Course detail
Fluid Structure Interactions
FSI-MZH Acad. year: 2021/2022 Summer semester
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
Supervisor
Department
Learning outcomes of the course unit
The knowledge of applied hydrodynamics and the basic hydraulic elements and mechanisms principle.
Prerequisites
Basics in hydrodynamics, thermo mechanics and the body dynamics
Planned learning activities and teaching methods
The course is taught through lectures explaining the basic principles and theory of the discipline. Teaching is suplemented by practical laboratory work.
Assesment methods and criteria linked to learning outcomes
Credit and Examination (oral exam)
Aims
Project, optimize and improve the creative thought of students in the hydraulic and pneumatic devices design.
Specification of controlled education, way of implementation and compensation for absences
Seminars and written tasks on the excercises
The study programmes with the given course
Programme N-ETI-P: Power and Thermo-fluid Engineering, Master's
specialization FLI: Fluid Engineering, compulsory
Type of course unit
Lecture
26 hours, optionally
Teacher / Lecturer
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 hours, compulsory
Teacher / Lecturer
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.