2 results about "Flow-accelerated corrosion" patented technology

The application discloses a kind of air cooling island flow accelerated corrosion simulation test system and method, main loop subsystem, including high-purity water tank, main loop outlet pipe, electrode flow cell and main loop return pipe;The water outlet of high-purity water tank is connected with the one end of main loop outlet pipe, the other end of main loop outlet pipe is connected with the water inlet of electrode flow cell, the one end of main loop return pipe is connected with the water outlet of electrode flow cell, the other end of main loop return pipe is connected with the backwater of high-purity water tank;Dosing subsystem is used to add alkali agent or oxidizing agent to main loop outlet pipe;Flow accelerated corrosion test subsystem includes test electrode and corrosion tester;Test electrode is placed in electrode flow cell, and test electrode is connected with the input end of corrosion tester by wire;The material of test electrode is the same as the material of the equipment to be simulated air cooling island;The application realizes the real simulation of air cooling island equipment, meets the simulation of high flow rate and anaerobic condition, and the error of simulation test result is small.

This invention relates to a simulation method and system for accelerated corrosion in a two-loop pipeline. The method includes: constructing a computational domain geometric model of the two-loop pipeline; discretizing the computational domain geometric model into a finite number of grid cells; cyclically updating the grid cell node coordinates and solving the fluid control equations to obtain flow field data step by step until the convergence condition or the total simulation time is reached. The fluid control equations use the incompressible Navier-Stokes equations described by ALE as the core of the control. Simulation results are generated based on the flow field data. By introducing the incompressible Navier-Stokes equations described by ALE as the core of the fluid control equations, the influence of grid movement on fluid flow can be accurately considered during the dynamic change of the computational grid as the wall thins. This avoids the problem of fixed grids failing to capture boundary layer evolution and the element distortion caused by grid reconstruction, significantly improving the accuracy and stability of flow field simulation under dynamic boundary conditions.