Simulation analysis method for analyzing ternary catalytic converter based on CFD technology

Abstract

The invention discloses a simulation analysis method for analyzing ternary catalytic converter based on the CFD technology. The method comprises the steps that CFD preprocessing is carried out based on the ternary catalytic converter to be processed; CFD solving is carried out based on a CFD preprocessing result; CFD postprocessing is carried out based on the CFD solving result. According to the simulation analysis method for analyzing the ternary catalytic converter based on the CFD technology, the defects that in the prior art, the operation process is complex, the application range is small and reliability is low can be overcome so as to achieve the advantages that the operation process is simple, the application range is wide, and reliability is high.

Description

Technical field [0001] The invention involves computational Fluid Dynamics (CFD) technology, which is specific to a simulation analysis method based on CFD technology analysis. Background technique [0002] The gas released from the engine usually contains toxicity and needs to be purified before the atmosphere. The three yuan catalytic converter (TCC, referred to as a triple metacarmer or catalyst) is used to reduce emissions gas toxicityA device.One or more catalyst carriers are covered in the ternary catalyst, which is called a triangular catalytic body. Its material is ceramic material. The internal structure is very complicated. It is a porous medium.(Note: The "catalytic body" in the article refers to the carrier of coating the high -efficiency active catalyst. The "catalyst" in the article refers to the ternary catalyst).But at the same time, it also limits the flow of gas and increases back pressure.There are two structures of commonly used catalysts: one is the same sex,...

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

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