Strouhal number

Target entity: Strouhal number
Context triple: [Kármán vortex street, describedBy, Strouhal number]

• A. Stokes number
  The Stokes number is a dimensionless quantity in fluid dynamics that characterizes the behavior of particles suspended in a flow by comparing their response time to a characteristic timescale of the fluid.
• B. Reynolds number
  The Reynolds number is a dimensionless quantity in fluid mechanics that characterizes the flow regime of a fluid, indicating whether it is laminar or turbulent based on the ratio of inertial to viscous forces.
• 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. Kármán vortex street
  Kármán vortex street is a repeating pattern of swirling vortices formed when a fluid flows past a bluff body, fundamental in fluid dynamics and aerodynamics.
• E. Brunt–Väisälä frequency
  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.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Strouhal number
Target entity description: The Strouhal number is a dimensionless quantity in fluid dynamics that characterizes oscillating flow phenomena, relating vortex shedding frequency to flow velocity and a characteristic length.

• A. Stokes number
  The Stokes number is a dimensionless quantity in fluid dynamics that characterizes the behavior of particles suspended in a flow by comparing their response time to a characteristic timescale of the fluid.
• B. Reynolds number
  The Reynolds number is a dimensionless quantity in fluid mechanics that characterizes the flow regime of a fluid, indicating whether it is laminar or turbulent based on the ratio of inertial to viscous forces.
• 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. Kármán vortex street
  Kármán vortex street is a repeating pattern of swirling vortices formed when a fluid flows past a bluff body, fundamental in fluid dynamics and aerodynamics.
• E. Brunt–Väisälä frequency
  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.
• F. None of above. chosen