| 屈服假塑性凝胶模拟液直圆管流变和流动特性分析 |
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| 引用本文： | 左博,张蒙正. 屈服假塑性凝胶模拟液直圆管流变和流动特性分析[J]. 火箭推进, 2009, 35(1): 45-49,58 |
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| 作者姓名： | 左博 张蒙正 |
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| 作者单位： | 西安航天动力研究所,陕西,西安,710100;西安航天动力研究所,陕西,西安,710100 |
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| 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动区和柱塞流动区,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。
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| 关 键 词： | 凝胶模拟液 屈服假塑性流体 流变特性 |
Analysis of rheological properties and flow characteristics of yield pseudoplastic gel simulation in tubes |
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| 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(1): 45-49,58 |
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| Authors: | Zuo Bo Zhang Mengzheng |
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| Affiliation: | Xi'an Aerospace Propulsion Institute;Xi'an 710100;China |
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| 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 plunger- cylinder 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 incr... |
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| Keywords: | gelled propellants yield pseudoplastic fluid the rheological properties |
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