This paper deals with the structural analysis problem of dynamic lumped process high-index DAE models. We consider two methods for index reduction of such models by differentiation: Pryce's method and the symbolic differential elimination algorithm rifsimp. Discussion and comparison of these methods are given via a class of fundamental process simulation examples. In particular, the efficiency of the Pryce method is illustrated as a function of the number of tanks in process design.
Cite
@article{arxiv.1206.6177,
title = {Structural analysis of high-index DAE for process simulation},
author = {Xiaolin Qin and Wenyuan Wu and Yong Feng and Greg Reid},
journal= {arXiv preprint arXiv:1206.6177},
year = {2012}
}