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https://doi.org/10.21256/zhaw-3510| Publication type: | Article in scientific journal |
| Type of review: | Peer review (publication) |
| Title: | Extension of analytical indicial aerodynamics to generic trapezoidal wings in subsonic flow |
| Authors: | Da Ronch, Andrea Ventura, Antonino Righi, Marcello Franciolini, Matteo Berci, Marco Kharlamov, Daniel |
| DOI: | 10.21256/zhaw-3510 10.1016/j.cja.2018.02.008 |
| Published in: | Chinese Journal of Aeronautics |
| Volume(Issue): | 31 |
| Issue: | 4 |
| Page(s): | 617 |
| Pages to: | 631 |
| Issue Date: | 2018 |
| Publisher / Ed. Institution: | Elsevier |
| ISSN: | 1000-9361 |
| Language: | English |
| Subjects: | Indicial aerodynamics; Analytical approach; CFD; Trapezoidal wing; Compressible flow; Gust response |
| Subject (DDC): | 620: Engineering |
| Abstract: | Analytical indicial aerodynamic functions are calculated for several trapezoidal wings in subsonic flow, with a Mach number 0.3≤ Ma≤ 0.7. The formulation herein proposed extends well-known aerodynamic theories, which are limited to thin aerofoils in incompressible flow, to generic trapezoidal wing planforms. Firstly, a thorough study is executed to assess the accuracy and limitation of analytical predictions, using unsteady results from two state-of-the-art computational fluid dynamics solvers as cross-validated benchmarks. Indicial functions are calculated for a step change in the angle of attack and for a sharp-edge gust, each for four wing configurations and three Mach numbers. Then, analytical and computational indicial responses are used to predict dynamic derivatives and the maximum lift coefficient following an encounter with a one-minus-cosine gust. It is found that the analytical results are in excellent agreement with the computational results for all test cases. In particular, the deviation of the analytical results from the computational results is within the scatter or uncertainty in the data arising from using two computational fluid dynamics solvers. This indicates the usefulness of the developed analytical theories. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/2882 |
| Fulltext version: | Accepted version |
| License (according to publishing contract): | CC BY-NC-ND 4.0: Attribution - Non commercial - No derivatives 4.0 International |
| Departement: | School of Engineering |
| Organisational Unit: | Institute of Mechanical Systems (IMES) |
| Appears in collections: | Publikationen School of Engineering |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| 1-s2.0-S1000936118300621-main.pdf | 1.48 MB | Adobe PDF |  View/Open |
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Da Ronch, A., Ventura, A., Righi, M., Franciolini, M., Berci, M., & Kharlamov, D. (2018). Extension of analytical indicial aerodynamics to generic trapezoidal wings in subsonic flow. Chinese Journal of Aeronautics, 31(4), 617–631. https://doi.org/10.21256/zhaw-3510
Da Ronch, A. et al. (2018) ‘Extension of analytical indicial aerodynamics to generic trapezoidal wings in subsonic flow’, Chinese Journal of Aeronautics, 31(4), pp. 617–631. Available at: https://doi.org/10.21256/zhaw-3510.
A. Da Ronch, A. Ventura, M. Righi, M. Franciolini, M. Berci, and D. Kharlamov, “Extension of analytical indicial aerodynamics to generic trapezoidal wings in subsonic flow,” Chinese Journal of Aeronautics, vol. 31, no. 4, pp. 617–631, 2018, doi: 10.21256/zhaw-3510.
DA RONCH, Andrea, Antonino VENTURA, Marcello RIGHI, Matteo FRANCIOLINI, Marco BERCI und Daniel KHARLAMOV, 2018. Extension of analytical indicial aerodynamics to generic trapezoidal wings in subsonic flow. Chinese Journal of Aeronautics. 2018. Bd. 31, Nr. 4, S. 617–631. DOI 10.21256/zhaw-3510
Da Ronch, Andrea, Antonino Ventura, Marcello Righi, Matteo Franciolini, Marco Berci, and Daniel Kharlamov. 2018. “Extension of Analytical Indicial Aerodynamics to Generic Trapezoidal Wings in Subsonic Flow.” Chinese Journal of Aeronautics 31 (4): 617–31. https://doi.org/10.21256/zhaw-3510.
Da Ronch, Andrea, et al. “Extension of Analytical Indicial Aerodynamics to Generic Trapezoidal Wings in Subsonic Flow.” Chinese Journal of Aeronautics, vol. 31, no. 4, 2018, pp. 617–31, https://doi.org/10.21256/zhaw-3510.
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