Influence of swirl, tumble and squish flows on combustion characteristics and emissions in internal combustion engine-review

Yıl 2019, Cilt: 8 Sayı: 2, 83 - 102, 20.09.2019

Mahmut Kaplan

https://doi.org/10.18245/ijaet.558258

Cited By: 11

Öz

This study gives an overview
of available literature on flow patterns such as swirl, tumble and squish in
internal combustion engines and their impacts of turbulence enhancement,
combustion efficiency and emission reduction. Characteristics of in-cylinder
flows are summarized. Different design approaches to generate these flows such
as directed ports, helical ports, valve shrouding and masking, modifying piston
surface, flow blockages and vanes are described. How turbulence produced by
swirl, tumble and squish flows are discussed. Effects of the organized flows on
combustion parameters and exhaust emission are outlined. This review reveals
that the recent investigations on the swirl, tumble and squish flows are
generally related to improving in-cylinder turbulence. Thus, more experimental
and numerical studies including the impacts of this organized flows on
turbulence production, combustion behavior and pollutant formation inside the
cylinder are needed.

Anahtar Kelimeler

Internal combustion engines, swirl, tumble and squish flows, turbulent enhancement, combustion efficiency, emission

Kaynakça

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