# Does anyone know how to do this Aerodynamics fog in paraview?Thanks in advance.

**URL:** https://discourse.paraview.org/t/does-anyone-know-how-to-do-this-aerodynamics-fog-in-paraview-thanks-in-advance/1631
**Category:** ParaView Support
**Created:** [April 9, 2019, 3:31am UTC](https://discourse.paraview.org/t/does-anyone-know-how-to-do-this-aerodynamics-fog-in-paraview-thanks-in-advance/1631 "2019-04-09T03:31:15Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![hdz19900725](https://discourse.paraview.org/user_avatar/discourse.paraview.org/hdz19900725/32/7157_2.png) [@hdz19900725](https://discourse.paraview.org/u/hdz19900725)
#### Post date: [April 9, 2019, 3:31am UTC](https://discourse.paraview.org/t/does-anyone-know-how-to-do-this-aerodynamics-fog-in-paraview-thanks-in-advance/1631/1 "2019-04-09T03:31:15Z")

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![AERO-0](https://discourse.paraview.org/uploads/default/original/2X/b/b6d44a80dbcf2692bdfcc60f552eac170ccdde9c.jpeg)

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### Author: ![Kenneth\_Moreland](https://discourse.paraview.org/user_avatar/discourse.paraview.org/kenneth_moreland/32/15033_2.png) [@Kenneth\_Moreland](https://discourse.paraview.org/u/Kenneth_Moreland)
#### Post date: [April 9, 2019, 2:07pm UTC](https://discourse.paraview.org/t/does-anyone-know-how-to-do-this-aerodynamics-fog-in-paraview-thanks-in-advance/1631/2 "2019-04-09T14:07:42Z")

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You can get a similar effect with the `Stream Tracer` filter using a line source as the seed type. The `Stream Tracer` is documented in _The ParaView Guide_ (`Help` -\> `ParaView Guide`) in Section 5.8.3 of the current version (for ParaView 5.6).

Technically, smoke in a wind tunnel produces an effect typically called a streak line whereas the `Stream Tracer` filter technically creates stream lines. However, in a steady state field the two are the same.