During the course of the test campaign, modifications were introduced to the layout of the interior of the pump chamber to improve the hydraulic performance. This included baffle columns, which is vertical columns that slow down the flow and dissipate energy as water enters the pump chamber. Here, a calm and well distributed flow is achieved in the pump chamber, which ensured that all evaluation parameters were well within the acceptable limits according to international guidelines.
For this project, DHI made use of our expertise within physical scale model tests of hydraulic structures and pumping stations. At our model test facilities, we perform tests with pumping stations in a dedicated test bench, making sure all equipment is in place for a full hydraulic assessment, forming the basis for verification against relevant standards. In addition to physical model tests, DHI also has the expertise to perform detailed numerical CFD simulations of pumping stations, which is often a valuable approach in combination with physical model tests.