Brunt–Väisälä frequency

Target entity: Brunt–Väisälä frequency
Context triple: [Ledoux criterion, relatesTo, Brunt–Väisälä frequency]

• A. Rossby number
  The Rossby number is a dimensionless quantity in fluid dynamics and meteorology that compares inertial to Coriolis forces, indicating the importance of Earth's rotation in large-scale atmospheric and oceanic flows.
• B. Kelvin–Helmholtz instability
  Kelvin–Helmholtz instability is a fluid dynamical phenomenon in which velocity shear between layers of fluid (or plasma) with different densities leads to characteristic wave-like billows and turbulent mixing at their interface.
• C. Froude number
  The Froude number is a dimensionless quantity in fluid dynamics that compares inertial forces to gravitational forces, commonly used to characterize flow regimes in open channels and around ships.
• D. Saffman
  Saffman is a surname most notably associated with Philip G. Saffman, a prominent British-American applied mathematician and fluid dynamicist.
• E. Chandrasekhar number
  The Chandrasekhar number is a dimensionless quantity in magnetohydrodynamics that measures the relative importance of magnetic forces compared to viscous forces in a conducting fluid.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Brunt–Väisälä frequency
Target entity description: The Brunt–Väisälä frequency is a measure of the stability of a stratified fluid to vertical displacements, representing the natural oscillation frequency of buoyancy-driven gravity waves in atmospheres, oceans, and stellar interiors.

• A. Rossby number
  The Rossby number is a dimensionless quantity in fluid dynamics and meteorology that compares inertial to Coriolis forces, indicating the importance of Earth's rotation in large-scale atmospheric and oceanic flows.
• B. Kelvin–Helmholtz instability
  Kelvin–Helmholtz instability is a fluid dynamical phenomenon in which velocity shear between layers of fluid (or plasma) with different densities leads to characteristic wave-like billows and turbulent mixing at their interface.
• C. Froude number
  The Froude number is a dimensionless quantity in fluid dynamics that compares inertial forces to gravitational forces, commonly used to characterize flow regimes in open channels and around ships.
• D. Saffman
  Saffman is a surname most notably associated with Philip G. Saffman, a prominent British-American applied mathematician and fluid dynamicist.
• E. Chandrasekhar number
  The Chandrasekhar number is a dimensionless quantity in magnetohydrodynamics that measures the relative importance of magnetic forces compared to viscous forces in a conducting fluid.
• F. None of above. chosen