Analysis of pressure pulsation and energy characteristics of guide vane for axial flow pump based on Hilbert–Huang transform considering impeller–guide vane interaction
Abstract:In order to explore the characteristics of pressure pulsation signals and energy distribution of water flow at the guide vane considering impeller–guide vane interaction. The numerical simulation of the vertical axial flow pump device's steady and unsteady three-dimensional flow fields was carried out. The Hilbert–Huang method was used to conduct empirical mode decomposition decomposition and Hilbert spectrum analysis of pressure pulsation signal at each monitoring point in the inlet and outlet regions of the … Show more
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