Course detail

Fluid Machinery II

FSI-MS2Acad. year: 2019/2020

The course is focused on the analysis of designed fluid machine (shaft, runner, bearings, spiral case) and overall construction.

Learning outcomes of the course unit

Students will be able to create basic parts of fluid machines taking into account the stress analysis.


Basic computational parts of elasticity and strength and parts of machines.


Not applicable.

Recommended optional programme components

Not applicable.

Recommended or required reading

Nechleba, M.:Vodní turbíny, jejich konstrukce a příslušenství, SNTL, Praha, 1962. (CS)
Štoll,Č., Kratochvíl, S., Holata, M.:Využití vodní energie, SNTL/ALFA, Praha, 1977. (CS)
Strýček, O.:Hydrodynamické čerpadlá,skripta SVŠT Bratislava, 1988, Bratislava (SK)
Lazarkiewicz, S., Troskolanski, A.: Impeller pumps,Wydawnictwa naukowo-techniczne, Varšava, 1965 (EN)

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

Course-unit credit is conditional on participation in the seminars and submitting written reports of given computational processes.

Language of instruction


Work placements

Not applicable.


The aim of the course is to familiarise students with basic stress analysis of fluid machines, designed according to the given parameters (especially runner and spiral case), and the proposal of basic parts (shaft, bearings).

Specification of controlled education, way of implementation and compensation for absences

Attendance at practicals is compulsory. Absence in justified cases has to be compensated for via a spacial task.

Classification of course in study plans

  • Programme M2I-P Master's

    branch M-FLI , 2. year of study, summer semester, 4 credits, compulsory

Type of course unit



26 hours, optionally

Teacher / Lecturer


1. Stress analysis of the spiral case with support vanes.
2. Calculus of guide apparatus of action turbines.
3. Shaft of the hydraulic machines, placing of the shaft in bearings.
4. Stress analysis of the Francis turbine runner.
5. Stress analysis of the Kaplan turbine runner. Bulb turbines.
6. Design of the principal parts of the Pelton turbine.
7. Serial and parallel insertion of pumps, regulation of discharge, pumping of one impeller into several branches, operational point determination on pump characteristics.
8. Computation of volumetric losses in sealing rings, computation of suffing-boxes and a balancing disc. Impeller pumps accessory.
9. Stress analysis of the shaft (deflection and curling determination), design of bearings.
10. Construction of hydrodynamic pumps, full characteristics of a pump, the static
balancing of rotors.
11. Constructional support (the distaff projections, output spiral throat).
12. Special pumps (axial, swirl).
13. Hydrostatic pumps and their design.

Laboratory exercise

13 hours, compulsory

Teacher / Lecturer


1. Stress analysis of a spiral case of a water turbine.
2. Stress analysis of a vane in the distributor.
3. Stress analysis of a turbine shaft.
4. Stress analysis of a Francis turbine runner.
5. Bulb turbine - the computation of a force response in placing.
6. Stress analysis of a Kaplan turbine runner.
7. Design of bearings.
8. Design of Pelton turbine (runner, jet).
9. Volume losses computation, suffing box computation.
10. Computation of balance piston for axial thrust balancing.
11. Shape of diffuser and returned-passage vanes proposal (in
conformal depiction, transformation on real coordinates).
12. Conus projection of inlet passage blades of given impeller.
13. Stress analysis of a shaft (deflection, curling).