Computational Fluid Dynamics Turbulent Viscosity Online Exam Quiz
Computational Fluid Dynamics Turbulent Viscosity GK Quiz. Question and Answers related to Computational Fluid Dynamics Turbulent Viscosity. MCQ (Multiple Choice Questions with answers about Computational Fluid Dynamics Turbulent Viscosity
Which of these models solves a system for the turbulent kinematic viscosity?
Options
A : DNS
B : LES
C : Spalart-Allmaras
D : RANS
The kinematic turbulent viscosity is __________
Options
A : equal to the product of turbulent length and time scales
B : equal to the product of turbulent length and velocity scales
C : proportional to the product of turbulent length and velocity scales
D : proportional to the product of turbulent length and time scales
The dynamic turbulent viscosity is ___________
Options
A : equal to the product of turbulent length and time scales
B : proportional to the product of turbulent length and time scales
C : proportional to the product of kinematic turbulent viscosity and density of the fluid
D : equal to the product of kinematic turbulent viscosity and density of the fluid
Which of these scientists introduced turbulent viscosity?
Options
A : Kolmogorov
B : Smagorinsky
C : Prandtl
D : Boussinesq
Which of these is not a turbulent viscosity model?
Options
A : k-?
B : k-?
C : DNS
D : SST
The units of kinematic and dynamic turbulent viscosities are ___________ respectively.
Options
A : m/s2 and kg m/s
B : m2/s2 and kg/m s
C : m3/s and kg m/s
D : m2/s and kg/m s
Which of these models is made different from its parent model by turbulent viscosity?
Options
A : Realizable k-? model
B : k-? model
C : Spalart-Allmaras model
D : SST model
__________ relates turbulent viscosity and diffusivity.
Options
A : Reynolds number
B : Reynolds analogy
C : Reynolds-Averaged Navier-Stokes equations
D : Favre-Averaged Navier-Stokes equations
The value of turbulent viscosity is fairly close to that of __________
Options
A : Turbulent diffusivity
B : Newton’s viscosity
C : Kinematic viscosity
D : Dynamic viscosity
In the k-? model, the turbulent viscosity is given as ___________
Options
A : ?t?k/?
B : ?t?k2/?
C : ?t=k/?
D : ?t=k2/?
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