03.1 - Aerodynamics – CFD Methods and Validation
ASSESSING VORTEX BREAKDOWN AND COUPLING IN DELTA WING PLANFORMS THROUGH HIGH-FIDELITY DDES SIMULATIONS
T.A. Missato¹, R.G. Annes da Silva¹, A.F. de Castro da Silva¹, T. Wainwright, Zenotech, United Kingdom; ¹Instituto Tecnológico de Aeronáutica, Brazil
This study uses zCFD (RANS/DDES) to compare delta wing aerodynamics, focusing on vortex coupling, stagnation, and breakdown at high angles of attack. RANS matches lift/drag for a 65° wing but limits pitching moment accuracy. DDES resolves unsteady physics, providing spectral analysis of surface pressure fluctuations for double-delta and canard vortex interaction mechanisms.
DOI: 10.71945/icas2026_0939