Method for adaptive variable spacing arrangement of side-type intake vortex suppression beam

CN122241944APending Publication Date: 2026-06-19NANJING HYDRAULIC RES INST

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: NANJING HYDRAULIC RES INST
Filing Date: 2026-05-25
Publication Date: 2026-06-19

AI Technical Summary

Technical Problem

Existing technologies for the design of vortex-suppressing beams in side-inlet systems suffer from problems such as the lack of physical mechanisms for design parameters, the disruption of flow field feedback mechanisms, and the tendency for the optimization process to diverge, making it difficult to achieve a suitable arrangement of vortex-suppressing beams.

Method used

By acquiring flow field data in front of the inlet under multiple operating conditions, extracting vorticity characteristics, calculating spatial distribution indices, and performing envelope processing, the initial installation position and spacing distribution sequence of the vortex-eliminating beams are determined. Feedback updates are then performed through numerical simulation to achieve adaptive variable spacing arrangement of the vortex-eliminating beams.

Benefits of technology

It solves the problems of missing traditional design mechanisms and flow field feedback divergence, realizes the physical adaptive arrangement of anti-vortex components, and improves the hydraulic anti-vortex safety and operational efficiency of the inlet.

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Abstract

This invention constructs an adaptive variable spacing arrangement method for vortex-suppressing beams at side inlets. Specifically, it involves: acquiring multi-condition flow field data in front of the inlet, including time-series velocity fields of the vortex generation zone under typical operating conditions; extracting vorticity characteristics based on the flow field data and calculating spatial distribution indices characterizing the contribution of each spatial location within the generation zone to vortex circulation; performing envelope processing on the spatial distribution indices under multiple conditions to obtain a comprehensive envelope distribution for design; determining the initial installation position and spacing distribution sequence of the vortex-suppressing beams within the effective range based on the comprehensive envelope distribution; constructing a beam-containing flow field based on the initial spacing distribution sequence and performing numerical simulation; updating the spacing based on the evaluation results of the beam-containing flow field; terminating the iteration when the convergence criterion is met; and outputting an adaptive variable spacing arrangement scheme for the vortex-suppressing beams. This invention solves the problems of missing design mechanisms and flow field feedback divergence in traditional methods, achieving physically adaptive arrangement of vortex-suppressing components.

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