# 338-0535/01 – Hydrodynamics and Hydrodynamic Machines (HyDyS)

 Gurantor department Department of Hydromechanics and Hydraulic Equipment Credits 6 Subject guarantor prof. Ing. Jaroslav Janalík, CSc. Subject version guarantor Ing. Jana Jablonská, Ph.D. Study level undergraduate or graduate Requirement Compulsory Year 1 Semester winter Study language Czech Year of introduction 2005/2006 Year of cancellation 2020/2021 Intended for the faculties FMT Intended for study types Follow-up Master
Instruction secured by
HIM0007 Ing. Daniel Himr, Ph.D.
RAU01 Ing. Jana Jablonská, Ph.D.
JAN10 prof. Ing. Jaroslav Janalík, CSc.
KOZ288 Ing. Michal Kozdera, 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 3+3

### Subject aims expressed by acquired skills and competences

The purpose is - the student interconnects their theoretical knowledge of the basic laws of hydrodynamics and their application in practice. Student measures in the department laboratory experiment in the characteristics of pumps and sorting pumps and its comparison with theoretical values. Student determines of the experimentally pressure loss (pressure loss coefficient) for various elements and friction losses (friction coefficient) for different pipes diameters. Another measurement, the student will evaluate the hydraulic hammer, which will again be compared with theoretically calculated values.

### Teaching methods

Lectures
Tutorials
Experimental work in labs

### Summary

Předmět se zabývá problematikou hydrostatiky – Pascalova zákona, tlak plochy a relativním pohybem kapalin. Dále se v předmětu bude zabývat proudění skutečných kapalin, rovnici spojitosti, Eulerova rovnice, Bernoulliho rovnice a její použití v praxi, Hybnostní větou, ale také proudění nenewtonských kapalin, dále se bude zabývat laminárním a turbulentním prouděním skutečných kapalin. Student také získá informace o hydrostatických a hydrodynamických čerpadlech a o jejich pracovních principech.

### Compulsory literature:

Bruce R. Munson, Donald F. Young, Theodore H. Okiishi. Fundamentals of Fluid Mechanics. March: Wiley Text Books, 2002. ISBN 047144250X FOX, R.W., MC DONALD, A.T.: Introduction to Fluid Mechanics, J. Wiley & sons, New York, 1994 ASWATHA NARAYANA, P.A., SEETHARAMU, K.N.: Engineering Fluid Mechanics. Alpha Asience International Ltd., Harrow, U.K., 2005

### Recommended literature:

WHITE, F.M.: Fluid Mechanics, Mc Graw-Hill, New York, 1986

### Other requirements

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### Prerequisities

Subject has no prerequisities.

### Co-requisities

Subject has no co-requisities.

### Subject syllabus:

The Programme of Lectures 1. Basic concepts of fluid mechanics, physical properties of liquids, pressure and pressure forces in the liquid at rest, Euler's equation of hydrostatics. 2. Pressure levels, Pascal law, pressure force acting on the flat and curved surfaces. 3. The forces acting on the object in liquid, Archimedes' law, Fluids in relative calm, linear and rotary motion. 4. Basic concepts hydrodynamics, equations of continuity for one-dimensional and spatial flow, Euler equations of hydrodynamics. 5. Bernoulli's equation for ideal fluid flow, measurement of pressure and velocity in the pipeline. 6. Flow of real fluids, the Navier-Stokes equations, Bernoulli's equation for real fluid gravitational field, the specific energy loss. 7. Laminar flow of Newtonian fluids in circular pipes running down a vertical wall, the flow of no Newtonian fluids, a power equation flow, Bingham equation. 8. Hydraulic friction and local resistances, hydraulic calculation pipeline, pipeline characteristics. 9. Hydraulic calculation of pipes, characteristics of pipes, pipelines branched and circular, uniforms flow in the channel. 10. Liquid outflow from a small orifice, the liquid discharge through large rectangular hole in side wall of the container, emptying of containers. 11. Bernouliho equation for the rotating channel, distribution pumps, centrifugal pump, pump characteristic curves, pump in the piping system, Euler's equation, Head and pressure transport. 12. Characteristics of pumps and pipes, power, pump efficiency, the calculation of the suction head, cavitation, serial and parallel connection of pumps, flow control by throttling and the change in speed, the influence of viscosity. 13. Bernoulli equation for unsteady flow of an incompressible fluid in pipeline, water hammer, the sentence of change of momentum. 14. The resistance of solids, sedimentation velocity of the particle, physical similarity, numerical modeling of flow.

### Conditions for subject completion

Full-time form (validity from: 1960/1961 Summer semester, validity until: 2010/2011 Summer semester)
Min. number of points
Exercises evaluation and Examination Credit and Examination 100 (100) 51
Exercises evaluation Credit 30 (30) 0
Laboratory work Laboratory work 12  0
Written exam Written test 18  0
Examination Examination 70 (70) 0
Written examination Written examination 30  0
Oral Oral examination 40  0
Mandatory attendence parzicipation:

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### Occurrence in study plans

Academic yearProgrammeField of studySpec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2014/2015 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 1 Compulsory study plan
2013/2014 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 1 Compulsory study plan
2012/2013 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 1 Compulsory study plan
2011/2012 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 1 Compulsory study plan
2010/2011 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 1 Compulsory study plan
2009/2010 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 1 Compulsory study plan
2008/2009 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 1 Compulsory study plan
2007/2008 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 1 Compulsory study plan
2006/2007 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 1 Compulsory study plan
2005/2006 (N3909) Process Engineering (2807T004) Chemical Engineering P Czech Ostrava 1 Compulsory study plan

### Occurrence in special blocks

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