航天推进技术研究院主办
Zuo Bo,Zhang Mengzheng.Analysis of rheological properties and flow characteristics of yield pseudoplastic gel simulation in tubes[J].Journal of Rocket Propulsion,2009,35(01):45-49.
屈服假塑性凝胶模拟液 直圆管流变和流动特陛分析
- Title:
- Analysis of rheological properties and flow characteristics of yield pseudoplastic gel simulation in tubes
- 关键词:
- 凝胶模拟液:屈服假塑性流体; 流变特性
- 分类号:
- V434
- 文献标志码:
- A
- 摘要:
- 通过理论分析和试验研究.进行了某型凝胶模拟液在直圆管内的流变和流动特 性研究。研究结果表明:该凝胶模拟液具有明显的屈服应力;由于屈服应力的作用,直圆管 中心明显地分为剪切流磅区和柱塞流动区,柱塞流动区半径与屈服应力成正比,与压力梯度 成反比:当流量恒定时.沿程压降随屈服应力的增大而增大:当压力梯度保持不变时。流量 随屈服应力的增大而减小。
- Abstract:
- With theoretical analysis and experimental investigations,the rheological properties and flow characteristics of gelled propellants were analyzed in this paper.The results show that:the experimental gelled propellants have obvious yield stress.There are obvious shear flow and plungercylinder flow in the pipe because of yield stress.The radius of the plunger-cylinder is in direct pro— portion to yield stress and inverse proportion to pressure gradient.When the flux is constant,the pressure drop increases with the increase of yield stress.When the pressure drop is constant,the flux decreases with the increase of yield stress.
参考文献/References:
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Characteristic Flow and Spray Properties of Gelled Fuels
with Regard to the Impinging Jet Injector Type[R].
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[2]左博,张蒙正.凝胶推进剂直圆管中剪切速率与表观粘
性实验研究[J].火箭推进,2007,33(4):12—15.
[3]徐桂云,张永忠,李浴.润滑脂在钢管中流动的壁滑移研
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[4]杨伟东,张蒙正.凝胶推进剂模拟液直圆管流动特性初
步研究[J].火箭推进,2006,32(3):12—23.
[5]梁昌华,张大鹏,孙涛.屈服幂律性流体管流流动及传热
规律研究[J].管道技术与设备,2004(1):4-15.
相似文献/References:
[1]葛明和,何佳丽.UDMH/NTO双组元凝胶推力器的初步探索[J].火箭推进,2014,40(04):7.
GE Ming-he,HE Jia-li.Investigation of UDMH/NTO bipropellant gelled thruster[J].Journal of Rocket Propulsion,2014,40(01):7.
[2]代玉东.凝胶推进剂及其模拟剂的制备和特性表征[J].火箭推进,2004,(02):59.
备注/Memo
收稿日期:2008—07—29;修回日期:2008一lO一10。 作者简介:左博(1982一).男,硕士,研究领域为火箭发动机推力室设计。