The effect of suction pipe leaning angle on the internal flow of pump sump Lee, Youngbum; Kim, Kyung-Yup; Chen, Zhenmu; Choi, Young-Do;
A better flow condition for the intake of pump is provided by the sump pump that connects the forebay to the intake of the pump station. If the suction sump is improperly shaped or sized, air-entraining vortices or submerged vortices may develop. These phenomena may greatly affect pump operation if vortices become sufficiently large. Moreover, any remaining vortices in the pump flow passage may result in an increase in the noise and vibration of the pump. Therefore, the vortices in the pump flow passage must be reduced to achieve good pump sump station performance. In this study, the effect of suction pipe leaning angle on the pump sump's internal flow is investigated. Additionally, a pipe type with an elbow shape is investigated. The results show that the air entraining vortices occur under the condition of a water level ratio H/D = 1.31 for each suction pipe type.
Pump sump;Leaning angle;Internal flow;
Japan Association of Agricultural Engineering Entreprise, Pumping Station Engineering Handbook, Japan, 1991.
S. K. Park, J. G. Yun, and H. C. Yang, "Experiment investigation of the development of a rotor type slurry pump," Journal of the Korean Society of Marine Engineering, vol. 39, no. 4, pp. 456-462, 2015.
K. S. Kim, K. H. Jung, H. Y. Kim, N. H. kim, and J. H. Cho, "Development of drainage pump for rescue sinking ship," Journal of the Korean Society of Marine Engineering, vol. 39, no. 3, pp. 248-254, 2015.
S. Li, J. M. Silve, Y. Lai, L. J. Weber, and V. C. Patel, "Three-dimensional simulation of flows in practical water-pump intakes," Journal of Hydroinformatics, vol. 8, no. 2, pp. 111-124, 2006.
M. Ansar and T. Nakato, "Experimental study of 3D pumpintake flows with and without cross flow," Journal of Hydraulic Engineering, vol. 127, no. 10, pp. 825-834, 2001.
Turbomachinery Society of Japan, Standard Method for Model Testing the Performance of a Pump Sump, TSJ S002, 2005.
J. Matsui, Y. Sugino, and K. Kawakita, "Numerical Simulation on Flow in Pump Sump with Free Surface," Proceeding of the 6th International Symposium on Fluid Machinery and Fluids Engineering, 2014.
F. R. Menter, M. Kuntz, and R. Langtry, "Ten years of industrial experience with the SST turbulence model," Proceeding of the Fourth International Symposium on Turbulence, Heat and Mass Transfer, Begell House, Redding, CT, 2003.