MODEL INVESTIGATIONS 3D OF GAS-POWDER TWO PHASE FLOW IN DESCENDING BED WITH CONSIDERATION RADIAL DISTRIBUTION OF FLOW

摘要

The results of experimental investigations concerning radial distribution of powder accumulation in bed and static pressure were presented in this paper. To realize this research physical model of gas-powder two phase flow with descending bed was projected and constructed. Amounts of "dynamic" and "static" powder accumulated in bed, in dependence on gas velocity and of bed particles were investigated. In 3D model "static" powder (with its radial distribution) at the tuyere level and in the higher part of bed was measured.The influence of bed particles, powder and gas radial distribution on values of interaction forces between flow phases in investigated system was defined.