论文部分内容阅读
目的评估某型静态水气分离器的分离效率。方法采用计算流体力学欧拉-拉格朗日方法对静态水气分离器进行了数值模拟,建立水滴均匀和非均匀粒径的分离效率统计模型,考查水滴直径、气流速度分布、重力等多个因素对分离效率的影响。结果分离效率的计算值与试验值平均误差小于15%;给定入口气流速度分布,分离效率随着粒径的增大而提高;给定径向和切向速度,分离效率随轴向速度变化显著;考虑重力影响时的分离效率较高,粒径越大影响越明显。结论数值模型和方法合理,为该静态水气分离器性能改进提供了参考依据,并为其它形式的水气分离器性能分析提供了有效的数值方法。
Purpose To evaluate the separation efficiency of a static water vapor separator. Methods A static hydrometeor separator was simulated by the Eulerian-Lagrangian method (CFD) to establish a statistical model of the separation efficiency of uniform and non-uniform droplets. The effects of droplet diameter, air velocity distribution and gravity The impact of factors on the separation efficiency. Results The average error between the calculated value of the separation efficiency and the experimental value is less than 15%. Given the inlet airflow velocity distribution, the separation efficiency increases with the increase of particle size. Given the radial and tangential velocities, the separation efficiency varies with the axial velocity Significant; when considering the influence of gravity, the separation efficiency is higher, the larger the particle size, the more obvious the influence will be. Conclusions The numerical model and method are reasonable, which provide a reference for the performance improvement of the static water vapor separator, and provide an effective numerical method for the performance analysis of other types of water vapor separators.