Discussion of “Direct Solutions for Uniform Flow Parameters of Wide Rectangular and Triangular Sections” by Ahmed A. Lamri, Said M. Easa, Mohamed T. Bouziane, Mohammad Bijankhan, and Yan-Cheng Han - Lotfi ZEGHADNIA, Imad BOUKHARI, Ali REZAIGUIA and Fares LAOUACHERIA (My University, 2021)