Disturbance propagation in two-dimensional boundary layers over a movable surface in the strong interaction regime

The dependence of the eigenvalues characterizing the disturbance propagation in hypersonic boundary layers on the temperature factor and the surface motion velocity is investigated. The eigenvalues are shown to decrease with an increase in the wall enthalpy. The results of the study are important for formulating well-posed problems for the time-dependent two-dimensional boundary layer equations and for developing adequate computational models.