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This
diagram depicts the arrangement of riblets on the inside surface
of a pipe, for a study conducted by Ohio State University chemical
engineer Konrad Koeltzsch and his colleagues from the Dresden
University of Technology in Germany. [Graphic courtesy of Ohio
State University.] |
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Using
this pipe channel, Ohio State University chemical engineer Konrad
Koeltzsch and his colleagues from the Dresden University of Technology
in Germany studied how the angle of riblets on the inside of
a pipe affect fluid flow. The experiments took place in an underground
laboratory in Germany, where temperature fluctuations and vibrations
that would interfere with the experiment could be minimized.
[Photo courtesy of Ohio State University.] |
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Ohio
State University chemical engineer Konrad Koeltzsch and his colleagues
from the Dresden University of Technology in Germany studied
how the angle of small grooves, called riblets, affect the flow
of fluids such as air or water. The researchers lined a pipe
with this grooved film, which was created by technology company
3M. Each V-shaped groove measures 150 micrometers across -- approximately
twice the width of a human hair. [Photo courtesy of Ohio State
University.] |
