applications, McGraw-Hill Book.
Silva, A.R.R., “Slides de Combustão com exercícios propostos”, Universidade da Beira Interior.
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Teaching Methodologies and Assessment Criteria |
Classes are presented using audiovisual media. Application exercises and analysis of case studies are also carried out.
The assessment of knowledge is based on the final exam (individual).
1) Final Exam (individual)
The final exam (NEF) consists of a written test (NE) and oral exam (NEO). The final exam grade, NEF, is calculated as follows:
- if NE => 16 values and performed the oral exam, then NEF = NEO;
- if NE => 16 values and not performed the oral exam, then NEF = 16 values;
- if 9,5 <= NE < 16 values, then NEF = NE;
- if NE < 9.5 values, then NEF = NE ("Disapproved").
Admission to the final exam depends on obtaining attendance in accordance with the criteria below.
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Language |
Portuguese. Tutorial support is available in English.
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