基于单扇区燃烧室试验的热声模拟方法研究及验证

高贤智; 王雄辉; 冯晓星; 鄂亚佳; 何沛

doi:10.13224/j.cnki.jasp.20210117

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基于单扇区燃烧室试验的热声模拟方法研究及验证

燃烧、传热、传质 | 更新时间：2025-04-07

- 基于单扇区燃烧室试验的热声模拟方法研究及验证
- Research and verification of thermo⁃acoustic simulation method based on single⁃sector combustion test
- 航空动力学报 2022年37卷第2期页码：356-365
- 作者机构：
  
  中国航空发动机集团有限公司商用航空发动机有限责任公司，上海 200241
- 作者简介：
  
  高贤智（1988-），男，工程师，硕士，主要从事热声不稳定性研究。
- 基金信息：
  
  上海市科学技术委员会“浦江人才计划”(19PJ1433300)
- DOI：10.13224/j.cnki.jasp.20210117
  中图分类号：
- 稿件说明：
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高贤智, 王雄辉, 冯晓星, 等. 基于单扇区燃烧室试验的热声模拟方法研究及验证[J]. 航空动力学报, 2022,37(2):356-365.

Xianzhi GAO, Xionghui WANG, Xiaoxing FENG, et al. Research and verification of thermo⁃acoustic simulation method based on single⁃sector combustion test[J]. Journal of Aerospace Power, 2022, 37(2): 356-365.
高贤智, 王雄辉, 冯晓星, 等. 基于单扇区燃烧室试验的热声模拟方法研究及验证[J]. 航空动力学报, 2022,37(2):356-365. DOI： 10.13224/j.cnki.jasp.20210117.

Xianzhi GAO, Xionghui WANG, Xiaoxing FENG, et al. Research and verification of thermo⁃acoustic simulation method based on single⁃sector combustion test[J]. Journal of Aerospace Power, 2022, 37(2): 356-365. DOI： 10.13224/j.cnki.jasp.20210117.

摘要

利用自主开发的热声网络模型研究了不同试验工况、出口边界条件、入口测量段长度对单扇区燃烧室试验台燃烧不稳定性的影响，并与试验结果进行了对比分析。结果表明：声学网络模型准确预测了不同试验工况的失稳频率。预测失稳频率与试验失稳频率相差±10 Hz以内，误差在2%以内。前期单扇区燃烧室试验表明，当入口测量段为0.4 m时，发生燃烧振荡，当入口测量段为0.25 m时，未发生燃烧振荡。数值模拟表明只有当入口测量段长度在0.35~0.44 m之间时，才会激发自激燃烧振荡，这很好地解释了上述试验结果。

Abstract

An in⁃house developed thermo⁃acoustic network model was used to study the effects of different test conditions，outlet boundary conditions，and the length of inlet measurement section on the combustion instabilities of single sector combustion test rig，and the results were compared between simulations and tests.The results showed that the thermo⁃acoustic network model accurately predicted the unstable frequency at different test conditions.The differences between the predicted and test results were within ±10 Hz，and the errors were within 2%.The previous single⁃sector combustion chamber test showed that combustion oscillation occurred when the inlet measurement section was 0.4 m.Combustion oscillation did not happen when the inlet measurement section was 0.25 m. Numerical simulations showed that the self⁃excited combustion oscillation can be excited only when the length of the inlet measurement section was between 0.35 m and 0.44 m，which explained the above test results well.

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references

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