Week 8: Literature review - RANS derivation and analysis

AIM :- Literature review - RANS derivation and analysis

Objective :-

• Apply Reynold’s decomposition to the NS equations and come up with the expression for Reynold’s stress.
• Explain your understanding of the terms Reynold’s stress
• What is turbulent viscosity? How is it different from molecular viscosity?

  Turbulence :-

  Turbulence is an irregular motion of the air resulting from eddies and vertical currents. It may be as insignificant as a few annoying bumps or severe enough to momentarily throw an airplane out of control or to cause structural damage. Turbulence is associated with fronts, wind shear, thunderstorms, etc.