The study looked at how water flows over triangular broad-crested weirs using computer simulations. They tested different opening angles and flow rates to see how it affects the water level and flow downstream. They found that increasing the opening angle of the weir leads to a drop in water level upstream. At lower flow rates, an uncovered area forms downstream the triangular weir, while a thin layer of water covers the bed downstream of a rectangular weir. These results were compared with existing data and matched well. It's important to strengthen the area downstream the weirs to resist water power and reduce drift risk.