August 2023

The moment coefficient about the quarter-chord (often denoted as “cm,c/4”) for a cambered airfoil refers to the aerodynamic moment or torque exerted around the airfoil’s quarter-chord point. This coefficient provides valuable information about the airfoil’s pitching behavior, stability, and balance. In the context of an airfoil, the quarter-chord point is located at 25% of the […]

The moment coefficient about the leading edge for a symmetric airfoil is often denoted as “cm,le.” This coefficient represents the aerodynamic moment or torque exerted around the airfoil’s leading edge. cm,le is typically calculated or measured about a specific point on the airfoil, often the quarter-chord point (25% of the chord length from the leading

In aerodynamics, “xac” typically refers to the location of the aerodynamic center of an airfoil or wing. The aerodynamic center is a point on the airfoil or wing where changes in lift and pitching moment (related to changes in angle of attack) occur without inducing changes in drag. It is an important concept in aerodynamic

The lift coefficient (cl​) is a dimensionless aerodynamic parameter that quantifies the lift-generating efficiency of an airfoil, wing, or other aerodynamic body in a fluid flow. It is a crucial parameter in aerodynamics and is used to describe the relationship between the lift force generated by the body and the various factors that influence lift

The lift coefficient (cl​) is a dimensionless aerodynamic parameter that quantifies the lift-generating efficiency of an airfoil, wing, or other aerodynamic body in a fluid flow. It is a crucial parameter in aerodynamics and is used to describe the relationship between the lift force generated by the body and the various factors that influence lift

The lift per unit span (L′) is a measure of the lift force generated by an airfoil or wing normalized by its span (width) across the direction of the airflow. It is a fundamental aerodynamic parameter used to quantify the lift produced by the airfoil or wing for a given span length.  L′ is the

Circulation (Γ) around an airfoil refers to the net flow of fluid rotation per unit time that occurs as air flows around the airfoil in an aerodynamic field. It is a fundamental concept in fluid dynamics and aerodynamics, particularly in the context of lift generation and the behavior of wings or airfoils.  Γ is the

The moment coefficient about the trailing edge (cm,te​) is a dimensionless parameter used in aerodynamics to quantify the aerodynamic moment or torque acting on an airfoil or wing about its trailing edge. This coefficient provides a normalized measure of the rotational force that causes the airfoil to pitch or rotate around the trailing edge due