结构参数和运行工况对挡水板性能的影响研究
Research on the Influence of Structural Parameters and Operating Conditions on the Performance of Water Eliminator

为了得到挡水效果好、阻力小、间距大的挡水板，采用MSC Cradle商用CFD求解器进行数值模拟，研究了不同的结构参数和运行工况对挡水板挡水效果和阻力系数的影响规律；在满足漏风比为零的条件下，突边夹角、突边半径、板倾角、板间距对分离效率无影响；随着突边夹角增大，阻力系数先减小后稍有增大；随着突边半径增大，阻力系数先减小后稍有增大；随着板间距增大，阻力系数逐渐减小，在漏风比为零时，挡水效率基本无变化，在漏风比大于零时，挡水效率逐渐减小；随着板倾角增大，阻力系数逐渐增大；随着粒径增大，阻力系数先降低后趋于平稳，分离效率逐渐增大后趋于平稳；随着风速的增大，阻力系数逐渐增大，分离效率先增大后趋于平稳。本文研究结果对于挡水板的优化设计具有重要的指导作用。
In order to obtain the water eliminator with good water eliminates effect, small resistance and large distance, the influence law of different structural parameters and operating conditions on the elim-inator effect and resistance coefficient of the water eliminator was studied by numerical simulation. Under the condition that the air leakage ratio is zero, the separation efficiency is not affected by the angle, the radius of the edge, the inclination angle of the plate and the distance between the plates. With the increase of the arc angle, the drag coefficient decreases first and then increases slightly. As the radius of the arc increases, the drag coefficient decreases first and then increases slightly. When the air leakage ratio is zero, the water eliminator efficiency basically does not change. When the air leakage ratio is greater than zero, the water eliminator efficiency decreases gradually. With the in-crease of plate inclination angle, the drag coefficient increases gradually. With the increase of parti-cle size, the drag coefficient decreases first and then tends to be stable, and the separation efficiency increases gradually and then tends to be stable. With the increase of wind speed, the drag coeffi-cient increases gradually, and the separation efficiency increases first and then tends to be stable. The research results of this paper have an important guiding role for the optimal design of the wa-ter eliminator.