Turbulent Flow in an Artery
Flow is laminar in the large part of this blood vessel and turbulent in the part narrowed by plaque, where velocity is high. In the transition region, the flow can oscillate chaotically between laminar and turbulent flow.
Source
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"OpenStax College, The Onset of Turbulence. February 16, 2013."
http://cnx.org/content/m42210/latest/
OpenStax CNX
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