Corrosion product deposition growth prediction method, storage medium and electronic equipment

By simulating the three-dimensional morphological evolution of CRUD using dynamic mesh technology and node movement algorithm, the problem of insufficient accuracy in predicting the growth of corrosion product deposits in existing technologies is solved, and high-precision reactor safety assessment is achieved.

CN122024910AActive Publication Date: 2026-05-12SHANGHAI JIAOTONG UNIV
6 Cites 0 Cited by

Patent Information

Application Number
CN202610495635.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-15
Publication Date
2026-05-12
Estimated Expiration
2046-04-15

AI Technical Summary

Technical Problem

Existing technologies struggle to accurately predict the non-uniform growth of corrosion product deposits (CRUD) in pressurized water reactors, resulting in insufficient accuracy in calculating flow fields, heat flux, and mass diffusion, which impacts reactor safety.

Method used

A three-dimensional model is established and meshed using dynamic meshing technology and node movement algorithm. The deposition rate and erosion rate of corrosion products are calculated in real time. The three-dimensional morphological evolution of CRUD is simulated by node movement. Combined with the mesh re-meshing strategy, the parameters of the key sub-model of gas-liquid two-phase flow are dynamically adapted.

Benefits of technology

It achieves dynamic high-precision simulation of CRUD three-dimensional topography, realistically reflects its encroachment effect on coolant flow channels, overcomes mesh distortion problem, improves computational stability and accuracy, and provides a more reliable reactor safety assessment scheme.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention relates to the technical field of reactors, in particular to a corrosion product deposition growth prediction method, a storage medium and electronic equipment. The corrosion product deposition growth prediction method comprises the following steps: establishing a three-dimensional model, and carrying out mesh generation on the three-dimensional model to obtain a mesh model; obtaining the thickness increment of the corrosion product; converting the thickness increment of the corrosion product on the grid unit surface into a node movement amount by using a node movement algorithm, and driving grid nodes to displace in each time step length according to the calculated node movement amount based on a dynamic grid technology; obtaining an updated grid model; the deposition rate and the erosion rate of the corrosion product are solved on the updated grid model, and the thickness increment of the updated corrosion product is obtained. The application of the invention can improve the safety of the reactor, and has important values for protecting the integrity of the fuel rod, preventing the leakage of radioactive substances and ensuring the safe operation of the reactor.
Need to check novelty before this filing date? Find Prior Art