EXPERIMENTAL EVALUATION OF THE SOLID PARTICLES BEHAVIOR IN A VERTICAL AIR FLOW BY USING IMAGING ANALYSIS. Journal of Engineering Studies and Research, [S. l.], v. 26, n. 4, p. 61–68, 2021. DOI: 10.29081/jesr.v26i4.237. Disponível em: https://jesr.ub.ro/journal/article/view/237. Acesso em: 13 sep. 2025.