SWIRL FLOW ANALYSIS BASED ON ELECTRICAL CAPACITANCE TOMOGRAPHY

Abstract

This paper describes an application of dual-plane Electrical Capacitance Tomography (ECT) system for gas-solid swirl flow measuremetns. The angular component of the velocity in the pipes cross section was calculated. The angular velocity was determined based on tomographic data sets obtained from the physical model and also simulated data sets of the swirl flow phenomena. Analysis of material concentration changes in time, with the aid of sequences of 2D reconstruction images, allowed to swirling flow, angular velocity vectors to be successfully evaluated.

Keywords

• electrical capacitance tomography
• swirl flow
• flow velocity