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Volume 31 Issue 01
Jan.  2005
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Journal of Beijing University of Aeronautics and Astronautics  > 2005  >  31(01): 69-73.
WANG Hong-yong, MA Li-shu, XU Pinget al. Research on Identification Method of Key Aircraft Based on Temporal Networktime network[J]. Journal of Beijing University of Aeronautics and Astronautics. doi: 10.13700/j.bh.1001-5965.2023.0259(in Chinese)
Citation: Wang Yuanguang, Xu Xu, Cai Guobiaoet al. Analysis of design calculation methods of scramjet combustion chamber[J]. Journal of Beijing University of Aeronautics and Astronautics, 2005, 31(01): 69-73. (in Chinese)
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Analysis of design calculation methods of scramjet combustion chamber

  • School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 11 Jul 2003
  • Publish Date: 31 Jan 2005
    Abstract
  • To find a proper way to calculate the performance of scramjet combustor and evaluate the present methods, one-dimensional chemical dynamics method was brought forward and tested with several cases. Calculation was carried out with three different methods: impulse analysis, one-dimensional chemical dynamics and two-dimensional chemical dynamics. Based on the comparison of aerodynamic parameters in combustion chamber obtained with the above methods, results show that one-dimensional chemical dynamics method and impulse analysis method can consider the influence of friction, the variation of tunnel cross area and the heat release, so the above two methods can be used to calculate the scramjet combustion chamber, which is always easy designed in configuration. As for impulse analysis, it is necessary to set the heat release discipline in chemical reaction related calculation, whereas it is unnecessary for one-dimensional chemical dynamics method, with the internal chemical reaction model obtaining the corresponding discipline. The two-dimensional chemical dynamics method can figure out the detailed information in the flow field, with taking up too much time. It is evident that different models have different advantages, so it is valuable to make the best use of each model in different calculation situation.

     

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