Stream filament

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The stream filament is a model concept in fluid mechanics .

A stream filament is defined as the fluid within an imaginary, thin tube, the surface of which is formed by streamlines . This means that no flow can pass through the surface of a stream filament, since a flow always runs tangential to the streamlines.

The density , pressure , speed and temperature are constant over the cross section of the stream filament . However, these sizes can change along the stream filament.

In the streamline theory the overall flow of a system is viewed by the flow in a current thread.

literature

  • Jürgen Zierep: Basics of fluid mechanics. Springer, Berlin 1997, ISBN 3540616152 .