516-0907/02 – Physics of Fluids (FT)
| Gurantor department | Institute of Physics | Credits | 0 |
| Subject guarantor | prof. Ing. Libor Hlaváč, Ph.D. | Subject version guarantor | prof. Ing. Libor Hlaváč, Ph.D. |
| Study level | postgraduate | Requirement | Optional |
| Year | | Semester | winter + summer |
| | Study language | Czech |
| Year of introduction | 2005/2006 | Year of cancellation | 2011/2012 |
| Intended for the faculties | HGF | Intended for study types | Doctoral |
Subject aims expressed by acquired skills and competences
Student is able to analyse, evaluate, predict and consider various processes taking place in fluids, especially regarding their utilization in practice. He is able to apply theoretical and experimental approach for studying of these processes and problems.
Teaching methods
Lectures
Individual consultations
Summary
The topics of the subject are as follows: structure of fluids, mechanics of
fluids, motion of viscous fluid, wave processes in fluids, transmission
phenomena in fluids, motion of solid particle in fluids, surface phenomena,
theory of physical similarity, electric and thermal properties of fluids,
methods of flow visualization, liquid atomization, burning and combustion of
atomized liquid fuels, fundamentals of water jet as tool for material cutting
and machining.
Compulsory literature:
1. Hughes, W.F.; Brighton, J.A. Theory and problems of fluid dynamics. Schaum’s outline series in engineering, New York: McGraw-Hill Book Company, 1967.
2. Pnueli, David; Chaim, Gutfinger; Fluid mechanics; Cambridge; New York : Cambridge University Press, 1997.
3. Stehen H, Davis; Parviz, Moin; Anual review of fluid mechanics, Palo Alto : Annual Reviews, 2006.
4. Knapp, R.T., Daily, J.W., Hammitt, F.G.: Cavitation. McGraw-Hill Book Company, New York, 1970
Recommended literature:
1. Cohen, I., Kundu, P.: Fluid Mechanics, Elsevier, 2004
2. Proceedings of the BHRGroup conference series since 1972 (International Symposium on Jet Cutting Technology, later International Conference on Jet Cutting Technology, then Jetting Technology International Conference, now Water Jetting International Conference).
3. Proceedings of the WJTA organized conference series since 1981 (U.S. Water Jet Symposium, U.S. Water Jet Conference, American Water Jet Conference, WJTA American Waterjet Conference, since 2003 only CD proceedings).
4. Proceedings of the ISWJT organized conference series since 1989 in Asia - Pacific Rim International Conference on Water Jet Technology.
Way of continuous check of knowledge in the course of semester
Vypracování rešeršní práce v rozsahu 20 - 30 stran z vybrané kapitoly, popřípadě kapitol. Tato práce je vstupní podmínkou pro vykonání zkoušky.
E-learning
Other requirements
Systematic preparation for lectures.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
1. STRUCTURE OF LIQUIDS
Characteristics of the fluids. Ideal and real gases tekutina.Vlastnosti
and liquids. Compressibility.
2. MECHANICS OF FLUIDS
The basic equation of hydrostatics. The rotation of liquid in a gravitational field.
Hydrodynamics of ideal fluids. Continuum. The forces of surface and volume. Tensor
tension and its properties. The general equations of fluid motion. Equation
continuity.
3. MOVEMENT viscous fluid
Viscosity. The stress tensor for a viscous fluid. Navier-Stokes equations.
Thermal processes in the flow of viscous fluid. Vortex filament. Models of
vortices. Turbulence. Reynolds number. Boundary layer. The flow of fluid pipes.
Poseiullova rovnice.Termodynamické processes in the flow.
4. WAVE PROCESSES IN fluids
Waves of finite amplitude. Sound propagation in fluids. Shock wave. Spot
detonation. Ultrasonic waves.
5. Transport Phenomena in Fluids
Heat transfer by convection. Thermal conductivity of an ideal gas. Diffusion. Fick
laws.
6. MOVEMENT Solid particles in fluids
Drift motion. Distribution according to particle size. Methods of detecting pollutants.
Ecological aspects. Movement of gas bubbles in the liquid.
7. SURFACE PHENOMENA
Surface tension. Osmosis. Special fluids. Superfluid helium.
Ferromagnetic fluid. Liquid crystals.
8. THEORY OF PHYSICAL SIMILARITIES
Basic equations of the theory of similarity. The rule of substitution variables
and differential variables. Similarity theory as the basis of the experiment.
Derivation of the similarity criteria. Methods of analysis and application dimensions.
9. ELECTRICAL AND THERMAL PROPERTIES OF LIQUIDS
Electrical conductivity of electrolytes. Electrical properties of gases. Discharge
in gases. Molecular heat liquids. Phonons. Thermal expansion of fluids.
Thermal conductivity of fluids.
10. METODY FLOW VISUALIZATION
The introduction of particles into the liquid. Surface optékání bodies. Effect
optical properties of liquids. Optical visualization methods (shadow,
interferometric and šlírová).
11.ROZPRAŠOVÁNÍ LIQUIDS
Disintegration of liquid beams. Spraying liquids. Types of spray liquids.
Methods of spraying liquids. Methods of measuring the size of drops.
Spray paint coatings, agricultural crops, aerosol
nebula in medicine. Prepare a mixture of combustion engines. Physical preparation
liquid fuels for combustion.
12.HOŘENÍ AND BURNING OF LIQUID FUELS spray
Ignition rozprášeného liquid fuel. Burning liquid fuel droplets. Time
burnout drop and resize drops burning liquid fuel. Influence
external conditions on the burning droplets. Evaporation of drops of liquid fuel.
The theory of burning fuel droplets. Burning fuel spray droplets. Dissemination
rozprášeného flame of liquid fuel and its structure.
13.NENEWTONSKÉ FLUIDS
Flow curves. Measurement of flow curves - rheometer. Rheological models
non-Newtonian fluids.
14.VYSOKOENERGETICKÉ LIQUID BEAM
Methods of generation. Methods of identification. Types of interaction with the material.
Methods of measuring beam parameters. Basic and special applications
liquid beams.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
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