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Date of Publication:2022-10-10

Journal:石油化工高等学校学报

Affiliation of Author(s):能源与动力学院

Issue:1

Page Number:68-72

ISSN No.:1006-396X

Abstract:The VOF (volume of fluid) method was employed to predict the characteristic of gas-liquid two-phase flow in desalination swirl nozzle. The numerical result was compared with the experimental data and they agree with each other very well. Analyse nozzle with different nozzle diffusion angles and export diameters and we can draw conclusions that the larger diffusion angle is, the greater liquid cone angle appears and it's not the bigger the better about diffusion angle. There is an optimal value in actual application. Nozzle diffusion angle will affect the velocity of inspiratory airflow by air cone. Air cone diameter decreases with nozzle diameter decreases, and there are two skips in velocity curves. One is in just entering the nozzle position (z=0.05 m), another is between nozzle export contraction and export expansion (0.02~0.04 m). Liquid closed to the exit of nozzle accelerates more rapidly with the nozzle diameter decreases and radial velocity on the outlet section becomes larger.

Note:新增回溯数据