Course detail

Fluid Structure Interactions

FSI-MZHAcad. year: 2025/2026

This subject is a continuation of the subject Fluid Engineering. The aim is deepening the knowledge abot unsteady motion of stiff and elastic bodies in real fluid. Intention is application on design of hydraulic elements and systems.

Language of instruction

Czech

Number of ECTS credits

4

Mode of study

Not applicable.

Guarantor

prof. Ing. František Pochylý, CSc.

Department

Energy Institute (EÚ)

Entry knowledge

Basics in hydrodynamics, thermo mechanics and the body dynamics

Rules for evaluation and completion of the course

Credit and Examination (oral exam)
Seminars and written tasks on the excercises

Aims

Project, optimize and improve the creative thought of students in the hydraulic and pneumatic devices design.
The knowledge of applied hydrodynamics and the basic hydraulic elements and mechanisms principle.

Study aids

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

AXISA, François a Jose ANTUNES. Modelling of mechanical systems. Amsterdam: Elsevier Butterworth-Heinemann, 2007. ISBN 0-7506-6847-4.
BIRD, R. Byron, Warren E. STEWART a Edwin N. LIGHTFOOT. Přenosové jevy: sdílení hybnosti, energie a hmoty. Přeložil Štefan ŠALAMON, přeložil Vladimír MÍKA. Praha: Academia, 1968.
BRDIČKA, Miroslav, Ladislav SAMEK a Bruno SOPKO. Mechanika kontinua. Vyd. 2., opr. Praha: Academia, 2000. ISBN 8020007725.
BRDIČKA, Miroslav: Mechanika tekutin.
PAIDOUSSIS, M. P: Fluid - structure interactions: Slender structures and axial flow. Volume 2, Elsevier Ltd. 2004, ISBN 0-12-544361-7.
PIVOŇKA, Josef. Tekutinové mechanismy. Praha: SNTL, 1987.

Recommended reading

ŠOB, František. Hydromechanika. Vyd. 2. Brno: Akademické nakladatelství CERM, 2008. ISBN 978-80-214-3578-0.

Classification of course in study plans

  • Programme N-ETI-P Master's

    specialization FLI , 2 year of study, summer semester, compulsory

Type of course unit

 

Lecture

26 hod., optionally

Teacher / Lecturer

prof. Ing. František Pochylý, CSc.

Syllabus

Unsteady motion of stiff body in real fluid.
Application on motion of piston and valve.
Principle of dynamic damper.
Principle of hydrodynamic damper of rotor systems – tensor of aadded mass, stiffness and damping.
Principle of hydrodynamic bearing – influence of compressibility and cavitation.
Principle of hydrodynamic sealing gap for laminar and turbulent flows.
Stiffness of liquid layer with Taylor vortices.
Stability of pipe with through flow.
Spectral and modal properties of compressible fluid – application on defect detection in pipeline system – searching for the accident based on pressure wave spreading.

Laboratory exercise

13 hod., compulsory

Teacher / Lecturer

prof. Ing. František Pochylý, CSc.

Syllabus

Computation of piston added mass in cylinder filled with liquid – design of dynamic damper of fluid system.
Computation of added effects of fluid on rotor with hydrodynamic damper and journal bearing.
Selfexcited valve vibration circumflowed by liquid.
Experimental determination of added mass during vibration of stiff and elastic body in liquid.