Modeling and Prediction of Pressure Loss in Dilute Pneumatic Conveying System with 90° Bend

摘要

Dilute gas-solid flow exits widely in industrial applications and nature process. It is of great value to estimate pressure loss during conveying. Because of the complex mechanism in gas-solid flow, accurate estimation of pressure loss can hardly be made. Based on the experimental condition in Tianjin University, a Computational Fluid Dynamics (CFD) model has been built, considering different states of motion during collisions between wall and particles with different properties. CFD model has been validated with experiment data and an automatic modeling system has been built. This paper has engaged in studying pressure loss in 90° bend with different curative radius.