基于数值模拟的悬浮式物料输送系统气孔设计方法研究

摘要

To investigate the influences of the air-hole factors (hole diameter,distance between holes,hole group position,etc.) of an air cushion belt conveyor on its air field form,a research model was built based on theory of gas flow field characteristics.The air-hole influences were comprehensive simulated by using the computational fluid dynamics software,and the results were processed and analyzed by using the numerical method.Thus the ways of the air-hole factors' impacting on the cushion field were revealed.According to simulated data,the comparative experiments are carried out.The simulation results are well verified by the experimental data.The air-hole design method for air cushion belt conveyors was put forward based on the theory of air field.The optimal air-hole design parameters were given.The design methodology for air cushion belt conveyors was improved.%为了研究悬浮式物料输送系统气孔因素(气孔直径、气孔间距、孔组位置等)对系统气垫场形态的影响,提出了基于气体流场特性理论的研究模型.应用计算流体力学软件分析了气孔因素对气垫场形态的影响方式,对所得结果利用数值方法进行了处理分析,得出了气孔因素对气垫场的影响方式.结合模拟数据,开展了相应的对比实验,对数值仿真分析结果进行了验证.提出了基于气垫场理论的悬浮式物料输送系统气孔设计方法,给出了气孔直径、气孔间距和孔组位置的最佳设计参数,完善了悬浮式物料输送系统的设计方法.