Boundary conditions modelling of one-dimensional gas flows in an internal combustion engine

被引：11
|
作者：
Chalet, D. [1 ]
Chesse, P. [1 ]
Hetet, J. F. [1 ]
机构：
[1] CNRS, Lab Mecan Fluides, Ecole Cent Nantes, UMR 6598, Nantes, France
来源：
INTERNATIONAL JOURNAL OF ENGINE RESEARCH | 2008年 / 9卷 / 04期
关键词：
gas dynamics; pressure waves propagation; unsteady flow; one-dimensional approach; internal combustion engine;
D O I：
10.1243/14680874JER01008
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The aim of this paper is to improve the boundary conditions modelling for one-dimensional simulation codes. First, a literature survey is made in order to present the main equations and literature models, then a detailed description of the methodology is presented. Cross-sectional area variations and bends are studied using a new methodology. New models are then established that depend on the geometrical configuration and the flow characteristics. Finally, numerical results are compared with experimental results from a shock test bench. The new models are found to give better results for the instantaneous pressure signals and to improve flow calculations significantly.
引用
收藏
页码：267 / 282
页数：16
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