Title: Fluid dynamical equations
1Fluid dynamical equations (Navier-Stokes
equations)
2Fluid dynamical equations (Navier-Stokes
equations) Dimensional reduction from QM to
Boltzmann eq. to the fluid equations Continuum
hypothesis
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d
3Mass conservation (continuity equation)
4Mass conservation (continuity equation)
5Incompressible fluid
6Conservation of linear momentum (Navier-Stokes
equations)
7stress tensor for surface forces
The stress tensor is symmetric!
commons.wikimedia.org/ wiki/FileStress_tensor.png
8(No Transcript)
9constitutive equation (relationship between
stress and strain) for a Newtonian fluid (with
the Stokes assumption)
10Conservation of linear momentum (Navier-Stokes
equations)
11Thermodynamic equation first principle of
Thermodynamics
12Till now
13Equations of state
Perfect gas (e.g., dry air)
14Perfect gas (e.g., dry air)
15Fluid dynamical eqns. for a perfect gas
16The static solution
17Adiabatic processes
18Static stability of a perfect gas (adiabatic
processes)
19Neutral stability of a perfect gas (adiabatic
processes)
20For a general, non adiabatic process
Relationship between potential temperature and
entropy
21Fluid dynamical eqns. for a perfect gas
22Fluid dynamical eqns. for a perfect gas
23The Boussinesq approximation (adiabatic process,
ideal fluid)
24The Boussinesq approximation (adiabatic process,
ideal fluid)
25The Boussinesq approximation
26The Boussinesq approximation (adiabatic process,
ideal fluid)
27The Boussinesq approximation (real fluid)
28The Boussinesq approximation (real fluid)
29The Boussinesq approximation (real fluid)
30The Boussinesq approximation (real fluid)