REGIME RECOGNITION OF TWO-PHASE PIPE FLOW BASED ON D-S EVIDENGCE THEORY

摘要

Flow regime recognition plays a fundamental role in two-phase flow measurement. Based on the characters information provided by dual-plane electrical resistance tomography (ERT) system, a method of flow regime recognition in horizontal pipe based on D-S evidence theory is brought forward. A particular way to acquire the basic probability assignment function in D-S evidence theory is introduced. Every single plane of the dual-plane ERT system has been regarded as an independent information resource. Through the fusion of features from both of the planes, less features are needed to be extracted, and better flow regime identifying result is achieved.