The Reynolds number (Re) based on a characteristic length x1 is a dimensionless quantity used to describe the nature of fluid flow past an object, such as a pipe, a cylinder, or an airfoil. It’s a fundamental parameter in fluid dynamics that helps predict whether the flow is laminar or turbulent.
- Rex1: Reynolds number based on characteristic length x1.
- x1/c: Ratio of distance to the chord length
- Rec: Reynolds number based on chord length