Educational guide  
IDENTIFYING DATA  2020_21  
Subject  FLUID MECHANICS FOR ENGINEERING  Code  00707035  
Study programme 


Descriptors  Credit.  Type  Year  Period  
6  Compulsory  Fourth  Second 

Language 


Prerequisites  
Department  QUIMICA Y FISICA APLICADAS 

Coordinador 

mferr@unileon.es mcpalc@unileon.es 

Lecturers 


Web  http://agora.unileon.es  
General description  
Tribunales de Revisión 


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 nonspecialized public, orally or in writing.  C4 

B5655 

C5 

B5653 

B5658 B5663 

C2 
Contents 
Topic  Subtopic 
Block I. FLUID STATICS  Unit 1: FUNDAMENTALS OF MECHANICAL FLUID. Brief summary of the history of fluid mechanics (hydraulic versus fluidmechanical). Definition of fluid. Newtonian and nonNewtonian 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. HagenPoiseuille 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. HardyCross 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 heightflow (HQ) curve, performanceflow curve, powerflow 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 


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.

ADDENDUM 
Contingency plan due to COVID19 emergency conditions that prevents from presence based teaching 
COVID19 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  
