The Thermo-Aerodynamical Analysis of Combustion Gas Flow : 2nd Report, One Dimensional Theory of Annular, Combustion Chamber

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  • 燃焼気流の温度, 圧力および速度の変化 : 第2報, 複室燃焼室に対する一次元理論
  • ネンショウ キリュウ ノ オンド , アツリョク オヨビ ソクド ノ ヘンカ 2

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Abstract

Continued from the first report, in which the combustion gas flow throush a single chamber was analyzed, this paper presents the theory of gas flow through a typical annular combustion chamber of gas turbine or jet engine by using the thermo-aerodynamical analysis. By one numerical calculation, it was quantitatively shown that : (1) the cooling air which flows the outer space of annular combustion chamber enters naturally into the inner space throush the mixing holes by the pressure difference between outside and inside and (2) it prevents the increase of temperature of combustion gas and it promotes the increase of gas velocity, while it makes the large pressure drop by mixing in addition to that by friction and expansion.

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