CAJ | 학술논문

采用超声波震荡和机械搅拌的方式，制备了以SiO2为凝胶剂的凝胶汽油QNJ?1和QNJ?2，利用旋转式流变仪对QNJ?1和QNJ?2的表观粘度进行了实验研究。研究了凝胶剂含量、剪切速率以及预剪切对凝胶汽油表观粘度的影响，获得了该种类型的凝胶汽油在不同剪切速率下的表观粘度。实验表明，随着凝胶剂含量的增加，表观粘度增大，在低剪切速率条件下尤为明显；当凝胶剂含量相同时，表观粘度随剪切速率的增大而减小，且减小幅度越来越小；预剪切能够显著降低凝胶汽油的表观粘度。研究结果对于进一步了解凝胶汽油粘度对雾化的影响具有重要意义。
채용초성파진탕화궤계교반적방식，제비료이SiO2위응효제적응효기유QNJ?1화QNJ?2，이용선전식류변의대QNJ?1화QNJ?2적표관점도진행료실험연구。연구료응효제함량、전절속솔이급예전절대응효기유표관점도적영향，획득료해충류형적응효기유재불동전절속솔하적표관점도。실험표명，수착응효제함량적증가，표관점도증대，재저전절속솔조건하우위명현；당응효제함량상동시，표관점도수전절속솔적증대이감소，차감소폭도월래월소；예전절능구현저강저응효기유적표관점도。연구결과대우진일보료해응효기유점도대무화적영향구유중요의의。
The silica?based gelled gasoline,QNJ?1 and QNJ?2 were respectively prepared by means of ultrasonic vibration and mechanical stirring.The apparent viscosity of the gelled gasoline was researched experimentally by rotational rheometer with cone?and?plate configuration.The effect of gel content,shear rate and pro?shear on apparent viscosity of the gelled gasoline was analyzed in this paper. The results indicate that apparent viscosity increases with the increment of the gelling content. The phenomenon is ob?served obviously at low shear rate;the apparent viscosity when gelling content maintains decreases with shear rate increasing.The ap?parent viscosity of the gelled gasoline would be reduced by pro?shear significantly.The research results are of important significance for further investigation of effect of the gelled gasoline viscosity on the atomization mechanism.