Analysis of the Interaction of Jets and Airfoils in Two Dimensions

Abstract

A solution for the flow of a jet in the proximity of one or more airfoils is developed to approximate the aircraft wing/engine interface. The two-dimensional, inviscid, incompressible case considered is a significant simplification of the real flow that has proved useful for similar problems. The jets and airfoils are represented by appropriate flow singularities. A general numerical formulation is developed to describe the airfoil and jet system that allows an iterative scheme to be constructed for determining the location and strength of the flow singularities. Example calculations, including jet shapes and aerodynamic characteristics, are presented for various configurations.