Main ContribExamples/ExampleSimple2DFlow
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1 Internal Laminar Incompressible Viscous Flow
The title may sound complicated, but this is a good place to start if you are new to computational fluid dynamics (CFD). Let's break it down:
- Internal: the flow is completely bounded by solid surfaces.
- Laminar: no macroscopic mixing of adjacent fluid layers.
- Incompressible: variations in fluid density are negligible.
- Viscous: flow is friction-dominated rather than pressure-dominated
We will construct the simplest possible flow example, which is seen in every fluid mechanics textbook. The OpenFOAM case will be constructed in two dimensions. Effectively, this simulates the flow that will occur between infinitely wide parallel plates.
Download the case here. Media:Simple2DFlow.tar.gz
I intend to expand the explanation significantly here!
Here is a color map of the velocity magnitude for fully developed laminar flow.
1.1 Reference
Robert W. Fox, Alan T. McDonald, Philip J. Pritchard. Introduction to Fluid Mechanics. John Wiley and Sons, 2004.