Volume 32 Issue 4
Apr.  2017
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Influence of inlet angle and injection water law on gas-steam ejection[J]. Journal of Aerospace Power, 2017, 32(4): 961-969. doi: 10.13224/j.cnki.jasp.2017.04.023
Citation: Influence of inlet angle and injection water law on gas-steam ejection[J]. Journal of Aerospace Power, 2017, 32(4): 961-969. doi: 10.13224/j.cnki.jasp.2017.04.023

Influence of inlet angle and injection water law on gas-steam ejection

doi: 10.13224/j.cnki.jasp.2017.04.023
  • Received Date: 2015-09-05
  • Publish Date: 2017-04-28
  • To study the influence of inlet angle and injection water law on flow field and interior ballistics, the Mixture multi-phase flow model, Renormalization group (RNG) k-ε turbulence model and dynamic mesh technology were adopted to build gas-steam ejection numeric calculation model. Comparing the calculation results with the literature data, it proved that the numerical method was effective. And on this basis, the influences of inlet angle and injection water law on gas-steam ejection power system were analyzed. The results show that when inlet angle is 60°, it can make the most use of the gas-steam medium energy and the launcher temperature is more uniform. Moreover, under the condition of the same water quantity, slow water injection can obtain short time out of tube but its acceleration is larger; on the contrary, quick water injection enables steady launching but the time out of tube is longer. The result can provide reference for gas-steam ejection power system design.

     

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