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 |
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:
Recommended literature:
WHITE, F.M.: Fluid Mechanics, Mc Graw-Hill, New York, 1986
Way of continuous check of knowledge in the course of semester
E-learning
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
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction