Volume 28 Issue 3
Mar.  2013
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FU Yan-chen, DENG Hong-wu, LV Pin, XU Guo-qiang, RAN Zhen-hua. Flow resistance characteristics of supercritical aviation kerosene in helix tube[J]. Journal of Aerospace Power, 2013, 28(3): 688-694.
Citation: FU Yan-chen, DENG Hong-wu, LV Pin, XU Guo-qiang, RAN Zhen-hua. Flow resistance characteristics of supercritical aviation kerosene in helix tube[J]. Journal of Aerospace Power, 2013, 28(3): 688-694.

Flow resistance characteristics of supercritical aviation kerosene in helix tube

  • Received Date: 2012-03-12
  • Publish Date: 2013-03-28
  • Based on the experimental results,the effects of pressure,mass flow rate and style of helix tubes on the flow resistance characteristics were analyzed,and the flowing characteristics of aviation kerosene at supercritical pressure flowing through a helix tube were investigated .The results show that:the variation curve of local resistance coefficient was divided into 3 parts by critical Reynolds number and pseudo-critical temperature.Below the pseudo-critical temperature and Reynolds number,the local resistance coefficient was related to Regnolds number and D/din;below the pseudo-critical temperature and above the critical Reynolds number,it was just related to D/din;above the pseudo-critical temperature,it was not only related to Regnolds number and D/din,but also to huge variation of density and viscosity.Furthermore,a relational formula was proposed to predict the coefficient of local resistance with pressure,temperature and ratio of screw diameter versus inlet diameter when hydrocarbon fuel flowed through the helix tube at supercritical pressure.

     

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