This might be a good design tool if coupled with the MAPP pulse generator. I think that you could make test parts out of plexiglas, visualize flows and refine the part. By making subtractive images (i.e. subtract a Schlieren image of a part without flow form a part with flow), you can eliminate the refractive effects of the structure being tested.
Here's a link to Dr. Gary Settles page at PSU -- he seems to be the most cited authority on the topic.
Schlieren photography
Moderator: Mike Everman
Re: Schlieren photography
Here's a simple Schlieren image of the plume from a candle that I made.
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- Schlieren image of candle plume
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Re: Schlieren photography
An another, similar image
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- Another Schlieren image of a candle thermal plume
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