Schlieren Image Of A Man Whistling
by Gary S. Settles
Title
Schlieren Image Of A Man Whistling
Artist
Gary S. Settles
Medium
Photograph - Photograph
Description
When we whistle, we blow air through pursed lips, generating a tone that can be changed by moving the lips, which serve as a musical instrument. This color schlieren image reveals that the air expelled by whistling forms a turbulent jet that penetrates the surrounding still air. However, the sound produced in this example cannot be imaged by the schlieren method. The circular schlieren field-of-view shown here is provided by the 1-m-diameter parabolic mirror of the Penn State University Gas Dynamics Laboratory.
Uploaded
July 7th, 2014
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