Dynamiczne i stacjonarne własności cieczy lepkosprężystych w złożonych przepływach ścinających

In the present paper a theory of superposed shearing flows is considered, and a brief review of the most important experimental results and statements is presented. Particular attention is paid to the problem of existence of relations between dynamic and steady-state properties, the problem of the effect of a steady shearing flow on dynamic characteristics of a combined flow, and the problem of relations valid for flows composed of a steady-state shear and small additional shear oscillations. The theoretical analysis for incompressible simple fluids is based on the theory of superposed flows with proportional stretch histories (cf. [2,3]) proposed by the author.