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Yiming Gong, Chuanqiang Gao and Weiwei Zhang
The main buffet suppression techniques of aircrafts include active and passive flow control, aiming to reduce the impact of the fluctuating loads on the airfoil. These techniques are remedies after the airfoil design. The buffet suppression is not always...
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Davide Di Pasquale and Simon Prince
Since modern transport aircraft cruise at transonic speeds, shock buffet alleviation is one indispensable challenge that civil transport research needs to be addressed. Indeed, in the transonic flow regime shock-induced separation and transonic buffet co...
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Feng Deng, Shenghua Zhang and Ning Qin
At transonic flight conditions, the buffet caused by the shockwave/boundary-layer interaction can degrade aircraft performance and even threaten their safety. In this paper, a closed-loop control using an active shock control bump (SCB) has been proposed...
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Hao Chen, Chuanqiang Gao, Jifei Wu, Kai Ren and Weiwei Zhang
Transonic buffet is a phenomenon of large self-excited shock oscillations caused by shock wave-boundary layer interaction, which is one of the common flow instability problems in aeronautical engineering. This phenomenon involves unsteady flow, which mak...
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Shenghua Zhang, Feng Deng and Ning Qin
At transonic flight conditions, the buffet caused by the interaction between the shock waves and the boundary layers can degrade an aircraft?s aerodynamic performance and even threaten its safety. In this paper, the shock control bumps, originally design...
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Jonah Harris, Bharat Lad and Sina Stapelfeldt
The increased demands of compact modern aero engine architectures have highlighted the problem of outlet guide vane (OGV) buffeting in off-design conditions. This structural response to aerodynamic excitations is characterised by increased vibration, ris...
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Yufei Zhang, Pu Yang, Runze Li and Haixin Chen
The unsteady flow characteristics of a supercritical OAT15A airfoil with a shock control bump were numerically studied by a wall-modeled large eddy simulation. The numerical method was first validated by the buffet and nonbuffet cases of the baseline OAT...
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