Journal
AEROSPACE SCIENCE AND TECHNOLOGY
Volume 62, Issue -, Pages 98-107Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ast.2016.11.029
Keywords
Synthetic jet control; Nonlinear reduced-order model; Kriging surrogate; Parametric analysis; Cavity shape
Categories
Funding
- National Natural Science Foundation of China [91016022]
- Priority Academic Program of Jiangsu Higher Education Institutions
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A low dimensional model for synthetic jet control has been developed which uses Kriging surrogate to predict the unsteady aerodynamic loads and the nonlinearities at high angle of attack. First, parametric analyses are performed by Computational Fluid Dynamics (CFD) to study the effect on the improvement of aerodynamic characteristics for different governing parameters, especially cavity shape. It is found that the proposed cavity shape could enhance the aerodynamic performance of active flow control. Further, for the optimized cavity shape, the nonlinear Reduced-Order Model (ROM) of synthetic jet control is constructed via Kriging surrogate, and the accuracy and efficiency of the proposed ROM are validated by comparing with the direct CFD solutions. The simulation results show that the established ROM can mimic the nonlinear and unsteady aerodynamic response of synthetic jet control accurately without exhaustive computational resources. (C) 2016 Elsevier Masson SAS. All rights reserved.
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