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Research on Empirical Engineering Correction Algorithm Integrating Physical Laws |
DENG Chen, KONG Yinan, WANG Qing, CHEN Gong |
1. Computational Aerodynamics Institute of China Aerodynamics Research and Development Center, Mianyang 621000, Sichuan, China;
2. State Key Laboratory of Aerodynamics, Mianyang 621000, Sichuan, China |
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Abstract In order to quickly and accurately estimate the aerodynamic characteristics of the aircraft in the early stage of aircraft development, an empirical engineering correction algorithm that integrates physical laws is proposed. The important parameters of the empirical formula are corrected and fitted by a small amount of CFD component aerodynamic coefficient data, so as to improve the calculation accuracy of the engineering algorithm. Firstly, the applicability of the data is verified, and the applicability of the formula source Datcom calculation data and the CFD data is verified; then, the normal force coefficient is analyzed from the perspective of components, and a small number of CFD components are used to correct the aerodynamic coefficient data. The empirical formulas of aerodynamic coefficients of aircraft components are fitted, and the calculation equations of aerodynamic coefficients of the algorithm is confirmed by comparing the calculation results of the revised formulas with the CFD prediction set.
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Received: 06 April 2022
Published: 29 September 2022
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[2] |
WANG Mingyang (王明阳), SHI Liangren∗ (时良仁), LI Yuanlong (李元龙). Indoor Vehicle Positioning Based on Multi-Sensor Data Fusion[J]. J Shanghai Jiaotong Univ Sci, 2023, 28(1): 77-85. |
[3] |
ZHAO Huipan, LIU Huanyu. Low Signature Target Group Detection Based on Multimodal Data Learning Fusion Network[J]. Air & Space Defense, 2021, 4(3): 41-47. |
[4] |
LI Shuoming (李硕明), CHEN Lei (陈磊), CHEN Shihong (陈世鸿). An SNN Ontology Based Environment Monitoring Method for Intelligent Irrigation System[J]. Journal of Shanghai Jiao Tong University (Science), 2018, 23(4): 577-. |
[5] |
LI Jian,HE Liming,CAI Yunze. Multi-Sensor Data Fusion Algorithm with State Equality Constraints[J]. Journal of Shanghai Jiaotong University, 2014, 48(07): 893-898. |
[6] |
WANG Zhong-wei, CAO Qi-xin, LUAN Nan, ZHANG Lei. Autonomous Localization Technique of Submarine Inpipe Robot Based on Multisensor Data Fusion[J]. Journal of Shanghai Jiaotong University, 2008, 42(10): 1707-1711. |
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