338-0545/03 – Modeling and Simulation of Fluid Systems (MoSi)

Gurantor departmentDepartment of Hydromechanics and Hydraulic EquipmentCredits5
Subject guarantorprof. RNDr. Milada Kozubková, CSc.Subject version guarantorprof. RNDr. Milada Kozubková, CSc.
Study levelundergraduate or graduateRequirementCompulsory
Study languageCzech
Year of introduction2014/2015Year of cancellation
Intended for the facultiesFSIntended for study typesFollow-up Master
Instruction secured by
LoginNameTuitorTeacher giving lectures
RAU01 Ing. Jana Jablonská, Ph.D.
KOZ30 prof. RNDr. Milada Kozubková, CSc.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 2+3
Part-time Credit and Examination 8+4

Subject aims expressed by acquired skills and competences

Students will learn methods of electro-hydraulic analogy, circuits RLC. Their task will be to design hydraulic circuits, to solve them using numerical methods Matlab-Simulink and SimHydraulics. They will analyze the results, evaluate the accuracy by comparison the theory and experiment or possibly reconstruct the districts for better solutions. In applications they become familiar with the modeling of dynamic phenomena in the flow pipelines using methods of numerical analysis.

Teaching methods

Experimental work in labs


The course focuses on the issues of electrohydraulic analogy and solutions of RLC circuits by numerical methods using Matlab-Simulink-Simscape. Part of the course is a measurement of hydraulic variables of selected hydraulic and pneumatic circuits and develop proposals to solve them both statically and dynamically. Part of the course is devoted to the physical properties of fluids and their dynamic behavior.

Compulsory literature:

MATLAB User's Guide. The Mathworks, Inc., USA, www.mathworks.com.

Recommended literature:

MILLER, D.S. Internal Flow Systems. BHRA (Information Servis). 1990. ISBN 0-947711-77-5.

Way of continuous check of knowledge in the course of semester

credits of 3 seminar papers: 1. measurement of static characteristics of pipelines and pipeline simulation in Matlab - 10 points 2. Measurement of static characteristics of pumps, pumps connected in parallel and series, simulation in Matlab - 15 points 3. Hydraulic shock measurement and simulation in Matlab - 10 points oral and written part of the exam - 65 points


Other requirements

Exam questions 1. Modeling and identification 2. Electrohydraulic analogy of hydraulic and pneumatic resistors, Shifting of resistors R, L, C 3. Software for solving hydraulic and pneumatic circuits, Matlab 4. Foundation Library Hydraulic + Pneumatic, SimHydraulics 5. Resistance to movement - friction resistance, friction resistance in piping 6. Circuit for friction loss determination 7. Calculation of pressure drop, Hydraulics, Pneumatic, calculation of static characteristics 8. Static characteristics - simple piping, serial, parallel system 9. Local resistance, loss coefficient, determination of calibration curve 10. Elbow, ball valve, determination of loss and flow coefficient 11. Models of hydraulic elements, opening of constant cross section (orifice plate), linear hydraulic resistance 12. Reduction, knee, opening of variable section 13. Models of pneumatic elements, pneumatic orifice of constant cross section (orifice), 14. Pumps - pumps, rotary pumps, theoretical analysis, basic parameters of pumps, pump characteristics 15. SimHydraulics centrifugal pump, 1D and 2D pump characteristics WILO RS 25/4 230 V PN 10 16. Circuits with pumps, circuit - pressure drop, circuit - static characteristic 17. Dynamic resistances, acceleration resistance, hydraulic inductance of liquid column in SimHydraulics 18. Deflection support and hydraulic capacity, gas deflection resistance, tank capacity, hydraulic fluid capacity in SimHydraulics 19. Mathematical model of liquid column, R- (L + C) cell (so-called. T cell), Numerical solution - SimHydraulics 20. Segmented piping, diagram, application 21. Sound velocity in duct, modulus of elasticity, air content 22. Hydraulic shock, experimental investigation of hydraulic shock in water, solution by electrohydraulic analogy 23. Hydraulic accumulator, hydraulic gas accumulator resistors, hydraulic shock with accumulator


Subject has no prerequisities.


Subject has no co-requisities.

Subject syllabus:

Program of the subject for individual weeks (blocks): (osnova) 1. Energy transfer, types of energy, energy transfer efficiency, modeling and identification, hydraulic and pneumatic circuits, solution methods, software 2. Resistance to movement, friction resistance, pressure drop and static pipeline characteristics, vertical piping model, calculation of hydraulic characteristics in Matlab-Simulink-Simscape 3. Local resistances (elbow, orifice, valve, tap), orifice calibration curve, static characteristic of fluid elements with local losses 4. Measurement of static characteristics of pipelines, local losses, determination of resistance 5. Valve control, local resistance in a tire, calculation of characteristics in a tire in Matlab-Simulink-Simscape 6. Pump, pump characteristics, pump shifting, suction, 7. Continuous flow, resistance to motion, resistance to acceleration, resistance to deformation and capacity, marking of hydraulic and pneumatic resistors, simulation of dynamic characteristics in Matlab 8. Mathematical model of liquid column, T-cell, segmented piping - Matlab 9. Experimental and mathematical modeling of hydraulic shock 10 Influence of air in liquid on elastic modulus and dynamics of hydraulic circuit 11. Accumulator and aerator - mathematical model, definition, 12. Pneumomotors and hydraulic motors - mathematical models 13. Transmission, Laplace and Fourier transform, system stability, physical importance of first and second order transmission, Matlab modeling. 14. Consultation of individual programs, presentation

Conditions for subject completion

Full-time form (validity from: 2015/2016 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Credit and Examination Credit and Examination 100 (100) 51
        Credit Credit 35  24
        Examination Examination 65  27
Mandatory attendence parzicipation: 80% attendance at seminars

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2016/2017 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics P Czech Ostrava 1 Compulsory study plan
2016/2017 (N2301) Mechanical Engineering (2302T043) Hydraulics and Pneumatics K Czech Ostrava 1 Compulsory study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner