Abstract

The results of an experimental study and numerical modeling of the distribution of the gas velocity and pressure in tangential swirlers are presented. The modeling is executed by the finite element method using the k–ε turbulence model in the Comsol Multiphysics program. The resistance coefficient of tangential devices at different design parameters of the swirler is experimentally determined. The effect of the number of channels, their length, and the slope angle on the resistance of the swirler is found after the integrated processing of the data. It is confirmed that the value of the resistance coefficient of a swirler increases with the increase in the width of the channel under otherwise equivalent conditions. Pressure losses associated with factors such as the inlet/outlet of the gas into/from the channel and its length are considered. It is found that the pressure losses determined by the viscous friction forces in the channel have the greatest effect on the value of the resistance coefficient. The dependence for the assessment of the value of the resistance coefficient of a tangential swirler is presented.

中文翻译：

---

具有直线通道壁的切向旋流器的阻力

摘要

介绍了切向旋流器中气体速度和压力分布的实验研究和数值模拟结果。建模是通过有限元方法使用kComsol Multiphysics 程序中的 –ε 湍流模型。通过实验确定了旋流器不同设计参数下切向装置的阻力系数。对数据进行综合处理后，发现通道数、长度和倾斜角对旋流器阻力的影响。证实在其他等效条件下，旋流器的阻力系数值随着通道宽度的增加而增加。考虑与诸如气体进入/离开通道的入口/出口及其长度等因素相关的压力损失。发现由通道中的粘性摩擦力决定的压力损失对阻力系数的值影响最大。