Assessment of downward draught in high-glazing facades in cold climates – experimental and CFD study into draught control with a 21-type radiatorKarl-Villem Võsa, Andrea Ferrantelli and Jarek KurnitskiE3S Web Conf., 246 (2021) 02002DOI: https://doi.org/10.1051/e3sconf/202124602002