Primitive Path Models

Abstract

Having discussed the range of applicability for various FENE chain models mostly listed in the upper part of Table 14.1 one may expect that we also review the FENE models in the lower part of this table. Forttunately, several reviews exist summarizing the constitutive equations following from the approximations involved in the FENE-P. and FENE-L. models, cf. [4, 35, 66] such there is no need to summarize them – and there usefulness in micro-macro applications – here. Rather, we turn to simple low dimensional models depicted in the upper part of Fig. 1.2, i.e. tube models and elongated particle models for the dexcription of complex fluids. One may ask how these levels of descriptions are related. This will be discussed in Sect. 8.10.1.