Educational guide
IDENTIFYING DATA 2020_21
Subject FLUID MECHANICS FOR ENGINEERING Code 00707035
Study programme
0707 - G.INGENIERÍA ELECT. INDUSTRIAL Y AUTOMÁTICA
Descriptors Credit. Type Year Period
6 Compulsory Fourth Second
Language
Castellano
Prerequisites
Department QUIMICA Y FISICA APLICADAS
Coordinador
FERNÁNDEZ RAGA , MARÍA
E-mail mferr@unileon.es
mcpalc@unileon.es
Lecturers
FERNÁNDEZ RAGA , MARÍA
PALENCIA COTO , MARÍA COVADONGA
Web http://agora.unileon.es
General description
Tribunales de Revisión
Tribunal titular
Cargo Departamento Profesor
Presidente QUIMICA Y FISICA APLICADAS FRAILE LAIZ , ROBERTO
Secretario QUIMICA Y FISICA APLICADAS CEPEDA RIAÑO , JESUS RAMIRO
Vocal QUIMICA Y FISICA APLICADAS BURDALO SALCEDO , GABRIEL
Tribunal suplente
Cargo Departamento Profesor
Presidente QUIMICA Y FISICA APLICADAS MARCOS MENENDEZ , JOSE LUIS
Secretario QUIMICA Y FISICA APLICADAS CALVO GORDALIZA , ANA ISABEL
Vocal QUIMICA Y FISICA APLICADAS ZORITA CALVO , MIGUEL

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
• Capacity for assembling and practical laboratory experiences. B5672
• 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
• Elaboration and defense of arguments and resolution of fluid mechanics problems by application of the acquired knowledge, in a reasoned and professional manner. B5656
• Ability to gather and interpret relevant data to make judgments that include a reflection on relevant social, scientific or ethical issues. C3
• Individual and team work. B5668
• Analysis and troubleshooting. B5656
• Ability to present their work clearly and attractively. C4
• Ability to transmit information, ideas, problems and solutions to a specialized or non-specialized public, orally or in writing. C4
B5655
C5
B5653
B5658
B5663
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
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
 
Laboratory practicals
Problem solving, classroom exercises
Practicals using information and communication technologies (ICTs) in computer rooms
Description
Tutories asked in class, and question solving at the class. MOst of the exercises solved in class,

Assessment
  Description Qualification
Laboratory practicals The tasks of every practice need to be completed on time. The answers should be correct. 5%
Practicals using information and communication technologies (ICTs) in computer rooms Continuous assessment and evaluation of the report of activities presented. 15 %
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:

  • Continuous evaluation of the student's knowledge throughout the course will be done through the individual performance of the mixed tests and the work requested during the laboratory and computer practices (In certain situations they may be presented and evaluated in teams).
  • The continuous evaluation through the exercises in face-to-face activities can not be substituted in any case by the external realization of works or exercises and presentation to the teacher.

Method of global qualification of the subject:

  • To be able to pass the subject it is necessary that the grade of the tests that are made throughout the course, which are scored from 0 to 10 points, is equal to or greater than 5 points. Only in the case of having these tests approved can you add the corresponding grade to the practices. In the case of suspending any of these tests, you must re-perform a test that understands the concepts that have not been passed.
  • If the marks of the tests obtained during the continuous evaluation does not arrived to 5 points (out of 10), the final grade of the subject will correspond to the failed part. Not average will be done with a failed part.
  • If the student does not pass the subject in the ordinary call, to pass the subject must pass the final test that will include the set of the topics explained in the subject. To do this you must obtain more than 5 points in a qualified exam on a scale of 0 to 10. In no case the note of the partial tests done during ordinary period will be saved to average the final extraordinary test.

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.
  • The same procedure described will be followed to globally qualify the subject that in the ordinary call, adding the practice grade with the group project weighted to 20% in case of passing the extraordinary exam test. There will be only one exam for all students ( not parts) with questions of all the course, that should be pass with more than 5 points obtained from an exam whose maximum mark will be 10 points.

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
PRINCIPLES OF PHYSICS / 00712003