Computational Fluid Dynamics Kolmogorov Energy Spectrum Online Exam Quiz
Computational Fluid Dynamics Kolmogorov Energy Spectrum GK Quiz. Question and Answers related to Computational Fluid Dynamics Kolmogorov Energy Spectrum. MCQ (Multiple Choice Questions with answers about Computational Fluid Dynamics Kolmogorov Energy Spectrum
What is the range of length and frequency of the Kolmogorov micro-scale eddies respectively?
Options
A : 0.1 to 1 mm, around 1 kHz
B : 1-10 mm, around 10 kHz
C : 0.01 to 0.1 mm, around 10 kHz
D : around 10 mm, 0.1 to 0.01 kHz
____________ is associated with high wavenumbers.
Options
A : Conduction
B : Dissipation
C : Kinetic energy
D : Potential energy
The size of the eddies and the wavenumber are __________
Options
A : inversely proportional
B : directly proportional
C : not related to each other
D : related but it varies according to the energy
Spectral energy is equal to ___________
Options
A : Kinetic energy per unit mass per unit wavenumber
B : Rate of dissipation of turbulent energy per unit mass per unit wavenumber
C : Rate of dissipation of turbulent energy per unit wavenumber
D : Kinetic energy per unit wavenumber
_____________ are called the inertial sub-range of turbulence.
Options
A : Kolmogorov micro-scale
B : Small scale eddies
C : Intermediate scale eddies
D : Large scale eddies
Kolmogorov micro-scales can be expressed in terms of ___________
Options
A : Rate of dissipation of turbulent energy and fluid viscosity
B : Turbulent energy and fluid velocity
C : Fluid velocity and viscosity
D : Turbulent energy and fluid viscosity
Kolmogorov spectral energy is a function of ____________
Options
A : Velocity
B : Wavenumber
C : Kinematic viscosity
D : Dynamic viscosity
If ? is the wavenumber and ? is the rate of dissipation of turbulent energy, which of these is proportional to the spectral energy of the inertial sub-range of turbulence?
Options
A : ?-5/3?-2/3
B : ?5/3?-2/3
C : ?5/3?2/3
D : ?-5/3?2/3
If ? is the kinematic viscosity and ? is the rate of dissipation of turbulent energy, to which of these terms is the spectral energy of Kolmogorov micro-scale eddies proportional to?
Options
A : ?5/3 ?1/3
B : ?3/2 ?1/2
C : ?1/2 ?3/2
D : ?5/4 ?1/4
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