Course detail

Fluid Machinery II

FSI-MS2Acad. year: 2026/2027

The course focuses on the strength control of the designed fluid machine (shaft, impeller, bearings, volute) and the overall structure. The teaching combines analytical calculations with calculations using CFD and FEM analyses.

Language of instruction

Czech

Number of ECTS credits

4

Mode of study

Not applicable.

Guarantor

Ing. David Štefan, Ph.D.

Department

Energy Institute (EÚ)

Entry knowledge

Basic computational parts of elasticity and strength and parts of machines. Basic knowledge of CFD and FEM calculations.

Rules for evaluation and completion of the course

Conditions for graded credit: participation in the exercises. Any absence is compensated according to agreement with the teacher. Preparation of the assigned project.

Aims

The aim of the course is for the student to understand basic strength calculations and strength control of a fluid machine (especially the impeller and volute), the design of basic parts (shafts, bearings.). Another aim is for the student to learn the connection between CFD and FEM calculations of a fluid machine. A partial aim is to introduce students to the use of 3D printing for rapid additive manufacturing of hydraulic parts of a fluid machine for experimental measurements.
The student will achieve confidence in strength control of impellers, volutes and shafts of fluid machines developed to specified parameters.

Study aids

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Černoch, S.: Strojně - technická příručka, jedenácté vydání, SNTL Praha, 1959 (CS)
Janíček, P.: Pružnost a pevmost I, skripta, Vysoká škola zemědělská v Brně, 1976 (CS)
Janíček, P.: Pružnost a pevnost II,skripra, Vysoká škola zemědělská v Brně, 1976 (CS)
Lazarkiewicz, S., Troskolanski, A.: Impeller pumps,Wydawnictwa naukowo-techniczne, Varšava, 1965 (EN)
Nechleba, M.:Vodní turbíny, jejich konstrukce a příslušenství, SNTL, Praha, 1962. (CS)
Pevnostní výpočty v konstrukci vodních turbin a jejich příslušenství. Kolektiv vývojových konstruktétů DZ Blansko. ČKD Blansko 1956-1957 (CS)
Strýček, O.:Hydrodynamické čerpadlá,skripta SVŠT Bratislava, 1988, Bratislava (SK)
Štoll,Č., Kratochvíl, S., Holata, M.:Využití vodní energie, SNTL/ALFA, Praha, 1977. (CS)

Recommended reading

Not applicable.

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

Ing. David Štefan, Ph.D.

Syllabus

1. Strength calculation of a spiral with a circle of stay vanes.
2. Strength calculation of a distributor blade. Calculation of a distribution device with guide vanes.
3. Strength calculation of a shaft of hydraulic machines and a flange connection.
4. Strength calculation of a Francis turbine runner.
5. Strength calculation of a Kaplan turbine runner. Axial turbine.
6. Design of the geometry of the impeller and stator parts of the pump / turbine for strength FEM analysis of the pump / turbine
7. Use of 3D printing for additive manufacturing of hydraulic parts of a fluid machine for subsequent experimental measurements.
8. One-way FSI analysis. Data transfer (pressure load on the impeller) from CFD analysis to FEM analysis.
9. FEM calculation. Evaluation of the FEM calculation. Reactions in bearings (rotor support)
10. Unsteady CFD and FEM calculations of fluid machines (pumps / turbines)
11. Dynamic loading of the pump / turbine rotor.
12. Lifetime estimation (Fatigue tool)
13. Reserve for an invited lecture from industry

Laboratory exercise

13 hod., compulsory

Teacher / Lecturer

Ing. David Štefan, Ph.D.

Syllabus

1. Strength calculation of the hydraulic turbine spiral.
2. Strength calculation of the distributor wheel - guide vanes.
3. Strength calculation of the turbine shaft.
4. Strength calculation of the Francis turbine runner.
5. Strength calculation of the Kaplan turbine runner.
6. Geometry creation for the strength FEM analysis of the pump / turbine
7. 3D printing of the impeller and experimental measurements
8. Modal analysis of the pump / turbine rotor
9. 1-way FSI analysis. Data transfer (pressure load on the impeller) from CFD analysis to FEM analysis. Static FEM analysis setup. FEM calculation. Evaluation of the FEM calculation. Reactions to the bearings (rotor support) - part 1.
10. 1-way FSI analysis. Data transfer (pressure load on the impeller) from CFD analysis to FEM analysis. Static FEM analysis setup. FEM calculation. Evaluation of the FEM calculation. Reactions in bearings (rotor support) – part 2.
11. Transient analysis CFD -> FEM. Dynamic loading of the pump / turbine rotor. Life estimation (Fatigue tool) – part 1.
12. Transient analysis CFD -> FEM. Dynamic loading of the pump / turbine rotor. Life estimation (Fatigue tool) – part 2.
13. Graded credit