Computational analysis of unsteady aerodynamic loads acting on an oscillating wing in transonic flow
Samo za registrovane korisnike
2014
Konferencijski prilog (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Transonic flow includes a number of unsteady fluid flow phenomena such as local separation regions, shock–boundary layer interaction, boundary layer transition and turbulence. In general, it is difficult to accurately simulate these phenomena since they require small length and time scales i.e. substantial computational resources. The principal goal of this study is to evaluate the capability and applicability of numerical simulations to predict the aerodynamic loads acting on a harmonically oscillating wing in transonic flow. Unsteady flow-fields around a three-dimensional
oscillating half-wing model were computed using a finite-volume Navier-Stokes numerical scheme with several widely used turbulence models. The base geometry corresponds to ONERA M6 wing. The effects of grid-density were examined and presented. Numerical results from the stationary model were compared to available experimental data (AGARD-AR-138). The computations were performed at free stream Mach number of 0.84 at... variable angle-of-attack. The effects of pitching angle amplitude and oscillation frequency were also investigated. Presented results include fluid flow visualizations in the form of Mach number and pressure contours and the values of aerodynamic coefficients.
Ključne reči:
oscillating wing / URANS / turbulence / aerodynamic coefficients / transonic flowIzvor:
6th International scientific conference on defensive technologies OTEH 2014, 2014, 61-66Izdavač:
- Belgrade : Military Technical Institute - VTI
Finansiranje / projekti:
- Istraživanje i razvoj savremenih pristupa projektovanja kompozitnih lopatica rotora visokih performansi (RS-MESTD-Technological Development (TD or TR)-35035)
Kolekcije
Institucija/grupa
Mašinski fakultetTY - CONF AU - Svorcan, Jelena AU - Komarov, Dragan AU - Stupar, Slobodan AU - Posteljnik, Zorana AU - Stanojević, Marija PY - 2014 UR - https://machinery.mas.bg.ac.rs/handle/123456789/4456 AB - Transonic flow includes a number of unsteady fluid flow phenomena such as local separation regions, shock–boundary layer interaction, boundary layer transition and turbulence. In general, it is difficult to accurately simulate these phenomena since they require small length and time scales i.e. substantial computational resources. The principal goal of this study is to evaluate the capability and applicability of numerical simulations to predict the aerodynamic loads acting on a harmonically oscillating wing in transonic flow. Unsteady flow-fields around a three-dimensional oscillating half-wing model were computed using a finite-volume Navier-Stokes numerical scheme with several widely used turbulence models. The base geometry corresponds to ONERA M6 wing. The effects of grid-density were examined and presented. Numerical results from the stationary model were compared to available experimental data (AGARD-AR-138). The computations were performed at free stream Mach number of 0.84 at variable angle-of-attack. The effects of pitching angle amplitude and oscillation frequency were also investigated. Presented results include fluid flow visualizations in the form of Mach number and pressure contours and the values of aerodynamic coefficients. PB - Belgrade : Military Technical Institute - VTI C3 - 6th International scientific conference on defensive technologies OTEH 2014 T1 - Computational analysis of unsteady aerodynamic loads acting on an oscillating wing in transonic flow EP - 66 SP - 61 UR - https://hdl.handle.net/21.15107/rcub_machinery_4456 ER -
@conference{ author = "Svorcan, Jelena and Komarov, Dragan and Stupar, Slobodan and Posteljnik, Zorana and Stanojević, Marija", year = "2014", abstract = "Transonic flow includes a number of unsteady fluid flow phenomena such as local separation regions, shock–boundary layer interaction, boundary layer transition and turbulence. In general, it is difficult to accurately simulate these phenomena since they require small length and time scales i.e. substantial computational resources. The principal goal of this study is to evaluate the capability and applicability of numerical simulations to predict the aerodynamic loads acting on a harmonically oscillating wing in transonic flow. Unsteady flow-fields around a three-dimensional oscillating half-wing model were computed using a finite-volume Navier-Stokes numerical scheme with several widely used turbulence models. The base geometry corresponds to ONERA M6 wing. The effects of grid-density were examined and presented. Numerical results from the stationary model were compared to available experimental data (AGARD-AR-138). The computations were performed at free stream Mach number of 0.84 at variable angle-of-attack. The effects of pitching angle amplitude and oscillation frequency were also investigated. Presented results include fluid flow visualizations in the form of Mach number and pressure contours and the values of aerodynamic coefficients.", publisher = "Belgrade : Military Technical Institute - VTI", journal = "6th International scientific conference on defensive technologies OTEH 2014", title = "Computational analysis of unsteady aerodynamic loads acting on an oscillating wing in transonic flow", pages = "66-61", url = "https://hdl.handle.net/21.15107/rcub_machinery_4456" }
Svorcan, J., Komarov, D., Stupar, S., Posteljnik, Z.,& Stanojević, M.. (2014). Computational analysis of unsteady aerodynamic loads acting on an oscillating wing in transonic flow. in 6th International scientific conference on defensive technologies OTEH 2014 Belgrade : Military Technical Institute - VTI., 61-66. https://hdl.handle.net/21.15107/rcub_machinery_4456
Svorcan J, Komarov D, Stupar S, Posteljnik Z, Stanojević M. Computational analysis of unsteady aerodynamic loads acting on an oscillating wing in transonic flow. in 6th International scientific conference on defensive technologies OTEH 2014. 2014;:61-66. https://hdl.handle.net/21.15107/rcub_machinery_4456 .
Svorcan, Jelena, Komarov, Dragan, Stupar, Slobodan, Posteljnik, Zorana, Stanojević, Marija, "Computational analysis of unsteady aerodynamic loads acting on an oscillating wing in transonic flow" in 6th International scientific conference on defensive technologies OTEH 2014 (2014):61-66, https://hdl.handle.net/21.15107/rcub_machinery_4456 .