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Volume 29 Issue 2
Jun 2015
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Chinese Journal of High Pressure Physics  > 2015  >  29(2): 155-160.
WANG Yu, BAI Jin-Song, WANG Xiang, TAN Hua, LI Ping. Computational Design of Graded Density Impactors for Convergent Hypervelocity Launchers[J]. Chinese Journal of High Pressure Physics, 2015, 29(2): 155-160. doi: 10.11858/gywlxb.2015.02.011
Citation: WANG Yu, BAI Jin-Song, WANG Xiang, TAN Hua, LI Ping. Computational Design of Graded Density Impactors for Convergent Hypervelocity Launchers[J]. Chinese Journal of High Pressure Physics, 2015, 29(2): 155-160. doi: 10.11858/gywlxb.2015.02.011
shu

Computational Design of Graded Density Impactors for Convergent Hypervelocity Launchers

doi: 10.11858/gywlxb.2015.02.011
  • 1.

    Institute of Fluid Physics, CAEP, Mianyang 621999, China

  • 2.

    National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621999, China

  • Received Date: 06 May 2013
  • Rev Recd Date: 12 Sep 2014
    Abstract
  • When the convergent hypervelocity launcher is applied to measure the equation of states, the second stage flyer are required to have well impact planarity and high impact velocity. Taking this into consideration, our paralleled Eulerian code HVL-MFPPM is employed to investigate the hypervelocity launcher.According to the simulation results, the structure and dimensions of the first stage flyer are optimized.Finally, the best scheme (the diameter of the first stage flyer is 20 mm, and its thickness is 1.8 mm) is obtained, which leads to the successful launch of an intact gram magnitude tantalum flyer to a velocity over 14 km/s in numerical simulation, and significant improvements in the impact velocity and planarity of the second stage flyer.

     

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