schlieren
1
9.9
A technique that makes changes in air or liquid density visible using light
- noun
- /ˈʃlɪrən/
- Specialized
:
schlieren
- We're able to see this dog breath using Schlieren imaging.
- schlieren test
Examples
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Using schlieren imaging, they captured the effects of heat on the airflow above the hot surface.
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With the schlieren, we assumed that there was no ray displacement.
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So Schlieren is good for visualizing density gradients, right?
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The team used a schlieren technique to visualize the airflow around the model airplane during the experiment.
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In his research on fluid dynamics, the scientist applied schlieren methods to see temperature variations in the air.
Surface Forms
schlieren singular
schlierens plural
Etymology
Schlieren comes from the German Schliere, which means 'streak' or 'smear'. The optical technique is named for the streak-like patterns of light it shows in air or fluid, so schlieren imaging is a way to make invisible changes visible.