Abstract
The linear stability of a compressible confluent wake/boundary layer is studied. The base flow model considered is the superposition of a compressible boundary layer and a Gaussian-like wake located above the boundary layer. The linear stability equations have been solved by using a global numerical method. The stability modes of interest have been identified as the boundary-layer modes, the antisymmetric wake mode, and the symmetric wake mode. The effects of wake height on the first Tollmien-Shlichting mode and the second mode associated with the boundary layer are discussed. Results for unstable modes associated with the wake are also presented
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