Abstract
Abstract The article presents the results of numerical analyses and experimental research of the influence of various types of stators on a liquid flow through a centrifugal pump with a hole impeller. It is a continuation of authors research of cooperation pump stators with alternative types of impellers which work in ultra low specific speed. Hole impellers have become a significant alternative to classical ones in a range of extremely low specific speed n q <10. The aim of the research is to verify the quality as well as quantity of computer modeling results, and to estimate accuracy by examining the impact of a grid and a turbulence model with which the numerical simulations reflect the actual flow.Knowledge concerning construction of hydraulic elements of centrifugal pumps working in the range of parameters corresponding specific speed (n q <10) is insufficient. The outlet elements were tested in various configurations of constructional features. The complexity of the construction of the stator can significantly affect the manufacturing costs of pump unit.
Highlights
Pumps are the most commonly used among energy consuming decides in the industry
The article presents the results of numerical analyses and experimental research of the in uence of various types of stators on a liquid ow through a centrifugal pump with a hole impeller
It is a continuation of authors research of cooperation pump stators with alternative types of impellers which work in ultra low speci c speed
Summary
Pumps are the most commonly used among energy consuming decides in the industry. It is estimated that the. This paper discuss with the experimental and numerical study of the ow in the two types of pump stators - annular casing and spiral casing - which works with hole impeller. It is a continuation of authors research [2] of cooperation pump stators with alternative types of impellers which work in ultra low speci c speed. Similar research have been performed in literature [3,4,5,6,7] In this studies have been used blade impellers in di erent types and con gurations. An good example of such a construction is a hole impeller which works in a range of ultra low speci c speed nq
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