Some flow patterns within ventilation strategy coupled to energy efficiency Souad Morsli, Rachid Bennacer, Mohammed El Ganaoui, Harry Ramenah and Alain Carmasol Eur. Phys. J. Appl. Phys., 88 1 (2019) 10902 Published online: 13 January 2020 DOI: 10.1051/epjap/2019190232