Volume 27 Issue 1
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Article Navigation >  Journal of Aerospace Power  > 2012  >  27(1): 63-68
RAN Zhen-hua, XU Guo-qiang, DENG Hong-wu, ZHANG Chun-ben, ZHU Kun, HUANG Wen. Characteristics of flow distribution of aviation kerosene in parallel pipes under supercritical pressure[J]. Journal of Aerospace Power, 2012, 27(1): 63-68.
Citation: RAN Zhen-hua, XU Guo-qiang, DENG Hong-wu, ZHANG Chun-ben, ZHU Kun, HUANG Wen. Characteristics of flow distribution of aviation kerosene in parallel pipes under supercritical pressure[J]. Journal of Aerospace Power, 2012, 27(1): 63-68.
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Characteristics of flow distribution of aviation kerosene in parallel pipes under supercritical pressure

  • National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics, School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 2011-03-21
  • Rev Recd Date: 2011-07-20
  • Publish Date: 2012-01-28
    Abstract
  • Flow distribution characteristics of China No.3 kerosene (RP-3) in vertical parallel U-turn tubes were experimentally investigated under supercritical pressures.Based on the experimental results,the effects of temperature,pressure and asymmetrical heat flux to the flow distribution characteristics of the RP-3 were analyzed.In the experiments,the inner and outer diameters of the test tube are 1.8mm and 2.2mm respectively;the mass flow rate is maintained at 4g/s under the pressure from 3 to 5MPa,and the heat flux changes from 60 to 240kW/m2.The test results indicate that static unsteady phenomenon will be induced when fuel temperature is close to its pseudo-critical point under the lower pressure,which leads to flow imbalance and flow redistribution between the two tubes.In addition,the mass flow in the branch tube is significantly affected by the non-uniformity of heat flux,and the system stability can be improved effectively by the increase of pressure and which will inhibit the flow distribution differences in the parallel pipes.

     

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