A method for simulating fluid flow inside a porous medium solid-phase converter

Abstract

The invention discloses a method for simulating the internal fluid flow of a porous medium solid-phase converter. A geometric simulation area of ​​a porous medium is established by sintering a solid-phase converter sample made of glass beads; Slice image sequences are processed and three-dimensionally reconstructed, the 3D reconstruction model of the porous medium solid-phase converter is meshed, the fluid flow inside the porous medium converter is studied, and the solid-phase skeleton and fluid in the porous medium are analyzed based on the electric double layer theory The potential distribution of the contact surface and its neighborhood; the image processing method of 3D volume pixels is adopted, and the continuity of the solid-phase converter in porous media is considered in different directions, which improves the accuracy of the 3D reconstructed geometric model, thereby improving the simulation accuracy of the fluid distribution At the same time, it has the advantages of fast modeling, good convergence, and high portability, which can speed up the modeling of the signal conversion process involved in the fluid flow inside the porous medium solid-phase converter, and help to improve the overall performance of the liquid ring angular accelerometer.

Description

technical field [0001] The invention relates to a method for simulating fluid flow inside a porous medium solid-phase converter, belonging to the field of research on fluid flow in porous medium. Background technique [0002] The liquid ring angular accelerometer based on the interface electric double layer effect is a new type of angular accelerometer, which can achieve high precision, high dynamics and high reliability of angular acceleration under complex working conditions of multiple disturbances, variable loads, and large overloads Sexual measurement and analysis. The porous medium solid-phase converter sintered by glass microspheres is the key component of the angular accelerometer, which can realize the conversion of external pressure signals to electrical signals. The flow and distribution of the fluid inside the porous medium solid-phase converter directly affect the conversion process from the external pressure signal to the electrical signal. Therefore, the stu...

AI Technical Summary

Problems solved by technology

At present, there is a lack of experimental measurement schemes and corresponding measurement equipment to directly measure the velocity distribution, ion concentration distribution, and potential distribution near the solid-liquid interface in complex porous media. The fluid in porous media is simulated with the help of flow field simulation software, and the porous media is obtained. Details of internal fluid flow while saving research costs

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