Kolmogorov Energy Spectrum MCQ

Test your knowledge with important Kolmogorov Energy Spectrum MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Kolmogorov Energy Spectrum MCQs on Bissoy. Bissoy App

• If κ is the wavenumber and ε is the rate of dissipation of turbulent energy, which of these is proportional to the spectral energy of the inertial sub-range of turbulence?
  ক

  κ-5/3ε-2/3

  খ

  κ5/3ε-2/3

  গ

  κ5/3ε2/3

  ঘ

  κ-5/3ε2/3
• _____________ are called the inertial sub-range of turbulence.
  ক

  Kolmogorov micro-scale

  খ

  Small scale eddies

  গ

  Intermediate scale eddies

  ঘ

  Large scale eddies
• ____________ is associated with high wavenumbers.
  ক

  Conduction

  খ

  Dissipation

  গ

  Kinetic energy

  ঘ

  Potential energy
• The size of the eddies and the wavenumber are __________
  ক

  inversely proportional

  খ

  directly proportional

  গ

  not related to each other

  ঘ

  related but it varies according to the energy
• If ν is the kinematic viscosity and ε is the rate of dissipation of turbulent energy, to which of these terms is the spectral energy of Kolmogorov micro-scale eddies proportional to?
  ক

  ν5/3 ε1/3

  খ

  ν3/2 ε1/2

  গ

  ν1/2 ε3/2

  ঘ

  ν5/4 ε1/4
• What is the range of length and frequency of the Kolmogorov micro-scale eddies respectively?
  ক

  0.1 to 1 mm, around 1 kHz

  খ

  1-10 mm, around 10 kHz

  গ

  0.01 to 0.1 mm, around 10 kHz

  ঘ

  around 10 mm, 0.1 to 0.01 kHz
• Spectral energy is equal to ___________
  ক

  Kinetic energy per unit mass per unit wavenumber

  খ

  Rate of dissipation of turbulent energy per unit mass per unit wavenumber

  গ

  Rate of dissipation of turbulent energy per unit wavenumber

  ঘ

  Kinetic energy per unit wavenumber
• Kolmogorov micro-scales can be expressed in terms of ___________
  ক

  Rate of dissipation of turbulent energy and fluid viscosity

  খ

  Turbulent energy and fluid velocity

  গ

  Fluid velocity and viscosity

  ঘ

  Turbulent energy and fluid viscosity