Question

Which of these models solves turbulent kinetic energy and specific dissipation?

(a) K – omega model

(b) K – epsilon model

(c) RANS model

(d) RNG – LES model

I have been asked this question in homework.

My enquiry is from Turbulence Modelling topic in section Boundary Layers, Laminar & Turbulent Boundary Layers, Navier Stokes Solutions of Aerodynamics

Answer 1

Correct option is (a) K – omega model

Easy explanation: K – omega is one of the popular turbulence model. It is a two-equation model which solves two transport equations –  turbulent kinetic energy and specific dissipation. Turbulent kinetic energy determines the energy whereas the specific dissipation determines the turbulence scale.