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Incompressible Flow over Airfoils topics include: Airfoil nomenclature and characteristics, vortex sheet, kutta condition, kelvin’s circulation theorem, symmetric and cambered airfoils, modern low speed airfoils, viscous, laminar and turbulent flows.
Incompressible flow over airfoils is important for understanding airflow around airfoils. This helps determine the best materials and shapes for wings and propellers for the speed range of the aircraft.
Incompressible flow is a flow where density is constant in both time and space. Although all real fluids are compressible, a flow is often approximated as incompressible if the effect of the density changes cause only small changes to the calculated results.
Thin airfoil theory is used to analyze incompressible, inviscid flow over airfoils. The theory's assumptions are: Airflow is incompressible Airflow is inviscid Airfoil has infinite length Airfoil has zero thickness
The theory's equation is: C= 2πα Where: CLis the coefficient of lift α is the angle of attack
The theory's assumptions eliminate the possibility of drag.
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