Abstract— A frozen rotor method based on a mixture multiphase flow model, an RNG k–ε dual-equation turbulence model, and a SIMPLE algorithm is used to perform a numerical simulation of steady flow in a sewage pump that transports solid and liquid phase flows. The method is also utilized to analyze the effect of solid-phase particle density on the hydraulic performance of the sewage pump and predict the wear degree of the overflow components. Results of the study indicate that with the increasing density of solid particles, the head curve of the pump initially decreased and then increased, that is, the head curve had the minimum value. Additionally, the efficiency curve of the pump increased, decreased, and then increased again, indicating an insignificant overall change. Meanwhile, the pump shaft power showed a monotonic upward trend. When the solid-phase density is less than, equal to, and greater than the liquid-phase density, solid-phase concentration on the blade pressure surface shows a distribution law more than, equal to, and less than 10%, respectively. With the increase in density of the delivered solid particles, solid-phase concentration on the blade pressure surface shows a decreasing trend.
Keywords— sewage pump, particle density, frozen rotor method, numerical calculation.
Click here to Download Full Paper
AD Publications is a rapidly growing academic publisher in the fields of Engineering, Medical-Health, Environmental Science and Agriculture Research. AD Publications is a registered organization broad-based open access and publishes most exciting researches with respect to the subjects of our journals. The Journals is being indexed and abstracted by all major global current awareness and alerting services.
The organization aims at undertaking, co- coordinating and promoting research and development. It provides professional and academic guidance in the field of basic education, Higher Education as well in the Technical Education. Our Aims is to Promote and support, High Quality basic, Scientific Research and development in fields of Engineering, Medical-Health, Environmental Science and Agriculture Research and to Generate Public awareness, provide advice to scholar’s researchers and communicate research outcomes.
Some Important Links About Research Journal
International Journal
Agriculture Journal
Medical Journal
Environmental Journal
Engineering Journal