Computational Fluid Dynamics Boundary Conditions Turbulence Model Online Exam Quiz

Computational Fluid Dynamics Boundary Conditions Turbulence Model GK Quiz. Question and Answers related to Computational Fluid Dynamics Boundary Conditions Turbulence Model. MCQ (Multiple Choice Questions with answers about Computational Fluid Dynamics Boundary Conditions Turbulence Model

The range of values of the turbulent kinetic energy is ___________

Options

A : 50 to 75%

B : 11 to 20%

C : 1 to 10%

D : 0 to 1%

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Boundary conditions near the solid-walls for a k-? model depends on ___________

Options

A : Eddy viscosity

B : Reynolds number

C : ?-value

D : k-value

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Which of these is correct about the first internal node of a k-? model?

Options

A : k-equation is not solved

B : ?-equation is not solved

C : Both k and ?-equations are not solved

D : Both k and ?-equations are solved simultaneously

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In the low Reynolds number turbulence models, the first internal grid point is placed in the ___________

Options

A : log-law layer

B : buffer layer

C : inertial sub-layer

D : viscous sub-layer

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When k and ? values are not available, for inlet boundary conditions, they are ____________

Options

A : obtained from turbulence intensity

B : assumed to be zero

C : assumed to be unity

D : obtained from Reynolds number

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Which of these values vanish near the wall boundary?

Options

A : Velocity and turbulent viscosity

B : Velocity and Reynolds number

C : Velocity and k-value

D : k-value and Reynolds number

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