Volume 34 Issue 5
May  2019
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Prediction method of lean blow-out limit based on a hybrid semi-empirical model[J]. Journal of Aerospace Power, 2019, 34(5): 1111-1118. doi: 10.13224/j.cnki.jasp.2019.05.017
Citation: Prediction method of lean blow-out limit based on a hybrid semi-empirical model[J]. Journal of Aerospace Power, 2019, 34(5): 1111-1118. doi: 10.13224/j.cnki.jasp.2019.05.017

Prediction method of lean blow-out limit based on a hybrid semi-empirical model

doi: 10.13224/j.cnki.jasp.2019.05.017
  • Received Date: 2018-09-04
  • Publish Date: 2019-05-28
  • A new method for predicting the lean blow-out performance of the combustor was proposed by combining the FV model with the simulation of reacting flows. The data of lean blow-out experiment of 5 combustors (two of which are through-flow combustors and the rest are reverse-flow combustors) showed that, when the value of model constant K was 1.35 to through-flow combustors, and 0.55 to reverse-flow combustors, the maximum uncertainties of the prediction method were less than ±20%. And compared with the Lefebvre model, the method proposed is much more applicable and precise for combustors of various structures.

     

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