NPARC STUDY OF A 2-DIMENSIONAL TRANSONIC WALL INTERFERENCE

An application of the inviscid (Euler) version of the NPARC code to a finite thickness airfoil inside a test section with impermeable walls is described, Three different, physically meaningful, choking patterns are generated, It is shown that, in contrast to predictions from sing ular perturbation analyses, the computed wind-tunnel results are not c orrectable to equivalent freestream conditions when flow is choked.