Non-classical kinematic shocks in suspensions of particles in fluids

The properties of weakly nonlinear kinematic waves in suspensions are inves tigated under the assumption that the particle concentration deviates only slightly from the value at the inflexion point of the drift flux curve. Spe cial emphasis is placed on the conditions for the existence of an internal dissipative-dispersive shock structure. The resulting shock admissibility c riteria are found to be significantly different from those following from s tandard theories of kinematic waves. Most interesting, the analysis shows t hat non-classical shocks which emanate rather than absorb characteristics m ay be admissible under certain conditions.