When this phenomenon is present in a boundary layer, the Prandtl number relating heat flux and momentum flux is assumed to be close to 1, a result following from the Reynolds analogy.
This phenomenon is resolved without the help of a theoretical model in costly DNS methods, which numerically solve for the rank-2 tensor appearing in the RANS equations. Werner Heisenberg's doctoral thesis concerned the appearance of this phenomenon in systems described by the Orr–Sommerfeld equation. When this phenomenon is present in a boundary layer, the Prandtl number relating heat flux and momentum flux is assumed to be close to 1, a result following from the Reynolds analogy. Below the Kolmogorov microscale, kinetic energy associated with this regime is dissipated into heat by viscous forces. The dominance of inertial forces is responsible for the eddies and vortices that appear in this regime. For 10 points, a high Reynolds number indicates the presence of what chaotic flow regime contrasted with laminar flow?
This phenomenon is resolved without the help of a theoretical model in costly DNS methods, which numerically solve for the rank-2 tensor appearing in the RANS equations.
turbulent flow [or turbulence] &lt;Physics&gt;