A Quasi-dimensional Charge Motion and Turbulence Model for Combustion and Emissions Prediction in Diesel Engines with a fully Variable Valve Train
Produktnummer:
188d8d9e86b4f642289e7e4ebd846e697a
| Autor: | Yang, Qirui |
|---|---|
| Themengebiete: | Charge motions Combustion and emission NOx and soot Quasidimensional model Swirl Turbulence Model UserCylinder |
| Veröffentlichungsdatum: | 02.10.2021 |
| EAN: | 9783658357733 |
| Sprache: | Englisch |
| Seitenzahl: | 141 |
| Produktart: | Kartoniert / Broschiert |
| Verlag: | Springer Fachmedien Wiesbaden GmbH |
Produktinformationen "A Quasi-dimensional Charge Motion and Turbulence Model for Combustion and Emissions Prediction in Diesel Engines with a fully Variable Valve Train"
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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