151-0125-00L  Hydrodynamics and Cavitation

SemesterAutumn Semester 2022
LecturersO. Supponen
Periodicityyearly recurring course
Language of instructionEnglish


151-0125-00 GHydrodynamics and Cavitation3 hrs
Mon10:15-13:00HG E 21 »
O. Supponen

Catalogue data

AbstractThis course builds on the foundations of fluid dynamics to describe hydrodynamic flows and provides an introduction to cavitation.
ObjectiveThe main learning objectives of this course are:
1. Identify and describe dominant effects in liquid fluid flows through physical modelling.
2. Identify hydrodynamic instabilities and discuss the stability region
3. Describe fragmentation of liquids
4. Explain tension, nucleation and phase-change in liquids.
5. Describe hydrodynamic cavitation and its consequences in physical terms.
6. Recognise experimental techniques and industrial and medical applications for cavitation.
ContentThe course gives an overview on the following topics: hydrostatics, capillarity, hydrodynamic instabilities, fragmentation. Tension in liquids, phase change. Cavitation: single bubbles (nucleation, dynamics, collapse), cavitating flows (attached, cloud, vortex cavitation). Industrial applications and measurement techniques.
Lecture notesClass notes and handouts
LiteratureLiterature will be provided in the course material.
Prerequisites / NoticeFluid dynamics I & II or equivalent

Performance assessment

Performance assessment information (valid until the course unit is held again)
Performance assessment as a semester course
ECTS credits4 credits
ExaminersO. Supponen
Typesession examination
Language of examinationEnglish
RepetitionThe performance assessment is only offered in the session after the course unit. Repetition only possible after re-enrolling.
Mode of examinationwritten 120 minutes
Additional information on mode of examinationThe written final exam (taking place during the examination session) covers all contents of this course, including lectures, exercises as well as numerical and experimental assignments. It counts 60% towards the final grade. Additionally, there will be a compulsory continuous performance assessment (counting 40% towards the final grade) divided in three parts: (i) 10% will be based on numerical exercises (e.g., solving hydrodynamic ODEs using Matlab), (ii) 20% will rely on a lab report based on an experiment performed in groups of 5 students and (iii) the last 10% will be based on a 10-min presentation (group of 3-4 students) on a case study of cavitation.
Written aidsOne page (A4, two-sided) of own handwritten notes on the subject.
This information can be updated until the beginning of the semester; information on the examination timetable is binding.

Learning materials

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Offered in

Mechanical Engineering MasterEnergy, Flows and ProcessesWInformation
Computational Science and Engineering BachelorFluid DynamicsWInformation
Computational Science and Engineering MasterFluid DynamicsWInformation
Process Engineering MasterCore CoursesWInformation