Prediction of a Laminar Separation Bubble on low-Reynolds Airfoils using Variational Multiscale Method

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdragepeer review

Samenvatting

The paper presents the application of a finite element numerical approach for predicting the development and locating the Laminar Separation Bubble (LSB) on low Reynolds airfoils. The method is a linearized and segregated variation of the Variational Multi-Scale method (LS-VMS). The aim is to demonstrate the validity of this new method, overcoming the need for calibration based on experiments and/or custom-fitting transition functions. It has been tested on the SD7003 airfoil at Re = 60 000, obtaining results aligned with previously published experimental and numerical results. Furthermore, it has been tested for the DU89-134 profile, a high lift-to-drag ratio airfoil used for high-altitude pseudo-satellite applications. For this geometry, various configurations (AoA = 5, Re = 250 000, 500 000) compatible with low stratospheric flight have been examined and compared with RANS simulations using the γ - Reθ transitional model showing close agreement.

Originele taal-2Engels
TitelAIAA Aviation Forum and ASCEND, 2024
UitgeverijAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN van geprinte versie9781624107160
DOI's
StatusGepubliceerd - 2024
EvenementAIAA Aviation Forum and ASCEND, 2024 - Las Vegas, Verenigde Staten van Amerika
Duur: 29 jul. 20242 aug. 2024

Publicatie series

NaamAIAA Aviation Forum and ASCEND, 2024

Congres

CongresAIAA Aviation Forum and ASCEND, 2024
Land/RegioVerenigde Staten van Amerika
StadLas Vegas
Periode29/07/242/08/24

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