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BMT WBM conduct a Computational Fluid Dynamic Flow Analysis
21-Oct-2009
BMT WBM was commissioned by South East Water (SEW) to conduct a Computational Fluid Dynamic (CFD) flow analysis to validate the performance of a new underground sewage pumping station design, planned to be constructed in the south of Melbourne. The particular focus of this evaluation of the preliminary design was on flow problems that may be a major hazard to pump operation.
BMT WBM prepared a hydraulic model and examined the worst-case scenarios by considering different pump operation conditions as well as flow rate. Using CFD modelling, BMT WBM engineers generated data from simulations of the predicted flow behaviour and pump performance expected to occur within the boundaries of SEW’s proposed design. Contours of vorticity and turbulent intensity were used to investigate the strength and location of swirls and turbidity respectively. Additionally, contour plots of velocity magnitude and velocity deviation in the pump intake were used to check the flow uniformity in the operating pump intake.
With the data gathered, BMT WBM was not only able to provide a detailed review of the existing design but also was able to provide SEW with design recommendations to improve areas where unfavourable flow patterns were predicted to occur. The insightful preconstruction data provided SEW with an opportunity to optimise their design and move forward through to construction with confidence.
For further information please contact
Yong Kim ykim@wbmpl.com.au
