Portale di Ateneo - En.Unibs.it

Fluid properties
Fluids as continuos systems. Fundamental property of fluids and units. Density and specific weight, viscosity, surface tension. Compressibility. Henry’s law. Newtonian and non-Newtonian fluids. Flow regimes. Dimensional analysis.
Fluid kinematics
Eulerian and Lagrangian description of fluid motion. Material derivative. The Reynolds transport theorem. Velocity and acceleration. Vorticity. Potential flows. Continuity equation.
Hydrostatics
Stress distribution in steady, uniform flow. The Cauchy theorem. Differential and global expression of the fundamental equation of statics of fluids. Hydrostatic forces on submerged surfaces. Relative equilibrium. Buoyancy. Statics of compressible fluids.
Frictionless flows
Integral and differential equations for the conservation of momentum. Constitutive relationships. Euler's equations. The Bernoulli theorem. Scope and significance of Bernoulli theorem. Extensions of Bernoulli theorem. Power considerations in fluid flows.
Fluid Dynamics
Constitutive relationships for newtonian fluids. The Navier-Stokes equations. Reduced Navier Stokes equations. Nondimensional form of Navier-Stokes equations. Analysis of motion between parallel and convergent indefinite planes. Integral equations for the conservation of momentum. Hydraulic machines.
Steady laminar and turbulent flow in pipes
Laminar flow. Turbulent flow. Steady incompressible inner flow. Head losses in uniform flow in conduits. Energy and piezometric lines. Localized head losses. Analysis of pipe systems.
Unsteady flow in closed conduits
Analysis of unsteady flow, under elastic and anelastic hypothesis. Fundamental waterhammer equations. Waterhammer analysis for gate operation. Surge tanks.
Open-channel flow
General introduction to gradually varied flow in open channel. Uniform motion. Chezy's equation. Specific energy for a stream. Critical conditions. Hydraulic jump. Differential equation of gradually varied flow in channels. Classification of surface profiles. Rapidly varied flow. Analysis of applicative cases. Unsteady open channel flow.