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Yu.B. Aleksandrov, I.I. Vafin, B.G. Mingazov
14
Engineering Journal: Science and Innovation
# 1·2018
Investigating the formation of temperature patterns
in gas turbine engine combustion chambers
© Yu.B. Aleksandrov, I.I. Vafin, B.G. Mingazov
Kazan National Research Technical University
named after A.N. Tupolev — KAI, Kazan, 420111, Russia
The article investigates the flow pattern in the combustion liner of the combustion cham-
ber. We defined the key factors having an impact on mixing the gas flows with the
secondary air. The results of the composed analytical equations for the calculation of
mixing allowed us to predict the level of the temperature field non-uniformity in the com-
bustion chamber
under various design and operating parameters at the inlet and deter-
mining the optimum flow ratios ensuring the minimum level of the temperature field non-
uniformity at the combustion chamber output. We developed a computed 3D-model of the
combustion chamber sector on the basis of which we analyzed the temperature field al-
terations at the output depending on the ratios between the input primary and secondary
air into the combustion liner. The article compares the calculation data with the analytic
dependences and experimental research.
Keywords:
gas-turbine engine, combustion chamber, temperature field
non-uniformity ,
numerical simulation
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