涡轮增压器压气机模型流体域的建立和网格的生成

The Establishment of the Fluid Domain and Mesh Generation of the Compressor Model of the Turbocharger for Vehicles

本文介绍了车用涡轮增压器压气机模拟3D模型的建立与网格划分方法。首先运用CATIA软件对涡轮增压器压气机涡管和压气机的实际3D模型以及模拟用的流体域模型进行建模,并运用ANSYS MESH模块对涡管以及压气机进行网格划分,网格结构主要为四面体结构。在压气机叶片部分,采用ANSYS BLADEGEN模块,在输入设计参数后,其模块自动生成叶片部分的流体域模型。再将该叶片模型导入到ANSYS Turbo grid模块中进行网格生成,其网格形式为六面体,为后续的优化设计打下基础。

This article introduces the establishment and meshing method of the simulation 3D model of the compressor for the vehicle.First,use CATIA software to model the actual 3D model of the turbocharger compressor scroll and compressor and the fluid domain model for simulation,and use the ANSYS MESH module to mesh the scroll and compressor,and the grid structure Mainly tetrahedral structure.In the compressor blade part,the ANSYS BLADEGEN module is used.After inputting the design parameters,the module automatically generates the fluid domain model of the blade part.Then import the blade model into the ANSYS Turbo grid module for grid generation.The grid form is a hexahedron,which lays the foundation for the subsequent optimization design.