Numerical simulation of distribution of pollutant in channel Ilyas K. Gimaltdinov, Maxim V. Stolpovskij, Ekaterina Yu. Kochanova and Azat A. Nasyrov E3S Web Conf., 486 (2024) 04024 Published online: 07 February 2024 DOI: 10.1051/e3sconf/202448604024