A Quasi-dimensional Charge Motion and Turbulence Model for Combustion and Emissions Prediction in Diesel Engines with a fully Variable Valve Train(Wissenschaftliche Reihe Fahrzeugtechnik Universität Stuttgart)

用于全可变气门机构柴油发动机燃烧及排放预测的准维电荷运动与湍流模型

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作      者
出版时间
2021年10月02日
装      帧
平装
ISBN
9783658357733
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页      码
141
开      本
8.30 x 8.00 x 0.30
语      种
英文
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图书简介
Qirui Yang develops a model chain for the simulation of combustion and emissions of diesel engine with fully variable valve train (VVT) based on extensive 3D-CFD simulations, and experimental measurements on the engine test bench. The focus of the work is the development of a quasi-dimensional (QDM) flow model, which sets up a series of sub-models to describe phenomenologically the swirl, squish and axial charge motions as well as the shear-related turbulence production and dissipation. The QDM flow model is coupled with a QDM combustion model and a nitrogen oxides (NOx) / soot emission model. With the established model chain, VVT operating strategies of diesel engine can be developed and optimized as part of the simulation for specific engine performance parameters and the lowest NOx and soot emissions.
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