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Analysis of rheological properties and flow characteristics of yield pseudoplastic gel simulation in tubes(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2009年01期
Page:
45-49
Research Field:
研究与设计
Publishing date:

Info

Title:
Analysis of rheological properties and flow characteristics of yield pseudoplastic gel simulation in tubes
Author(s):
Zuo Bo; Zhang Mengzheng
Xi7an Aerospace Propulsion Institule，Xi 7nn 710100，China
Keywords:
gelled propellants; yield pseudoplastie fluid; the rheological properties
PACS:
V434
DOI:
-
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．

References:

[l]Jens von Kampen，Klaus Madlener，Helmut K Ciezki． Characteristic Flow and Spray Properties of Gelled Fuels with Regard to the Impinging Jet Injector Type[R]． AIAA2006--4573．
[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 究[J]．中国矿业大学学报，2003，32(3)：241—246．
[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．

Memo

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Last Update: 1900-01-01