Effect of a dual air inlet port of the 4-valve CI engine on the swirl flow generated at the bottom region of the cylinder using the PIV technique

The in-cylinder flow in diesel engines significantly affects fuel-air mixing, combustion, and emissions. The present study investigates how engine properties such as the engine speed and intake port affect the swirl flow of a single cylinder diesel engine. Using the obtained velocity data, the stren...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Saad ALJARF, Hardeep SINGH, Gerard NDIZEYE, Mitsuhisa ICHIYANAGI, Takashi SUZUKI
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2021
Materias:	swirl intake ports engine speed particle image velocimetry (piv) in-cylinder flow Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/6f5b057c3f2c45978598dc32e5adea10
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:6f5b057c3f2c45978598dc32e5adea10
record_format	dspace
spelling	oai:doaj.org-article:6f5b057c3f2c45978598dc32e5adea102021-11-29T06:05:55ZEffect of a dual air inlet port of the 4-valve CI engine on the swirl flow generated at the bottom region of the cylinder using the PIV technique2187-974510.1299/mej.20-00392https://doaj.org/article/6f5b057c3f2c45978598dc32e5adea102021-03-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/8/2/8_20-00392/_pdf/-char/enhttps://doaj.org/toc/2187-9745The in-cylinder flow in diesel engines significantly affects fuel-air mixing, combustion, and emissions. The present study investigates how engine properties such as the engine speed and intake port affect the swirl flow of a single cylinder diesel engine. Using the obtained velocity data, the strength of the swirl flow was calculated and represented by swirl ratio. It is observed from experiments that, the swirl flow of a diesel engine is affected by changing the engine speed and the area of the intake port, in which the center position of the swirl flow was identified during intake and compression strokes. Besides, the in-cylinder flow is also affected by the opening area of the helical port such that when the opening increases, the center of swirl flow moves away from the center of cavity and the swirl ratio becomes smaller. Furthermore, by reducing the aperture of the helical port a more stable swirl was acquired. The obtained experimental results revealed that, the tangential port which generates a large-scale intake flow interacted with the small-scale swirl flow generated by the highly tilted helical port. Additionally, the inflow created by the helical port disturbed the swirl flow generated by the tangential port. The results also illustrated that the tangential port showed a higher amount of turbulent kinetic energy inside the piston concavity. In addition, tangential port leads the turbulent kinetic energy toward the outer periphery and helical port resulted to the inner side of piston concavity.Saad ALJARFHardeep SINGHGerard NDIZEYEMitsuhisa ICHIYANAGITakashi SUZUKIThe Japan Society of Mechanical Engineersarticleswirlintake portsengine speedparticle image velocimetry (piv)in-cylinder flowMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 8, Iss 2, Pp 20-00392-20-00392 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	swirl intake ports engine speed particle image velocimetry (piv) in-cylinder flow Mechanical engineering and machinery TJ1-1570
spellingShingle	swirl intake ports engine speed particle image velocimetry (piv) in-cylinder flow Mechanical engineering and machinery TJ1-1570 Saad ALJARF Hardeep SINGH Gerard NDIZEYE Mitsuhisa ICHIYANAGI Takashi SUZUKI Effect of a dual air inlet port of the 4-valve CI engine on the swirl flow generated at the bottom region of the cylinder using the PIV technique
description	The in-cylinder flow in diesel engines significantly affects fuel-air mixing, combustion, and emissions. The present study investigates how engine properties such as the engine speed and intake port affect the swirl flow of a single cylinder diesel engine. Using the obtained velocity data, the strength of the swirl flow was calculated and represented by swirl ratio. It is observed from experiments that, the swirl flow of a diesel engine is affected by changing the engine speed and the area of the intake port, in which the center position of the swirl flow was identified during intake and compression strokes. Besides, the in-cylinder flow is also affected by the opening area of the helical port such that when the opening increases, the center of swirl flow moves away from the center of cavity and the swirl ratio becomes smaller. Furthermore, by reducing the aperture of the helical port a more stable swirl was acquired. The obtained experimental results revealed that, the tangential port which generates a large-scale intake flow interacted with the small-scale swirl flow generated by the highly tilted helical port. Additionally, the inflow created by the helical port disturbed the swirl flow generated by the tangential port. The results also illustrated that the tangential port showed a higher amount of turbulent kinetic energy inside the piston concavity. In addition, tangential port leads the turbulent kinetic energy toward the outer periphery and helical port resulted to the inner side of piston concavity.
format	article
author	Saad ALJARF Hardeep SINGH Gerard NDIZEYE Mitsuhisa ICHIYANAGI Takashi SUZUKI
author_facet	Saad ALJARF Hardeep SINGH Gerard NDIZEYE Mitsuhisa ICHIYANAGI Takashi SUZUKI
author_sort	Saad ALJARF
title	Effect of a dual air inlet port of the 4-valve CI engine on the swirl flow generated at the bottom region of the cylinder using the PIV technique
title_short	Effect of a dual air inlet port of the 4-valve CI engine on the swirl flow generated at the bottom region of the cylinder using the PIV technique
title_full	Effect of a dual air inlet port of the 4-valve CI engine on the swirl flow generated at the bottom region of the cylinder using the PIV technique
title_fullStr	Effect of a dual air inlet port of the 4-valve CI engine on the swirl flow generated at the bottom region of the cylinder using the PIV technique
title_full_unstemmed	Effect of a dual air inlet port of the 4-valve CI engine on the swirl flow generated at the bottom region of the cylinder using the PIV technique
title_sort	effect of a dual air inlet port of the 4-valve ci engine on the swirl flow generated at the bottom region of the cylinder using the piv technique
publisher	The Japan Society of Mechanical Engineers
publishDate	2021
url	https://doaj.org/article/6f5b057c3f2c45978598dc32e5adea10
work_keys_str_mv	AT saadaljarf effectofadualairinletportofthe4valveciengineontheswirlflowgeneratedatthebottomregionofthecylinderusingthepivtechnique AT hardeepsingh effectofadualairinletportofthe4valveciengineontheswirlflowgeneratedatthebottomregionofthecylinderusingthepivtechnique AT gerardndizeye effectofadualairinletportofthe4valveciengineontheswirlflowgeneratedatthebottomregionofthecylinderusingthepivtechnique AT mitsuhisaichiyanagi effectofadualairinletportofthe4valveciengineontheswirlflowgeneratedatthebottomregionofthecylinderusingthepivtechnique AT takashisuzuki effectofadualairinletportofthe4valveciengineontheswirlflowgeneratedatthebottomregionofthecylinderusingthepivtechnique
_version_	1718407591234633728

Effect of a dual air inlet port of the 4-valve CI engine on the swirl flow generated at the bottom region of the cylinder using the PIV technique

Ejemplares similares