Freestream Reynolds Number Calculator

The Reynolds number (Re) is a dimensionless quantity that represents the ratio of inertial forces to viscous forces in a fluid flow.
  • Re is the Reynolds number,
  • Ļāˆž is the density of the freestream fluid,
  • Vāˆž is the velocity of the freestream fluid relative to the object (freestream velocity),
  • c is a characteristic length of the object (e.g., chord length for an airfoil),
  • Ī¼āˆž is the dynamic viscosity of the freestream fluid.

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