Blockage location in pipelines using animplicit nonlinear finite-difference modeloptimization

Abstract : In this paper, a new approach for punctual blockage location in pipelines is proposed.This approach is based on an implicit finite-difference modeling of pipeline dynamics includingthe effect of punctual blockage under study, and on a related optimization: using measurementsat both ends of the pipeline, together with an appropriate excitation, the parameters of theblockage are directly identified from a bank of simulators. This methodology is shown to bepretty efficient via simulation results, even in the presence of additive measurement noise.