The Optimization of Aircraft Acceleration Response and EDR Estimation Based on Linear Turbulence Field Approximation
The estimation of aircraft vertical acceleration response to atmospheric turbulence is fundamental to acceleration-based eddy dissipation rate (EDR) estimation. The linear turbulence field approximation with the wind gradients effects is utilized to describe the turbulence effects on civil aviation...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/12/6/799 |
| _version_ | 1797529349517213696 |
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| author | Debao Wang Zhenxing Gao Hongbin Gu Xinyu Guan |
| author_facet | Debao Wang Zhenxing Gao Hongbin Gu Xinyu Guan |
| author_sort | Debao Wang |
| collection | DOAJ |
| description | The estimation of aircraft vertical acceleration response to atmospheric turbulence is fundamental to acceleration-based eddy dissipation rate (EDR) estimation. The linear turbulence field approximation with the wind gradients effects is utilized to describe the turbulence effects on civil aviation aircraft. To consider the wind gradients effects, the aircraft was modeled by a cruciform assembly in this study. A vertical acceleration estimation based on the unsteady vortex lattice method (UVLM) was proposed, in which the air-compression effects in high-subsonic flight were compensated by the Karman–Tsien rule. Results indicate that compared with the wing-tail assembly, the cruciform assembly with the wind gradients effects has better accuracy in computing acceleration response. The vertical acceleration response only induced by turbulence can be obtained for acceleration-based EDR estimation. Furthermore, with the optimized acceleration response, the estimated EDR value has got better accuracy and stability. |
| first_indexed | 2024-03-10T10:12:35Z |
| format | Article |
| id | doaj.art-46d6f2abd75e41ccb780129f178322e4 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T10:12:35Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-46d6f2abd75e41ccb780129f178322e42023-11-22T01:05:41ZengMDPI AGAtmosphere2073-44332021-06-0112679910.3390/atmos12060799The Optimization of Aircraft Acceleration Response and EDR Estimation Based on Linear Turbulence Field ApproximationDebao Wang0Zhenxing Gao1Hongbin Gu2Xinyu Guan3College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, ChinaCollege of General Aviation and Flight, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, ChinaCollege of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, ChinaCollege of General Aviation and Flight, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, ChinaThe estimation of aircraft vertical acceleration response to atmospheric turbulence is fundamental to acceleration-based eddy dissipation rate (EDR) estimation. The linear turbulence field approximation with the wind gradients effects is utilized to describe the turbulence effects on civil aviation aircraft. To consider the wind gradients effects, the aircraft was modeled by a cruciform assembly in this study. A vertical acceleration estimation based on the unsteady vortex lattice method (UVLM) was proposed, in which the air-compression effects in high-subsonic flight were compensated by the Karman–Tsien rule. Results indicate that compared with the wing-tail assembly, the cruciform assembly with the wind gradients effects has better accuracy in computing acceleration response. The vertical acceleration response only induced by turbulence can be obtained for acceleration-based EDR estimation. Furthermore, with the optimized acceleration response, the estimated EDR value has got better accuracy and stability.https://www.mdpi.com/2073-4433/12/6/799aircraft accelerationeddy dissipation ratelinear-field approximationturbulenceunsteady vortex lattice method |
| spellingShingle | Debao Wang Zhenxing Gao Hongbin Gu Xinyu Guan The Optimization of Aircraft Acceleration Response and EDR Estimation Based on Linear Turbulence Field Approximation Atmosphere aircraft acceleration eddy dissipation rate linear-field approximation turbulence unsteady vortex lattice method |
| title | The Optimization of Aircraft Acceleration Response and EDR Estimation Based on Linear Turbulence Field Approximation |
| title_full | The Optimization of Aircraft Acceleration Response and EDR Estimation Based on Linear Turbulence Field Approximation |
| title_fullStr | The Optimization of Aircraft Acceleration Response and EDR Estimation Based on Linear Turbulence Field Approximation |
| title_full_unstemmed | The Optimization of Aircraft Acceleration Response and EDR Estimation Based on Linear Turbulence Field Approximation |
| title_short | The Optimization of Aircraft Acceleration Response and EDR Estimation Based on Linear Turbulence Field Approximation |
| title_sort | optimization of aircraft acceleration response and edr estimation based on linear turbulence field approximation |
| topic | aircraft acceleration eddy dissipation rate linear-field approximation turbulence unsteady vortex lattice method |
| url | https://www.mdpi.com/2073-4433/12/6/799 |
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