Numerical Analysis of Flow Characteristics in a Penstock Using COMSOL MultiphysicsXalilov Bahromjon, Zayavitdinova Nafisa, Mirzayeva Muhayyo, Nazarova Shokhida and Bobojonova MadinaE3S Web Conf., 648 (2025) 03017DOI: https://doi.org/10.1051/e3sconf/202564803017