The accurate parameter prediction of a flow field is of practical significance to promote the development of hypersonic flight. Velocity field prediction using deep learning is a promising method to provide an accurate velocity field in a scramjet isolator. A new approach for the velocity field prediction in a scramjet isolator is developed in this study. A data-driven model is proposed for the prediction of the velocity field in a scramjet isolator by convolutional neural networks (CNNs) using measurements of the pressure on the isolator. Numerical simulations of flow in a three-dimensional scramjet isolator at various Mach numbers and backpressures are carried out to establish the dataset capturing the flow mechanism over various operating conditions. A CNN architecture composed of multiple reconstruction modules and feature extraction modules is designed. The CNN is trained using the computational fluid dynamics dataset to establish the mapping relationship between the wall pressure on the isolator and the velocity field in the isolator. The trained model is then tested over various Mach numbers and backpressures. The data-driven model successfully learns the relationship between the velocity field and pressure experienced on the wall of the isolator, i.e., the trained CNN model successfully reconstructed the velocity field based on the wall pressure on the isolator with high accuracy.
机构:
China Aerodynam Res & Dev Ctr, Aerosp Technol Inst, Mianyang 621000, Peoples R China
Southwest Univ Sci & Technol, Mianyang 621000, Peoples R China
China Aerodynam Res & Dev Ctr, Sci & Technol Scramjet Lab, Mianyang 621000, Peoples R ChinaChina Aerodynam Res & Dev Ctr, Aerosp Technol Inst, Mianyang 621000, Peoples R China
Tian, Ye
Zhao, Yitong
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China Aerodynam Res & Dev Ctr, Aerosp Technol Inst, Mianyang 621000, Peoples R China
China Aerodynam Res & Dev Ctr, Sci & Technol Scramjet Lab, Mianyang 621000, Peoples R ChinaChina Aerodynam Res & Dev Ctr, Aerosp Technol Inst, Mianyang 621000, Peoples R China
Zhao, Yitong
Deng, Xue
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China Aerodynam Res & Dev Ctr, Aerosp Technol Inst, Mianyang 621000, Peoples R China
Southwest Univ Sci & Technol, Mianyang 621000, Peoples R China
China Aerodynam Res & Dev Ctr, Sci & Technol Scramjet Lab, Mianyang 621000, Peoples R ChinaChina Aerodynam Res & Dev Ctr, Aerosp Technol Inst, Mianyang 621000, Peoples R China
Deng, Xue
Yang, Maotao
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China Aerodynam Res & Dev Ctr, Aerosp Technol Inst, Mianyang 621000, Peoples R China
Southwest Univ Sci & Technol, Mianyang 621000, Peoples R China
China Aerodynam Res & Dev Ctr, Sci & Technol Scramjet Lab, Mianyang 621000, Peoples R ChinaChina Aerodynam Res & Dev Ctr, Aerosp Technol Inst, Mianyang 621000, Peoples R China
Yang, Maotao
Chen, Erda
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机构:
China Aerodynam Res & Dev Ctr, Aerosp Technol Inst, Mianyang 621000, Peoples R China
Southwest Univ Sci & Technol, Mianyang 621000, Peoples R China
China Aerodynam Res & Dev Ctr, Sci & Technol Scramjet Lab, Mianyang 621000, Peoples R ChinaChina Aerodynam Res & Dev Ctr, Aerosp Technol Inst, Mianyang 621000, Peoples R China
Chen, Erda
Xu, Mengqi
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China Aerodynam Res & Dev Ctr, Aerosp Technol Inst, Mianyang 621000, Peoples R China
Southwest Univ Sci & Technol, Mianyang 621000, Peoples R China
China Aerodynam Res & Dev Ctr, Sci & Technol Scramjet Lab, Mianyang 621000, Peoples R ChinaChina Aerodynam Res & Dev Ctr, Aerosp Technol Inst, Mianyang 621000, Peoples R China
Xu, Mengqi
Ren, Hu
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China Aerodynam Res & Dev Ctr, Aerosp Technol Inst, Mianyang 621000, Peoples R China
Southwest Univ Sci & Technol, Mianyang 621000, Peoples R China
China Aerodynam Res & Dev Ctr, Sci & Technol Scramjet Lab, Mianyang 621000, Peoples R ChinaChina Aerodynam Res & Dev Ctr, Aerosp Technol Inst, Mianyang 621000, Peoples R China
机构:
Southwest Univ Sci & Technol, Mianyang 621000, Peoples R ChinaSouthwest Univ Sci & Technol, Mianyang 621000, Peoples R China
Huang, Shicai
Tian, Ye
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Southwest Univ Sci & Technol, Mianyang 621000, Peoples R China
China Aerodynam Res & Dev Ctr, Key Lab Cross Domain Flight Interdisciplinary Tech, Mianyang 621000, Peoples R ChinaSouthwest Univ Sci & Technol, Mianyang 621000, Peoples R China
Tian, Ye
Deng, Xue
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机构:
Southwest Univ Sci & Technol, Mianyang 621000, Peoples R China
China Aerodynam Res & Dev Ctr, Key Lab Cross Domain Flight Interdisciplinary Tech, Mianyang 621000, Peoples R ChinaSouthwest Univ Sci & Technol, Mianyang 621000, Peoples R China
Deng, Xue
Yang, Maotao
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机构:
Southwest Univ Sci & Technol, Mianyang 621000, Peoples R China
China Aerodynam Res & Dev Ctr, Key Lab Cross Domain Flight Interdisciplinary Tech, Mianyang 621000, Peoples R ChinaSouthwest Univ Sci & Technol, Mianyang 621000, Peoples R China
Yang, Maotao
Chen, Erda
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机构:
Southwest Univ Sci & Technol, Mianyang 621000, Peoples R China
China Aerodynam Res & Dev Ctr, Key Lab Cross Domain Flight Interdisciplinary Tech, Mianyang 621000, Peoples R ChinaSouthwest Univ Sci & Technol, Mianyang 621000, Peoples R China
Chen, Erda
Zhang, Hua
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Southwest Univ Sci & Technol, Mianyang 621000, Peoples R ChinaSouthwest Univ Sci & Technol, Mianyang 621000, Peoples R China
机构:
Duke Univ, Nicholas Sch Environm, Div Earth & Ocean Sci, Durham, NC 27708 USADuke Univ, Nicholas Sch Environm, Div Earth & Ocean Sci, Durham, NC 27708 USA
Goldstein, Evan B.
Coco, Giovanni
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Univ Cantabria, Environm Hydraul Inst, E-39005 Santander, SpainDuke Univ, Nicholas Sch Environm, Div Earth & Ocean Sci, Durham, NC 27708 USA