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Which among these techniques is the first one invented for solving turbulent flows?

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Which among these techniques is the first one invented for solving turbulent flows?

(a) DNS

(b) LES

(c) RANS

(d) FANS

The question was asked at a job interview.

This key question is from Turbulence Modelling topic in section Turbulence Modelling of Computational Fluid Dynamics

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Best answer
Correct option is (a) DNS

The explanation: DNS is the first method used to solve the turbulent flow models. DNS stands for Direct Numerical Simulation. It uses the energy cascade concept developed by Kolmogorov. Its time-steps are limited by Courant number.

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