L. Chenga
, Y. L. Zhanga,†
, J. F. Lib
Frontiers in Heat and Mass Transfer, Vol.19, pp. 1-7, 2022, DOI:10.5098/hmt.19.32
Abstract The internal characteristics during rotational speed fluctuation have an important influence on centrifugal pump to avoid or utilize its transient
performance. In this paper, a circulation piping system that includes a low-specific-speed centrifugal pump is established to study the energy
distribution characteristics in a centrifugal pump during speed fluctuation. The unsteady flow in the entire system is numerically calculated with a
user-defined function, the sliding grid method, and the RNG k-ε turbulence model. Then, the energy distribution of the transient flow field in the
centrifugal pump model during speed fluctuation is diagnosed with vortex dynamics by using flow section and… More >
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