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为验证吸气式涡轮冲压发动机(ATR)模型的精度,参考国外公开的试验数据,对现有ATR模型进行了修正.使用修正后的模型模拟了ATR节流性能和过渡态性能.计算结果和试验数据对比表明:高换算转速条件下的计算结果与试验结果相对误差在1%以内;低换算转速条件下,由于燃气发生器燃气性质和燃烧室出口燃气性质不准确,相对误差有所增加,但未超过5%.全换算转速范围内各参数变化趋势相同.对比结果表明该ATR模型可以很好地模拟ATR慢车以上工况的性能,同时证明了现有ATR模型的可靠性和合理性.
In order to verify the accuracy of the ATR model, the existing ATR model was modified with reference to the experimental data published abroad. The modified model was used to simulate the ATR throttling performance and transient state performance. The calculated results and The comparison of test data shows that the relative error between the calculated results and the test results under the condition of high conversion speed is within 1%. Under the condition of low conversion speed, the relative error increases due to the gas nature of the gas generator and the gas nature at the outlet of the combustion chamber are not accurate. But not more than 5% .The change trend of all parameters in the whole conversion speed range is the same.Comparison results show that the ATR model can well simulate the performance of the above ATR service, and also prove the reliability and rationality of the existing ATR model.