Volume 30 Issue 11
Nov.  2015
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WANG De-peng, ZHUANG Yi, TAN Hui-jun, ZHANG Hong, DU Mo-chen, LI Guang-sheng. Design and simulation of a dual-channel variable geometryturbine based combined cycle inlet[J]. Journal of Aerospace Power, 2015, 30(11): 2695-2704. doi: 10.13224/j.cnki.jasp.2015.11.018
Citation: WANG De-peng, ZHUANG Yi, TAN Hui-jun, ZHANG Hong, DU Mo-chen, LI Guang-sheng. Design and simulation of a dual-channel variable geometryturbine based combined cycle inlet[J]. Journal of Aerospace Power, 2015, 30(11): 2695-2704. doi: 10.13224/j.cnki.jasp.2015.11.018

Design and simulation of a dual-channel variable geometryturbine based combined cycle inlet

doi: 10.13224/j.cnki.jasp.2015.11.018
  • Received Date: 2014-04-12
  • Publish Date: 2015-11-28
  • To meet the demand of turbine based combined cycle (TBCC) engine, a design concept of external parallel dual-channel variable inlet was proposed. By rotating cowls of turbine channel and ramjet channel, the inlet can regulate mass flow capture height and realize mode transition. Besides, the inlet can obtain good performance in a wide Mach range by adjusting internal contraction ratio with the Multi-linkages mechanism under the lower wall of ramjet channel. Numerical simulation method was applied to investigate the flow characteristics and the performance of the inlet. The results reveal that the variable inlet can work in a wide Mach range with good performance in the work envelope. Compared with fixed geometry inlet, the variable geometry inlet can increase total pressure recovery coefficient up to 12.5%, 30.2% and 133.3% at Mach number is 2.5,3.0 and 4.0, respectively.

     

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