增材制造螺旋圆管航空煤油热氧化结焦特性的试验研究  

Experimental study on thermal oxidation coking characteristics of aviation kerosene in additively manufactured helical tubes

作　　者：张霖琪 蒋杰 阮灿 吕兴才[1] ZHANG Linqi;JIANG Jie;RUAN Can;Lü Xingcai(School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学机械与动力工程学院,上海200240

出　　处：《航空动力学报》2022年第7期1403-1412,共10页Journal of Aerospace Power

基　　金：上海市优秀学术带头人计划资助项目(19XD1401800);国家自然科学基金重大计划重点项目(91641202)。

摘　　要：为得到环境温度、入口雷诺数和磨粒流处理工艺对RP-3航空煤油氧化结焦特性的影响,针对增材制造(3D打印)螺旋圆管,采用了恒定环境温度的试验方法,开展了RP-3航空煤油热氧化结焦试验研究。试验结果表明:当入口雷诺数和试验时间保持恒定时,无论燃油处于静止还是流动状态,燃油结焦速率和总结焦量都随着环境温度的增加而增大;当试验件壁温和试验时间保持不变时,燃油处于流动状态下,燃油结焦速率和总结焦量随着入口雷诺数的增大呈现先增加后减少的变化趋势。采用磨粒流处理后,燃油在试验件内的结焦速率大于基准工况,总结焦量是基准工况下的1.17倍。对试验件内表面进行磨粒流处理不利于抑制结焦沉积。For the purpose of obtaining the influence of ambient temperature,inlet Reynolds number and abrasive flow treatment on the coking characteristics of RP-3 aviation kerosene,the RP-3 aviation kerosene thermal oxidation coking tests were carried out in additively manufactured(3D printed)helical tubes through the testing way of constant ambient temperature.The test results showed that when inlet Reynolds number and test time remained constant,the deposition rate and the total coking amount of the fuel increased with the increase of ambient temperature,regardless of whether the fuel was in a static or flowing state;when the fuel was in a flowing state,as inlet Reynolds number increased,the deposition rate increased first and then decreased with constant wall temperature and test time.After abrasive flow treatment,the deposition rate of the fuel in the test tube was greater than that of the fuel under baseline working condition,and the total coking amount of the fuel was 1.17 times the total coking amount of the fuel under baseline working condition.The abrasive flow treatment on the inner surface of the test tube was not conducive to the inhibition of coking deposition.

关 键 词：增材制造 RP-3航空煤油 结焦特性 环境温度 入口雷诺数 磨粒流处理 

分 类 号：V312[航空宇航科学与技术—航空宇航推进理论与工程]