摘要
为实现安全、环保的油罐清洗方式,需要研制配有低压自激脉冲喷嘴的油罐清洗机器人。运用计算流体力学技术,结合油罐清洗的特殊作业环境和罐底油泥特性,对油罐清洗机器人的低压自激脉冲喷嘴进行了仿真设计。通过对自激脉冲射流发生机理和非定常空化模型研究,利用fluent软件对不同的结构设计进行数值仿真,对比分析出不同方案的优劣,选出油罐清洗机器人自激脉冲喷嘴腔径、腔长、上下喷嘴直径、碰撞壁锥度等各结构参数的最优范围,从而为实际设计提供了参考依据。
The oil tank cleaning robots need to be manufactured with low pressure self-excited pulsed nozzle for putting forward a safely and environmentally cleaning mode. By using computional dynamic fluid （CFD） technology, the design of low pressure self-excited pulsed nozzle of the oil tank cleaning robots was simulated for the special working circumstance and the character of oil sludge on the bottom of tank. After the discussion of self-excited pulsationjet＇ mechanism and non-steady cavitation model, numerical simulation of different structure designs was carried out using fluent, obtaining the best ranges of self- excited pulsed nozzle ＇ s structure such as cavity diameter, cavity length, upstream and downstream nozzle, and collision board angle. From the contrast and analysis of different blue- prints, the basic conclusion for the design came out.
出处
《计算机仿真》
CSCD
北大核心
2013年第1期360-363,共4页
Computer Simulation
关键词
结构设计
油罐
清洗机器人
低压自激脉冲喷嘴
Structure design
Oil tank
Cleaning robot
Low pressure self-excited pulsed nozzle
