Timeline

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In fluid mechanics, a time line is understood to be the instantaneous location of all particles that were marked at an earlier point in time. Usually, at the time of marking, the particles are arranged on a line transverse to the direction of flow.

One method for visualizing timelines is the hydrogen bubble method, in which small bubbles are generated by electrolysis on a fine wire in the water , which are moved with the flow.

Timelines show the divergence of the flow field. Together with streamlines , railway lines and stroking lines , they are part of the “Characteristic Lines” visualization concept.

Individual evidence

  1. ↑ Helmut Eckelmann: Introduction to flow measurement technology (= guidelines for applied mathematics and mechanics. Volume 74). Teubner, Stuttgart 1997, ISBN 3-519-02379-2 , chapter: Methods of visualizing flow, pp. 231–277, here p. 239, doi: 10.1007 / 978-3-663-09882-9_4 .
  2. ↑ Helmut Eckelmann: Introduction to flow measurement technology (= guidelines for applied mathematics and mechanics. Volume 74). Teubner, Stuttgart 1997, ISBN 3-519-02379-2 , chapter: Methods of visualizing flow, pp. 231-277, here pp. 265 ff., Doi: 10.1007 / 978-3-663-09882-9_4 .