Researches on the separation of impurities from a seed flow based on the aerodynamic principleGheorghe Stroescu, Anişoara Păun, Gheorghe Voicu, Carmen Brăcăcescu, Radu Popa and Vlad PopaE3S Web Conf., 112 (2019) 03011DOI: https://doi.org/10.1051/e3sconf/201911203011