338-0538/01 – Applied Fluid Mechanics (AMT-FBI)
| Gurantor department | Department of Hydromechanics and Hydraulic Equipment | Credits | 5 |
| Subject guarantor | Ing. Jana Jablonská, Ph.D. | Subject version guarantor | Ing. Jana Jablonská, Ph.D. |
| Study level | undergraduate or graduate | Requirement | Choice-compulsory |
| Year | 1 | Semester | summer |
| | Study language | Czech |
| Year of introduction | 2006/2007 | Year of cancellation | 2023/2024 |
| Intended for the faculties | FBI | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
The goal is to familiarize students with experimental and numerical methods for solving the application of Hydromechanics to the fire equipment issue. Students will analyze the characteristics of series and parallel arranged lines, hydraulic hammer, pump specific energy separate and arranged in series and parallel case and power flow on surface, where they will at first dealt with a steady state follows a time-dependent tasks. They will separately compile various located tasks in the software Matlab-Simulink and then compare the results with measured values from the experiment, the student performed in the laboratory department. Results will be compared and evaluated at the defense of the test.
Teaching methods
Lectures
Tutorials
Summary
The course examines the application of the foundations of Hydromechanics to the the following areas:
- hydraulic-lines in steady and unsteady state (hydraulic shock) - practical problems, experimental measurements, calculations, using available software (Matlab-Simulink), comparison of mathematical a experimental output
- feeding equipment (mainly pumps), specific energy pump, Order by pump - theoretical and practical proposals for a system pump, complicated circuits with pumps in Matlab-Simulink
methods for solving of pressure forces the fluid flow on general areas
Compulsory literature:
Recommended literature:
MATLAB User's Guide. The Mathworks, Inc., USA, www.mathworks.com
Additional study materials
Way of continuous check of knowledge in the course of semester
Seznam otázek ke zkoušce
První otázka – měření
1. Měření viskozity zařízením Rheocalc
2. Měření statických charakteristik potrubí, sériové řazení
3. Měření statických charakteristik potrubí, paralelní řazení
4. Měření hydraulického rázu
5. Měření charakteristik čerpadel sériové zapojení
6. Měření charakteristik čerpadel paralelní zapojení
Druhá otázka – SimHydraulics
1. Fyzikální vlastnosti kapalin a jejich měření - hustota
2. Fyzikální vlastnosti kapalin a jejich měření - viskozita
3. Jjednoduché potrubí, odpor proti pohybu, třecí odpor, místní odpor, tlakový spád a statická charakteristika potrubí
4. Program SimHydraulics, prvky v SimHydraulics,
5. Simulace tlakového spádu v programu SimHydraulics, prvky v SimHydraulics, výpočet tlakového spádu
6. Simulace statických charakteristik v programu SimHydraulics, prvky v SimHydraulics, , výpočet statické charakteristiky
7. Výpočet statické charakteristiky rozvětvené nebo okruhované sítě
8. Simulace dynamických charakteristik v programu SimHydraulics, neustálené proudění, odpor proti pohybu, odpor proti zrychlení, odpor proti deformaci a hydraulická kapacita, značení hydraulických odporů
9. Řešení hydraulického rázu, T – článek, dělené potrubí (Segmented popelíne), rozváděč, řízení rozváděče, numerické řešení – SimHydraulics, rychlost zvuku v potrubí
10. Řešení dynamiky složitého hydraulického obvodu užitím SimHydraulics, význam počtu T článků resp. segmentů na řešení průběhu tlaku
11. Řešení obvodu s čerpadly, odstředivé čerpadlo v SimHydraulics, 1D a 2D charakteristika
12. Obvody s čerpadly, obvod - tlakový spád s čerpadlem, statická charakteristika s čerpadlem, hydraulický ráz s čerpadlem
13. Řazení čerpadel v SimHydraulics, sériové, paralelní, obvod
14. Hybnost vodního paprsku, silové účinky proudící tekutiny na plochy a tělesa, věta o změně hybnosti, aplikace věty o změně hybnosti
15. Silové účinky proudící tekutiny na obecné plochy a tělesa, matematický model proudění tekutin, přenos hmoty, hybnosti, okrajové podmínky, podmínky vstupu a výstupu, prvky sítě, metody matematického modelování turbulentního proudění
E-learning
Other requirements
There are no other requirements for the student.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Lectures
1. Physical properties of liquids and their measurements (density, viscosity liquids), the dependence on temperature a pressure
2. Static characteristics of hydraulic systems, simple lines, resistance to motion, friction, local resistance, a static pressure drop, characteristics of tubes
3. Simulation of pressure drop and static characteristics in the program SimHydraulics, SimHydraulics elements, calculation of the pressure gradient, calculation of static characteristics
4. Calculation of static characteristics of branched or complex network
5. Simulation of dynamic characteristics in the program SimHydraulics, unsteady flow, resistance to motion, resistance to acceleration, deformation resistance and hydraulic capacity, symbols of hydraulic resistance
6. Solving hydraulic shock, T -element, segmented pipeline, distributor, distributor control, numerical solutions - SimHydraulics, the speed of sound in pipes
7. Control elements
8. Solution of complex dynamics of hydraulic circuit using SimHydraulics
9. Solving a circuit with pumps, centrifugal pump in the SimHydraulics, 1D a 2D characteristics
10. Circuits with pumps, circuit - pressure drop, static characteristics, hydraulic shock
11. Ordering of pumps - serial, parallel, circuit
12. The momentum of water jet, the effects of power flowing fluid on surfaces and solids, the theorem of change of momentum, the application of theorems on the momentum exchange
13. Power effects of fluid flow on general surfaces and solids, the mathematical model of fluid flow, mass transfer, momentum, boundary conditions, conditions of entry a exit, network elements, methods of mathematical modeling of turbulent flow
14. Pressure forces on plate due to fluid flow from the nozzle - examples
Exercises
1. Bernoulli's equation for ideal and real fluid loss calculation, Reynolds numbers, the coefficient of friction.
2. Measurement of physical properties of fluids - a program, static characteristics of pipes and arranged pipe - program.
3. Evaluation of measurement of physical properties of liquids in Excel, the evaluation of static characteristics of pipes and arranged pipe in the Excel.
4. Introduction to the Matlab, calculate the pressure gradient on one pipe.
5. Calculation of static characteristics of a pipe, creating subsystem variable input signal.
6. Transfer data to the Excel, the characteristics of serial and parallel arranged pipes and compared with Excel.
7. Measurement of of hydraulic shock - characteristics of pumps and arranged pumps - the program.
8. Evaluation of hydraulic shock measurement, determination of basic parameters at steady state of hydraulic shock.
9. Modelling of hydraulic shock for unsteady state, determine the effect of equivalent length, the coefficient of discharge valve and air flow on hydraulic shock.
10. Evaluation of measurement of pumps, serial and parallel arranging of pumps in the Excel, calculate power input, power and specific energy of pumps
11. Modelling of centrifugal pumps in Matlab and its ability to enter - 1D and 2D characteristics, identification of the basic parameters in the steady state of the pump.
12. Enter the catalog of the pump, affine relations for the basic parameters of the pump.
13. Modeling series and parallel arranging of pumps.
14. Comparison of the modeled arranging of pumps with the calculation in the Excel.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction