Numerical Simulation on Aerodynamics of Multi-Element Airfoil with Drooped Spoiler in Ground EffectJiang Liu, Junqiang Bai, Guozhu Gao, Min Chang and Nan LiuJNWPU, 37 1 (2019) 167-176DOI: https://doi.org/10.1051/jnwpu/20193710167