| Reconstructing shock front of unstable detonations based on multi-layer perceptron | |
Zhou, Lin1,2; Teng, Honghui1 ; Ng, Hoi Dick3; Yang PF(杨鹏飞)4,5; Jiang ZL(姜宗林)4,5
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| Corresponding Author | Yang, Pengfei([email protected]) |
| Source Publication | ACTA MECHANICA SINICA
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| 2021-08-31 | |
| Pages | 14 |
| ISSN | 0567-7718 |
| Abstract | The dynamics of frontal and transverse shocks in gaseous detonation waves is a complex phenomenon bringing many difficulties to both numerical and experimental research. Advanced laser-optical visualization of detonation structure may provide certain information of its reactive front, but the corresponding lead shock needs to be reconstructed building the complete flow field. Using the multi-layer perceptron (MLP) approach, we propose a shock front reconstruction method which can predict evolution of the lead shock wavefront from the state of the reactive front. The method is verified through the numerical results of one- and two-dimensional unstable detonations based on the reactive Euler equations with a one-step irreversible chemical reaction model. Results show that the accuracy of the proposed method depends on the activation energy of the reactive mixture, which influences prominently the cellular detonation instability and hence, the distortion of the lead shock surface. To select the input variables for training and evaluate their influence on the effectiveness of the proposed method, five groups, one with six variables, and the other with four variables, are tested and analyzed in the MLP model. The trained MLP is tested in the cases with different activation energies, demonstrates the inspiring generalization capability. This paper offers a universal framework for predicting detonation frontal evolution and provides a novel way to interpret numerical and experimental results of detonation waves. |
| Keyword | Cellular detonation Lead shock evolution Multi-layer perceptron Numerical simulations |
| DOI | 10.1007/s10409-021-01130-x |
| Indexed By | SCI ; EI ; CSCD |
| Language | 英语 |
| WOS ID | WOS:000691813300001 |
| WOS Keyword | NUMERICAL SIMULATIONS ; COMPUTED-TOMOGRAPHY ; NEURAL-NETWORK ; DYNAMICS ; FLAME ; MODEL ; HYDROGEN ; WAVE |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| Funding Project | National Natural Science Foundation of China[11822202] |
| Funding Organization | National Natural Science Foundation of China |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Yang, Pengfei |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/87394 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China; 2.Beijing Power Machinery Inst, State Key Lab Laser Prop & Applicat, Beijing 100074, Peoples R China; 3.Concordia Univ, Dept Mech Ind & Aerosp Engn, Montreal, PQ H3G 1M8, Canada; 4.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; 5.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Zhou, Lin,Teng, Honghui,Ng, Hoi Dick,et al. Reconstructing shock front of unstable detonations based on multi-layer perceptron[J]. ACTA MECHANICA SINICA,2021:14.Rp_Au:Yang, Pengfei |
| APA | Zhou, Lin,Teng, Honghui,Ng, Hoi Dick,杨鹏飞,&姜宗林.(2021).Reconstructing shock front of unstable detonations based on multi-layer perceptron.ACTA MECHANICA SINICA,14. |
| MLA | Zhou, Lin,et al."Reconstructing shock front of unstable detonations based on multi-layer perceptron".ACTA MECHANICA SINICA (2021):14. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Jp2021F419.pdf（6382KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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