Dissipation in turbulent flows converts ____________ energy to ____________ energy.(a) kinetic, internal(b) internal, kinetic(c) kinetic, viscous(d) viscous, kineticI have been asked this question at a job interview.This is a very interesting question from Turbulence Modelling in portion Turbulence Modelling of Computational Fluid Dynamics

Dissipation in turbulent flows converts ____________ energy to _______

1.	Dissipation in turbulent flows converts ____________ energy to ____________ energy.(a) kinetic, internal(b) internal, kinetic(c) kinetic, viscous(d) viscous, kineticI have been asked this question at a job interview.This is a very interesting question from Turbulence Modelling in portion Turbulence Modelling of Computational Fluid Dynamics
Answer» Right choice is (a) KINETIC, internal The best explanation: Viscous effects reduce the velocity GRADIENTS and hence the kinetic energy of the flow. THUS, mixing is dissipative. This lost energy is CONVERTED into THERMAL internal energy of the flow. Thus, kinetic energy is converted into internal energy.

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