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Aero 452
Viscous Flows and Heat
Transfer
Prof. Lee Carlson
With contributions by
Prof. Sharath S. Girimaji
Prof. William S. Saric
Prof. Paul Cizmas
Prof. Helen L. Reed

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Historical Calendar of Fluid Dynamics
Leonardo Da Vinci (1500 AD): First scientific observations of turbulence in fluid
flow. From his observations he designed the first concepts for what would
become the helicopter.
(http://en.wikipedia.org/wiki/File:Leonardo_da_Vinci_helicopter.jpg)
Euler (1707-1783) Developed first equations of fluid dynamics
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D’Alembert (1717
-1783): Discovered drag force on a body moving at constant
velocity through a fluid was nonzero, in contradiction to Euler’s equation.
http://visualwikipedia.com/en/D'Alembert's_paradox
Claude-Louis Navier (1785-1836) and George Gabriel Stokes (1819-1903): Their
separate works were combined to develop the Navier-Stokes equations which
govern viscous incompressible fluid flow.
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Osborne Reynolds (1842-1912): Most famously studied the conditions in which
the flow of fluid in pipes transitioned from laminar flow to turbulent flow. From
these experiments came the dimensionless Reynolds number for dynamic
similarity
—
the ratio of inertial forces to viscous forces.
Also decomposed turbulent flow parameters into two parts.
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Ludwig Prandtl (1875-1953): His research identified the boundary layer and
paved the way for Mixing Length Theory.
A. N. Kolmogorov (1940s): Developed the famous postulates of turbulence and
scaling laws.