کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
245026 | 501966 | 2009 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Coupled dynamic–multidimensional modelling of free-piston engine combustion Coupled dynamic–multidimensional modelling of free-piston engine combustion](/preview/png/245026.png)
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.
Journal: Applied Energy - Volume 86, Issue 1, January 2009, Pages 89–95