Performance Optimization of a Subsonic Wind Tunnel Using Multiple Screens in the Contraction ConeM. Yasep Setiawan, Ashim Al-Afif, Dwi Sudarno Putra, Edy Susanto, Budi Utomo Wisesa, Ichsan Nasution, Nuzul Hidayat and Agus BaharudinE3S Web Conf., 706 (2026) 02018DOI: https://doi.org/10.1051/e3sconf/202670602018