fluent12-lecture02-intro-to-cfd

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