负压除尘器内旋子式喷嘴流场特性分析

doi:10.11799/ce201708034

Abstract

Abstract: In order to study relation between nozzle structure and flow field characteristics,the paper establishes the physical model and the mathematical model of the velocity field inside and outside the nozzle. The numerical simulation was confirmed by Fluent-analysis software and the two-phase flow distribution of gas-liquid and pressure characteristics, speed characteristics of the nozzle were obtained.The results show that when the spiral flow reaches the mixing chamber, the water flow is mixed and collided with each other; the axial velocity of the flow presents a "M" shape distribution in the outlet section and air fills in the central area;the tangential velocity of water flow is in the form of "N" shape, and has obvious potential vorticity and vortex core.

CLC Number:

TD714+.4

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URL: http://www.coale.com.cn/EN/10.11799/ce201708034

http://www.coale.com.cn/EN/Y2017/V49/I8/120

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Study on Flow Field Characteristic of Spray Nozzle on Exhausting-Flowing Remover

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