This research aims to evaluate the behavior of water flow in the Huallaga irrigation system using the software tools ANSYS 2024 and WaterCAD 2021, with the objective of understanding the impact of water hammer in the transmission line located in the province of Huallaga, in the department of Huánuco. The study was conducted through hydraulic simulations, calculating the pressure and flow velocity along the distribution network under different flow rates. The results show that the irrigation system can handle flow rates of up to 15 L/s without the occurrence of water hammer or posing any significant risk to the system. This ensures safe and efficient operation under normal conditions. However, in scenarios involving elevated flow rates of 50 L/s, the results indicate that pressures reach critical values, which could compromise the integrity of the pipelines and other system components due to the high pressure generated by water hammer. This scenario is also linked to the potential effects of climate change, which could alter precipitation patterns and increase flow variability. The integration of climate change scenarios into the simulation models is essential to ensure that the system is resilient and capable of operating efficiently in the future, guaranteeing water supply under increasingly unpredictable climate conditions.