On the non-normality and sensitivity of the linear stability equations in boundary layer flow: Bi-orthogonality, pseudospectra and mode sensitivity

Recall that the first aim of this thesis was to assess whether we can derive bi-orthogonality relations demonstrating that the adjoint LST eigenvectors are orthogonal to the direct eigenvectors, for both the compressible and incompressible LST equations; thereby resolving the non-orthogonality complication. It is to that end that we derived the...