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Descripción
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| This work presents a new method to compute instabilities associated to cross-flow transition scenarios. The method analyses base flows issued from CFD simulations (RANS model) using higher order dynamic mode decomposition (HODMD). The flow field is then approximated as an expansion of modes and it is possible to identify the primary and secondary flow instabilities, in cross-flows. The good performance of this novel method is first validated by locating the transition point related to the first instability in a low-speed 2D NLF0416 airfoil. Then, 3D cross-flow instabilities over a wing with 40? back-sweep angle (shaped from a NACA642A015 airfoil) are presented. | |
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Internacional
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Si |
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JCR del ISI
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No |
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Título de la revista
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Fluid Dynamics Conference, AIAA-Aviation |
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ISSN
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9781510868861 |
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Factor de impacto JCR
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Información de impacto
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Volumen
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DOI
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10.2514/6.2018-3700 |
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Número de revista
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Desde la página
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1 |
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Hasta la página
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6 |
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