The stress term \(\rho\overline{u_i^{‘}u_j^{‘}}\)is called as ____________(a) Filter Reynolds stress(b) LES Reynolds stress(c) Reynolds stress(d) Sub-Reynolds stressI have been asked this question in an internship interview.Origin of the question is Turbulence Modelling topic in chapter Turbulence Modelling of Computational Fluid Dynamics

The stress term \(\rho\overline{u_i^{‘}u_j^{‘}}\)is called as ____

1.	The stress term \(\rho\overline{u_i^{‘}u_j^{‘}}\)is called as ____________(a) Filter Reynolds stress(b) LES Reynolds stress(c) Reynolds stress(d) Sub-Reynolds stressI have been asked this question in an internship interview.Origin of the question is Turbulence Modelling topic in chapter Turbulence Modelling of Computational Fluid Dynamics
Answer» CORRECT answer is (b) LES REYNOLDS stress The BEST explanation: As the term resembles the Reynolds stress term, it is CALLED the LES Reynolds stress term. This is modelled using Sub-Grid-Scale models, a special type of turbulence model used for these stresses.

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