A numerical study of the effects of swirl chamber passage hole geometry on the flow characteristics of a swirl chamber type diesel engine

Gyeung Ho Choi; Sung Hoon Kim; Tae Yun Kwon; Ju Hee Yun; Yon Jong Chung; Chang Uk Ha; Jong Soon Lee; Sung Bin Han

doi:10.1243/09544070D18804

A numerical study of the effects of swirl chamber passage hole geometry on the flow characteristics of a swirl chamber type diesel engine

Gyeung Ho Choi, Sung Hoon Kim, Tae Yun Kwon, Ju Hee Yun, Yon Jong Chung, Chang Uk Ha, Jong Soon Lee, Sung Bin Han

Department of Interdisciplinary Studies

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

This research simulates the in-cylinder flow of a swirl chamber type diesel engine using a computational fluid dynamics (CFD) code and reveals the generation and distortion of swirling, tumbling vortices and their influence on turbulence kinetic energy depending on the shape, angle, and area of the jet passage. The CFD code was applied to the intake and compression processes. Results show that flow characteristics were affected by inflow velocity, which depends on the change in the jet passage shape. The swirl ratio was increased as a result of a decrease in the jet passage area. Turbulence kinetic energy was generated by mixing effects of the swirling and tumbling vortices.

Original language	English
Pages (from-to)	459-470
Number of pages	12
Journal	Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
Volume	220
Issue number	4
DOIs	https://doi.org/10.1243/09544070D18804
State	Published - 2006

Keywords

Computational fluid dynamics
Cross-tumble ratio
Moving grid
Passage hole
Swirl chamber
Swirl flow
Swirl ratio
Tumble ratio
Turbulence kinetic energy

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10.1243/09544070D18804

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Choi, G. H., Kim, S. H., Kwon, T. Y., Yun, J. H., Chung, Y. J., Ha, C. U., Lee, J. S., & Han, S. B. (2006). A numerical study of the effects of swirl chamber passage hole geometry on the flow characteristics of a swirl chamber type diesel engine. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 220(4), 459-470. https://doi.org/10.1243/09544070D18804

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title = "A numerical study of the effects of swirl chamber passage hole geometry on the flow characteristics of a swirl chamber type diesel engine",

abstract = "This research simulates the in-cylinder flow of a swirl chamber type diesel engine using a computational fluid dynamics (CFD) code and reveals the generation and distortion of swirling, tumbling vortices and their influence on turbulence kinetic energy depending on the shape, angle, and area of the jet passage. The CFD code was applied to the intake and compression processes. Results show that flow characteristics were affected by inflow velocity, which depends on the change in the jet passage shape. The swirl ratio was increased as a result of a decrease in the jet passage area. Turbulence kinetic energy was generated by mixing effects of the swirling and tumbling vortices.",

keywords = "Computational fluid dynamics, Cross-tumble ratio, Moving grid, Passage hole, Swirl chamber, Swirl flow, Swirl ratio, Tumble ratio, Turbulence kinetic energy",

author = "Choi, {Gyeung Ho} and Kim, {Sung Hoon} and Kwon, {Tae Yun} and Yun, {Ju Hee} and Chung, {Yon Jong} and Ha, {Chang Uk} and Lee, {Jong Soon} and Han, {Sung Bin}",

year = "2006",

doi = "10.1243/09544070D18804",

language = "English",

volume = "220",

pages = "459--470",

journal = "Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering",

issn = "0954-4070",

publisher = "SAGE Publications Inc.",

number = "4",

}

Choi, GH, Kim, SH, Kwon, TY, Yun, JH, Chung, YJ, Ha, CU, Lee, JS & Han, SB 2006, 'A numerical study of the effects of swirl chamber passage hole geometry on the flow characteristics of a swirl chamber type diesel engine', Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, vol. 220, no. 4, pp. 459-470. https://doi.org/10.1243/09544070D18804

A numerical study of the effects of swirl chamber passage hole geometry on the flow characteristics of a swirl chamber type diesel engine. / Choi, Gyeung Ho; Kim, Sung Hoon; Kwon, Tae Yun et al.
In: Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, Vol. 220, No. 4, 2006, p. 459-470.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - A numerical study of the effects of swirl chamber passage hole geometry on the flow characteristics of a swirl chamber type diesel engine

AU - Choi, Gyeung Ho

AU - Kim, Sung Hoon

AU - Kwon, Tae Yun

AU - Yun, Ju Hee

AU - Chung, Yon Jong

AU - Ha, Chang Uk

AU - Lee, Jong Soon

AU - Han, Sung Bin

PY - 2006

Y1 - 2006

N2 - This research simulates the in-cylinder flow of a swirl chamber type diesel engine using a computational fluid dynamics (CFD) code and reveals the generation and distortion of swirling, tumbling vortices and their influence on turbulence kinetic energy depending on the shape, angle, and area of the jet passage. The CFD code was applied to the intake and compression processes. Results show that flow characteristics were affected by inflow velocity, which depends on the change in the jet passage shape. The swirl ratio was increased as a result of a decrease in the jet passage area. Turbulence kinetic energy was generated by mixing effects of the swirling and tumbling vortices.

AB - This research simulates the in-cylinder flow of a swirl chamber type diesel engine using a computational fluid dynamics (CFD) code and reveals the generation and distortion of swirling, tumbling vortices and their influence on turbulence kinetic energy depending on the shape, angle, and area of the jet passage. The CFD code was applied to the intake and compression processes. Results show that flow characteristics were affected by inflow velocity, which depends on the change in the jet passage shape. The swirl ratio was increased as a result of a decrease in the jet passage area. Turbulence kinetic energy was generated by mixing effects of the swirling and tumbling vortices.

KW - Computational fluid dynamics

KW - Cross-tumble ratio

KW - Moving grid

KW - Passage hole

KW - Swirl chamber

KW - Swirl flow

KW - Swirl ratio

KW - Tumble ratio

KW - Turbulence kinetic energy

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JO - Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering

JF - Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering

IS - 4

ER -

A numerical study of the effects of swirl chamber passage hole geometry on the flow characteristics of a swirl chamber type diesel engine

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