FLUID MECHANICS
Learning outcomes of the course unit
The course provides the students with the necessary knowledge related with fluid mechanics in the context of classical mechanics. The students will be able to solve the main technical problems related with the interaction between fluids and structures and with pressurized flow. Numerical exercises about the topics listed in the program will be developed.
Prerequisites
Differential analysis AB and C, Geometry, General Physics AB.
Course contents summary
Fluids and fluid behaviour. Definition of fluid as a continuum. Fluid mechanics and units. Stresses in a continuum. Density and specific weight. Compressibility. Surface tension. Viscosity. Gas sorption. Vapor pressure of a fluid.
Dimensional analysis.
Fluid statics. Internal stresses in fluids at rest. Differential analysis of fluid statics. Finite control volume analysis of fluid statics. Pressure variation of incompressible fluids. Hydrostatic force on plane and curved surfaces. Buoyancy.
Fluid kinematics. Velocity and acceleration fields. Pathlines, streamlines, streaklines. Continuity equation. Flow regimes
Basic fluid dynamics. Differential and finite control volume analyses of a fluid flow. Euler equation. Gradually varied flow. The Bernoulli equation. Physical and geometrical interpretation. Examples of the use of the Bernoulli equation. Viscous fluids. Extension of the use of the Bernoulli equation to streams. Energy exchanges between fluid and hydraulic machinery. Pumping stations.
Flow of viscous fluids. Moody chart. Navier-Stokes equations. Finite control volume analysis.
Recommended readings
Citrini, Noseda: Idraulica. Casa Editrice Ambrosiana.
Cengel, Cimbala: Meccanica dei Fluidi. McGraw Hill
Longo, Tanda: Esercizi di Idraulica e Meccanica dei Fluidi. Springer
Alfonsi, Orsi: Problemi di idraulica e meccanica dei fluidi. Casa Ed. Ambrosiana.
Marchi, Rubatta: Meccanica dei fluidi. Utet.
Teaching methods
Written and oral exam.
