Chapter 2
Introduction to CFD Introductory FLUENT Training
Fluid region of pipe flow is
How will you isolate a piece of the complete physical system? Where will the computational
Do you have boundary condition information at these boundaries?Domain of Interest
as Part of a Larger
Domain of interest
isolated and meshed
for CFD simulation.
Remove unnecessary features that would
boundary conditions
and boundary conditions
Solid model of a
Headlight Assembly
Training Manual numerical diffusion when the mesh is
Training Manual
Model courtesy of ROI Engineering
–Moving mesh applications Non-conformal interface
Compressor and Scroll
The compressor and scroll are joined through a non conformal interface. This serves to connect the hex and tet meshes and also allows a change in reference frame
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Training Manual
Models Available in FLUENT 12
?Multiphase flows
–Discrete Phase Model (DPM)
–Volume of Fluid (VOF) model for immiscible fluids –Mixtures
–Eulerian-Eulerian and Eulerian-granular
–Liquid/Solid and cavitation phase change
?Moving and deforming mesh
–Moving zones
?Single and multiple reference frames (MRF)
?Mixing plane model ?Sliding mesh model
–Moving and deforming (dynamic) mesh (MDM)
?User-defined scalar transport equations
Pressure Contours in a Squirrel Cage Blower (Courtesy Ford Motor Co.)
Gas outlet
Oil outlet
Three-Phase Inlet
Water outlet Contours of Oil Volume Fraction in a Three-Phase Separator
system from Analysis Systems