期刊论文

Numerical Simulation of Resistance Characteristics of Perforated Plate Based on Fluent

中文

液压与气动

1000-4858

2020

6

63-69

10.11832/j.issn.1000-4858.2020.06.010

2016NK2151:湖南省科技计划重点项目 2018NK2066:湖南省科技计划重点项目

本校为第一机构

均流孔板作为空气净化设备送风系统的气流均布元件,在增大腔体气流均匀性,提升设备净化效果方面具有明显优势。为了研究均流孔板结构及相关参数对其阻力特性的影响,基于流体力学理论,以空气为介质,在入口风速为0.5～8 m/s范围内,对开孔率为0.07～0.48、孔数为286～3185、相对厚度为0.17～0.75的均流孔板进行了阻力特性数值模拟分析。分析结果表明:开孔率对均流板的阻力特性影响显著,相对厚度次之,在高开孔率条件下入口风速对孔板阻力特性影响较小,并且开孔间距与开孔孔径对湍流强度有着重要影响。

The perforated plate as an airflow uniform distribution element of the air purification equipment,have obvious advantages in increasing the uniformity of airflow in cavity and improving the purification effect.In order to study the effect of perforated plates structure and related parameters on its resistance characteristics.Based on computational fluid dynamics,air is used as the fluid to study resistance characteristics of the perforated plates.Four parameters with the opening ratio from 0.07 to 0.48,number of holes from 286 to 3185 and the relative thickness from 0.17 to 0.75 are tested whe...