CAJ | 학술논문

针对气力式排种器窝眼及吸孔内部的气流场难以进行精确计算和分析的问题，论文结合生产实际确定了排种器窝眼滚筒的结构参数和工作转速，并应用Pro/E软件分别对排种器的窝眼滚筒、窝眼及吸孔内的气流场进行三维建模。利用CFD软件对3种不同结构参数的窝眼及吸孔内的气流场进行仿真模拟，其结果表明：半球型窝眼的吸种性能理论上优于锥孔型和直孔型；吸孔直径越大，吸种能力越强，吸种效果越好。此方法适于复杂气流场的精确计算和仿真。
침대기력식배충기와안급흡공내부적기류장난이진행정학계산화분석적문제，논문결합생산실제학정료배충기와안곤통적결구삼수화공작전속，병응용Pro/E연건분별대배충기적와안곤통、와안급흡공내적기류장진행삼유건모。이용CFD연건대3충불동결구삼수적와안급흡공내적기류장진행방진모의，기결과표명：반구형와안적흡충성능이론상우우추공형화직공형；흡공직경월대，흡충능력월강，흡충효과월호。차방법괄우복잡기류장적정학계산화방진。
The sockets and sucking nozzles inside air field of pneumatic metering device are difficult to accurately calculate and analyze. Combined with the production practice, the paper determines the structure parameters and working speed of the socket cylinder-seeder, and uses Pro/E software to build 3D model of socket cylinder-seeder, sockets and sucking nozzles inside air field. CFD software is also used to simulate the inside air field of sucking nozzles and sockets which have three different structure parameters. The simulation shows that the hemispherical socket is better than conical socket and straight socket in theory; the bigger sucking nozzle diameter, the stronger sucking ability, and the better sucking effect. The method is suitable for calculating and simulating complex air field accurately.