A simulation analysis method for three-way catalytic converter based on cfd technology

Abstract

The invention discloses a simulation analysis method for analyzing a three-way catalytic converter based on CFD technology. The results are subjected to CFD post-processing. The simulation analysis method based on CFD technology analysis of the three-way catalytic converter of the present invention can overcome the defects of complex operation process, small application range and low reliability in the prior art, so as to realize simple operation process, wide application range and reliability high merit.

Description

technical field [0001] The present invention relates to the technical field of computational fluid dynamics (Computational Fluid Dynamics, CFD for short), in particular to a simulation analysis method for analyzing a three-way catalytic converter based on CFD technology. Background technique [0002] The gas released from the engine is usually highly toxic and needs to be purified before being discharged into the atmosphere. The three-way catalytic converter (Three-Way Catalytic Converter, TCC, referred to as three-way catalytic converter or catalytic converter) is used to reduce the toxicity of exhaust gas of a device. The three-way catalytic converter is coated with one or more catalyst carriers, called the three-way catalytic body. Its material is ceramic material, and its internal structure is very complicated. It is a porous medium with a very large surface area. Because it is coated with a layer of highly efficient active catalyst (Note: "catalytic body" in the text r...

AI Technical Summary

Problems solved by technology

The three-way catalytic converter is coated with one or more catalyst carriers, called the three-way catalytic body. Its material is ceramic material, and its internal structure is very complicated. It is a porous medium with a very large surface area. Because it is coated with a layer of highly efficient active catalyst (Note: "catalytic body" in this article refers to the carrier coated with high-efficiency active catalyst, and "catalyst" in this article refers to three-way catalytic converter), which can have the largest possible redox reaction with automobile exhaust to achieve the purpose of purifying exhaust gas. But at the same time, it also restricts the flow of gas and increases the back pressure

But all involve the use of complex full-English software such as FLUENT or Star CD to solve. Pre-processing requires a special software for network planning, such as GAMBIT and post-processing requires a special software, such as Tecplot, so as to simulate the analysis process. It is very complicated and cumbersome, and requires extremely high technical background and English proficiency of engineering and technical personnel

Moreover, the application of these CFD technologies does not involve how to use an intuitive, simple, convenient and fast software to efficiently simulate the catalytic converter for vehicles in order to optimize the shape and structure of the catalytic converter

[0004] In the process of realizing the present invention, the inventor found that there are at least defects in the prior art such as complicated operation process, small scope of application and low reliability

Images