Educational guide | ||||||||||||||||||||||||||||||||||||||||
IDENTIFYING DATA | 2020_21 | |||||||||||||||||||||||||||||||||||||||
Subject | FLUID MECHANICS FOR ENGINEERING | Code | 00707035 | |||||||||||||||||||||||||||||||||||||
Study programme |
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Descriptors | Credit. | Type | Year | Period | ||||||||||||||||||||||||||||||||||||
6 | Compulsory | Fourth | Second |
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Language |
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Prerequisites | ||||||||||||||||||||||||||||||||||||||||
Department | QUIMICA Y FISICA APLICADAS |
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Coordinador |
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mferr@unileon.es mcpalc@unileon.es |
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Lecturers |
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Web | http://agora.unileon.es | |||||||||||||||||||||||||||||||||||||||
General description | ||||||||||||||||||||||||||||||||||||||||
Tribunales de Revisión |
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Competencias |
Code | |
A18672 | |
B5653 | |
B5655 | |
B5656 | |
B5658 | |
B5663 | |
B5668 | |
B5672 | |
C2 | |
C3 | |
C4 | |
C5 |
Learning aims |
Competences | |||
• Knowledge of the basic principles of fluid mechanics and their application to solving problems in the field of engineering. Calculation of pipes, channels and fluid systems. | A18672 |
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• Capacity for assembling and practical laboratory experiences. | B5672 |
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• Understanding of knowledge in the area of fluid mechanics supported by advanced textbooks, including aspects involving knowledge from the vanguard of the industrial sector. | A18672 |
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• Elaboration and defense of arguments and resolution of fluid mechanics problems by application of the acquired knowledge, in a reasoned and professional manner. | B5656 |
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• Ability to gather and interpret relevant data to make judgments that include a reflection on relevant social, scientific or ethical issues. | C3 |
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• Individual and team work. | B5668 |
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• Analysis and troubleshooting. | B5656 |
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• Ability to present their work clearly and attractively. | C4 |
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• Ability to transmit information, ideas, problems and solutions to a specialized or non-specialized public, orally or in writing. | C4 |
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B5655 |
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C5 |
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B5653 |
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B5658 B5663 |
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C2 |
Contents |
Topic | Sub-topic |
Block I. FLUID STATICS | Unit 1: FUNDAMENTALS OF MECHANICAL FLUID. Brief summary of the history of fluid mechanics (hydraulic versus fluid-mechanical). Definition of fluid. Newtonian and non-Newtonian fluids. Dimensional analysis and metric systems: International System (S.I.), Technical System (S.T.) and Cegesimal System (CGS). Fluid properties: absolute and specific density, pressure, compressibility, specific weight, definition of viscosity (although it will be explained in more detail in fluid dynamics), surface tension (intermolecular forces and capillary with Jurin law). Topic 2: STATIC FLUID. Fluid pressure. Height or pressure load. Fundamental equation of hydrostatics, Pascal's theorem. Communicating vessels. Absolute pressure and gauge pressure and pressure measuring devices: barometer and manometer. Hydrostatic forces on flat submerged surfaces: dams and gates Floatation and stability: Archimedean Principle. |
Block II. FLUID DYNAMICS | Unit 3: KINEMATICS OF FLUIDS: Description of current lines, trajectories. Fluid Flow Fundamentals Flow and instrumentation concept. Continuity equation. Viscosity and Newton's Law for viscosity. Definition of ideal / real fluids. Topic 4: DYNAMIC FLUID: Bernoulli equation in ideal fluids: deduction and limitations in its use in flows Energy terms of Bernoulli's equation. Scheme of energy lines in ideal fluids Applications of the Bernoulli equation: Torricelli's theorem, Mariotte bottle, siphon, infiltrometer and Magnus effect. Flow measurement: Pitot tube, Prandtl tube, Venturi tube. Topic 5: MECHANICAL FLUID ANALYSIS: Reynolds number. Laminar or turbulent flow. Distribution od speed. Friction. Stokes' law. Terminal velocity. Boundary layer: concept and definition. Shape resistances. Hagen-Poiseuille equation. Topic 6: FLOW AND LOAD LOSSES IN HYDRAULIC SYSTEMS Bernoulli equation for real fluids. Head loss in facilities. Losses or gains corresponding to pumps or turbines. Power and performance. Hydraulic resistors placed in series or parallel. Calculation of primary losses. Calculation of secondary losses. Energy diagram for real fluids: total height line and piezometric line. Topic 7: PIPING SYSTEMS ENGINEERING Valve types. Pumps and turbines placed in series or parallel. Symbology in hydraulic circuits. Pipe networks. Hardy-Cross method. Fluid instrumentation and measurements Instrumentation calibration. |
Block II. HYDRAULIC MACHINES | Topic 8: PROBLEMS IN FACILITIES Water hammer effect: definition and calculation Water hammer prevention systems. Pipe cavitation: definition Cavitation prevention systems. Topic 9: HYDRAULIC PUMPS Types: Centrifuges, axial and volumetric. Characteristic curves (manometric height-flow (HQ) curve, performance-flow curve, power-flow curve and Net Positive Suction Head (NPSH) curve). Selection of pumps and turbines. Pressure and flow height calculation provided with various pumps installed. |
Planning |
Methodologies :: Tests | |||||||||
Class hours | Hours outside the classroom | Total hours | |||||||
Practicals using information and communication technologies (ICTs) in computer rooms | 2 | 0 | 2 | ||||||
Laboratory practicals | 9 | 0 | 9 | ||||||
Problem solving, classroom exercises | 20 | 40 | 60 | ||||||
Lecture | 30 | 45 | 75 | ||||||
Mixed tests | 4 | 0 | 4 | ||||||
(*)The information in the planning table is for guidance only and does not take into account the heterogeneity of the students. |
Methodologies |
Description | |
Practicals using information and communication technologies (ICTs) in computer rooms | Practises done with computer and mobile phone |
Laboratory practicals | It is necessary to attend the laboratory and complete the exercises required in each practise. |
Problem solving, classroom exercises | Some exercises will be done in class, and other to be solved by the students at home, but the solutions will be given through MOODLE or in class. |
Lecture | Some lessons trying to explain the theorical conceps. |
Personalized attention |
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Assessment |
Description | Qualification | ||
Practicals using information and communication technologies (ICTs) in computer rooms | Continuous assessment and evaluation of the report of activities presented. | 15 % | |
Laboratory practicals | The tasks of every practice need to be completed on time. The answers should be correct. | 5% | |
Mixed tests | Written exam with theoretical and practical knowledge. Test with problems |
80% | |
Other comments and second call | |||
The evaluation system of the subject will have a mixed character, in accordance with the following criteria:
Method of global qualification of the subject:
The final grade will correspond to the value of the average of the tests carried out and approved, taking into account their weighting, which will represent 80% of the final grade, plus 20% corresponding to the grade obtained during the practices. Second or extraordinary test.
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ADDENDUM |
Contingency plan due to COVID-19 emergency conditions that prevents from presence based teaching |
COVID-19 Teaching Guide Addendum Access Link |
Sources of information |
Access to Recommended Bibliography in the Catalog ULE |
Basic |
Cengel, Y.; Cimbala, J., Mecánica de fluidos, Mc. Graw Hill, 2012 Cengel, y. Cimbala, J., Mecánica de fluidos fundamentos y aplicaciones 4ª Edición, , 2019 MATAIX, Mecánica de fluidos y máquinas hidráulicas, Ed. del Castillo, 1993 Giles R.V.; Evett J.B:; Liu C., Mecánica de los fluidos e hidráulica, Mc. Graw Hill (colección Schaum), 2010 |
Complementary | |
Recommendations |
Subjects that it is recommended to have taken before | ||
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