Focusing of weak shock waves in confined axisymmetric chambers
Weak shock wave focusing process in an axisymmetric chamber of elliptic or parabolic cross-section is studied. In the elliptic case, a spherical shock wave of constant strength generated at one of the focal points will reflect at the chamber wall and converge on a spherical region around the second focus of the chamber. In the parabolic case, a plane shock wave of constant intensity will after the reflection at the chamber wall transform to a spherical shock with non-homogeneous pressure distribution. Alternatively, a spherical shock of constant intensity generated at the focus of the parabolic chamber will after the reflection transform to a plane shock wave with non-homogeneous pressure distribution propagating outwards from the chamber.
scientific article; zbMATH DE number 528953