PREDICTION OF AERODYNAMIC DERIVATIVES USING COMPUTATIONAL FLUID DYNAMICS (CFD) AT TRANSONIC SPEED
Keywords:
Computational, Derivatives, Prediction, Transonic, UnsteadyAbstract
This paper aims on the evaluation of the aerodynamic derivatives from computational fluid dynamics to obtained derivatives at transonic speed. The derivatives are computed using the equation of Reynolds-Averaged-Navier-Stokes and a time-domain flow solver. In order to predict this study, standard dynamic model geometry is adopted. Three separated method is used for the calculation of aerodynamic derivatives. Then, the comparable among low-fidelity solver, high-fidelity computational and experimental data available show a satisfactory agreement was observed simultaneously. The conducted study shows the evaluation of unsteady aerodynamic derivatives prediction useful for longitudinal motion. The derivatives such as normal force derivatives and pitching moment derivatives were playing an important derivative for the aerodynamic coefficient for the dynamic motion analysis.
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