Course syllabus

Turbulens - teori och modellering
Turbulence - Theory and Modelling

MVKN90, 7,5 credits, A (Second Cycle)

Valid for: 2022/23
Faculty: Faculty of Engineering, LTH
Decided by: PLED M
Date of Decision: 2022-04-07

General Information

Elective for: F5, F5-bem, M4-bem, Pi4-bem, MHET2
Language of instruction: The course will be given in English

Aim

The aim of this course is to provide basic theoretical knowledge on turbulence as well as the design of turbulence models and their applicability. Furthermore, the intention is to provide skills in the analysis of turbulent flows. This knowledge should be sufficient to understand the background of turbulence models and the ability to chose an appropriate turbulence model for a given flow case.

Learning outcomes

Knowledge and understanding
For a passing grade the student must

Competences and skills
For a passing grade the student must

Judgement and approach
For a passing grade the student must

Contents

The course contains the basic theory for turbulent flows, the transition from laminar to turbulent flows and the physical basis for different types of turbulence models. The turbulence theory part contains statistical and phenomenological description of turbulence Kolmogorov’s hypotheses, and also wall bounded and free shear flows. Homogeneous and isotropic turbulence is discussed as well as anisotropy in different types of flow. The modelling part contains the most common types of turbulence models, i.e the ones based on the Reynolds averaged equations and Large Eddy Simulation. The physical background and effects of different models are discussed. The mathematical description is also treated, averaging of the governing equations, and derivation of the extra equations needed.

Examination details

Grading scale: TH - (U,3,4,5) - (Fail, Three, Four, Five)
Assessment: Examination is individual as well as based on group work. The compulsory home works and laboratory exercises are reported in writing, individually. The project assignment is reported group-wise both in writing and orally at a seminar, where all group members shall participate actively. To get a passing grade (grade 3) all compulsory parts, i.e. home works, laboratory exercises and the project assignment must be approved. A higher grade than 3 is set based on a volontary oral exam.

The examiner, in consultation with Disability Support Services, may deviate from the regular form of examination in order to provide a permanently disabled student with a form of examination equivalent to that of a student without a disability.

Admission

Admission requirements:

The number of participants is limited to: No

Reading list

Contact and other information

Course coordinator: Johan Revstedt, Johan.Revstedt@energy.lth.se
Examinator: Johan Revstedt, Johan.Revstedt@energy.lth.se
Course homepage: https://www.energy.lth.se/english/education/
Further information: The course is based on lectures, exercises, laboratory exercises, home work and group work in the form of a smaller project assignment. The course will be given in English.