{"title":"跨音速流动中超临界机翼上微型喷气涡流发生器的数值模拟及其温度对气动性能的影响","authors":"M. A. Brutyan, Tenzin Tadin","doi":"10.1007/s42401-023-00223-8","DOIUrl":null,"url":null,"abstract":"<div><p>This research is mainly devoted to numerical trade studies of a co-rotating array of mini-air-jet vortex generators (Mi-AJVGs) placed on a supercritical P-18-415 airfoil-based wing model. The numerical simulation is carried out at an angle of attack α = 4° and Mach number <i>M</i><sub>∞</sub> = 0.75. Three-dimensional compressible Reynolds Averaged Navier–Stokes (RANS) equations coupled with the k-ϵ realizable turbulence model are employed with an assumption of fully turbulent boundary layer. The result is the best design case out of the investigated ones in terms of the skin friction coefficient and the lift-to-drag ratio. When the Mi-AJVGs are activated, streamwise vortices acting on the separation region increase downstream skin friction and the lift-to-drag ratio. The effect of the jet to ambient temperature ratios (<i>T</i><sub>J</sub>/<i>T</i><sub>∞</sub>) on aerodynamic performance is considered.</p></div>","PeriodicalId":36309,"journal":{"name":"Aerospace Systems","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Numerical simulation of mini-air-jet vortex generators on a supercritical wing in transonic flow and the effect of temperature on its aerodynamic performance\",\"authors\":\"M. A. Brutyan, Tenzin Tadin\",\"doi\":\"10.1007/s42401-023-00223-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This research is mainly devoted to numerical trade studies of a co-rotating array of mini-air-jet vortex generators (Mi-AJVGs) placed on a supercritical P-18-415 airfoil-based wing model. The numerical simulation is carried out at an angle of attack α = 4° and Mach number <i>M</i><sub>∞</sub> = 0.75. Three-dimensional compressible Reynolds Averaged Navier–Stokes (RANS) equations coupled with the k-ϵ realizable turbulence model are employed with an assumption of fully turbulent boundary layer. The result is the best design case out of the investigated ones in terms of the skin friction coefficient and the lift-to-drag ratio. When the Mi-AJVGs are activated, streamwise vortices acting on the separation region increase downstream skin friction and the lift-to-drag ratio. The effect of the jet to ambient temperature ratios (<i>T</i><sub>J</sub>/<i>T</i><sub>∞</sub>) on aerodynamic performance is considered.</p></div>\",\"PeriodicalId\":36309,\"journal\":{\"name\":\"Aerospace Systems\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-05-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Aerospace Systems\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s42401-023-00223-8\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Earth and Planetary Sciences\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Aerospace Systems","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1007/s42401-023-00223-8","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Earth and Planetary Sciences","Score":null,"Total":0}
Numerical simulation of mini-air-jet vortex generators on a supercritical wing in transonic flow and the effect of temperature on its aerodynamic performance
This research is mainly devoted to numerical trade studies of a co-rotating array of mini-air-jet vortex generators (Mi-AJVGs) placed on a supercritical P-18-415 airfoil-based wing model. The numerical simulation is carried out at an angle of attack α = 4° and Mach number M∞ = 0.75. Three-dimensional compressible Reynolds Averaged Navier–Stokes (RANS) equations coupled with the k-ϵ realizable turbulence model are employed with an assumption of fully turbulent boundary layer. The result is the best design case out of the investigated ones in terms of the skin friction coefficient and the lift-to-drag ratio. When the Mi-AJVGs are activated, streamwise vortices acting on the separation region increase downstream skin friction and the lift-to-drag ratio. The effect of the jet to ambient temperature ratios (TJ/T∞) on aerodynamic performance is considered.
期刊介绍：
Aerospace Systems provides an international, peer-reviewed forum which focuses on system-level research and development regarding aeronautics and astronautics. The journal emphasizes the unique role and increasing importance of informatics on aerospace. It fills a gap in current publishing coverage from outer space vehicles to atmospheric vehicles by highlighting interdisciplinary science, technology and engineering.
Potential topics include, but are not limited to:
Trans-space vehicle systems design and integration
Air vehicle systems
Space vehicle systems
Near-space vehicle systems
Aerospace robotics and unmanned system
Communication, navigation and surveillance
Aerodynamics and aircraft design
Dynamics and control
Aerospace propulsion
Avionics system
Opto-electronic system
Air traffic management
Earth observation
Deep space exploration
Bionic micro-aircraft/spacecraft
Intelligent sensing and Information fusion
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