Research on time series prediction of the flow field in supersonic combustor based on deep learning

Mingming Guo; Hao Chen; Ye TianDeSong WuXue DengJialing LeHua ZhangFuyu Zhong

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Research on time series prediction of the flow field in supersonic combustor based on deep learning

机译：Research on time series prediction of the flow field in supersonic combustor based on deep learning

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摘要

The detection of supersonic combustion flow field provides valuable reference information for the efficient combustion of hypersonic vehicles. From the perspectives of scramjet operation during flight as well as experiment where the measured information is limited, flow field prediction using deep learning technology is a promising method that can provide future flow field evolution in scramjet combustors. This study proposes a convolutional neural network model of multi-temporal pressure information fusion to predict combustion flow field based on wall pressure. In addition, it analyzes the effect of various wall pressures on the flow field prediction. An experimental dataset of supersonic ground-pulse wind tunnel tests with different injection pressures is built through the combustion chamber wall under self-ignition conditions of a hydrogen-fueled scramjet. The results showed that the predicted flow field of the combustor agrees with the ground test, average correlation coefficient reached more than 90 and when the wall pressure number is 32, the average peak signal to noise ratio reaches about 23. and the main wave structure and turbulent boundary layer region are restored even if there is a shock boundary layer interaction.

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来源
《Aerospace science and technology》 |2023年第9期|108459.1-108459.11|共11页
作者
Mingming Guo; Hao Chen; Ye TianDeSong WuXue DengJialing LeHua ZhangFuyu Zhong;
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作者单位

Southwest University of Science and Technology, Mianyang 621000, China, China Aerodynamic Research and Development Center, Mianyang 621000, China;

China Aerodynamic Research and Development Center, Mianyang 621000, China;

Southwest University of Science and Technology, Mianyang 621000, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类
关键词
Supersonic combustor; Flow field prediction; Deep learning; Self-ignition;

Research on time series prediction of the flow field in supersonic combustor based on deep learning

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