Coupled dynamic-multidimensional modelling of free-piston engine combustion

被引：82

作者：

Mikalsen, R. ^{[1
]}

Roskilly, A. P. ^{[1
]}

机构：

[1] Univ Newcastle, Sir Joseph Swan Inst Energy Res, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

来源：

APPLIED ENERGY | 2009年 / 86卷 / 01期

关键词：

Free-piston engine; Dynamic modelling; CFD;

D O I：

10.1016/j.apenergy.2008.04.012

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Free-piston engines are under investigation by a number of research groups worldwide, as an alternative to conventional technology in applications such as electric and hydraulic power generation. The piston dynamics of the free-piston engine differ significantly from those of conventional engines, and this may influence in-cylinder gas motion, combustion and emissions formation. Due to the complex interaction between mechanics and thermodynamics, the modelling of free-piston engines is not straight-forward. This paper presents a novel approach to the modelling of free-piston engines through the introduction of solution-dependent mesh motion in an engine CFD code. The particular features of free-piston engines are discussed, and the model for engine dynamics implemented in the CFD code is described. Finally, the coupled solver is demonstrated through the modelling of a spark ignited free-piston engine generator. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：89 / 95

页数：7

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