Numerical Investigations on the Port Flow Field of a Two-Stroke Poppet Valve Engine

This paper describes the model and simulation results of port flow field investigations on a two-stroke poppet valve engine. Higher power to weight ratio has been the advantage of a two-stroke engine over the four-stroke engine. However, poor emissions have plagued two-stroke ported design which is...

Full description

Bibliographic Details
Main Authors:	Mohd Razali, Hanipah, Zamri, Mohamed
Format:	Conference or Workshop Item
Language:	English English
Published:	2016
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/14019/ http://umpir.ump.edu.my/id/eprint/14019/1/MRH_AiGEV2016_Full_Paper_UMPIR.pdf http://umpir.ump.edu.my/id/eprint/14019/7/fkm-2016-razali-Numerical%20Investigations%20on%20the%20Port%20Flow.pdf

id	ump-14019
recordtype	eprints
spelling	ump-140192018-02-06T07:25:37Z http://umpir.ump.edu.my/id/eprint/14019/ Numerical Investigations on the Port Flow Field of a Two-Stroke Poppet Valve Engine Mohd Razali, Hanipah Zamri, Mohamed TJ Mechanical engineering and machinery This paper describes the model and simulation results of port flow field investigations on a two-stroke poppet valve engine. Higher power to weight ratio has been the advantage of a two-stroke engine over the four-stroke engine. However, poor emissions have plagued two-stroke ported design which is the main design mass produced for small engines. By employing poppet valve configuration, the gas exchange performance, hence the emissions can be improved. In order to verify this, two-dimensional (2D) and three-dimensional models of the two-stroke poppet valve engine are developed to illustrate the port flow field with the proposed valve timings obtained from the one-dimensional numerical analysis. Several design changes on the cylinder are proposed and investigated through the simulation. Further insight into the fluid mechanics of the flow into the engine can be provided by examining the in-cylinder velocity flow fields. The 2D simulation results have shown that by having a shroud on the inlet valve, the short-circuiting can be minimised without any modification on the cylinder head. Further, the 3D simulation results have shown sufficient swirl occurs in the cylinder but the tumble flow is not apparent. 2016-08-03 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/14019/1/MRH_AiGEV2016_Full_Paper_UMPIR.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/14019/7/fkm-2016-razali-Numerical%20Investigations%20on%20the%20Port%20Flow.pdf Mohd Razali, Hanipah and Zamri, Mohamed (2016) Numerical Investigations on the Port Flow Field of a Two-Stroke Poppet Valve Engine. In: 2nd International Conference on Automotive Innovation Green Energy Vehicle (AiGEV 2016), 2-3 August 2016 , MAI, Cyberjaya, Malaysia. pp. 1-11.. (Unpublished)
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Mohd Razali, Hanipah Zamri, Mohamed Numerical Investigations on the Port Flow Field of a Two-Stroke Poppet Valve Engine
description	This paper describes the model and simulation results of port flow field investigations on a two-stroke poppet valve engine. Higher power to weight ratio has been the advantage of a two-stroke engine over the four-stroke engine. However, poor emissions have plagued two-stroke ported design which is the main design mass produced for small engines. By employing poppet valve configuration, the gas exchange performance, hence the emissions can be improved. In order to verify this, two-dimensional (2D) and three-dimensional models of the two-stroke poppet valve engine are developed to illustrate the port flow field with the proposed valve timings obtained from the one-dimensional numerical analysis. Several design changes on the cylinder are proposed and investigated through the simulation. Further insight into the fluid mechanics of the flow into the engine can be provided by examining the in-cylinder velocity flow fields. The 2D simulation results have shown that by having a shroud on the inlet valve, the short-circuiting can be minimised without any modification on the cylinder head. Further, the 3D simulation results have shown sufficient swirl occurs in the cylinder but the tumble flow is not apparent.
format	Conference or Workshop Item
author	Mohd Razali, Hanipah Zamri, Mohamed
author_facet	Mohd Razali, Hanipah Zamri, Mohamed
author_sort	Mohd Razali, Hanipah
title	Numerical Investigations on the Port Flow Field of a Two-Stroke Poppet Valve Engine
title_short	Numerical Investigations on the Port Flow Field of a Two-Stroke Poppet Valve Engine
title_full	Numerical Investigations on the Port Flow Field of a Two-Stroke Poppet Valve Engine
title_fullStr	Numerical Investigations on the Port Flow Field of a Two-Stroke Poppet Valve Engine
title_full_unstemmed	Numerical Investigations on the Port Flow Field of a Two-Stroke Poppet Valve Engine
title_sort	numerical investigations on the port flow field of a two-stroke poppet valve engine
publishDate	2016
url	http://umpir.ump.edu.my/id/eprint/14019/ http://umpir.ump.edu.my/id/eprint/14019/1/MRH_AiGEV2016_Full_Paper_UMPIR.pdf http://umpir.ump.edu.my/id/eprint/14019/7/fkm-2016-razali-Numerical%20Investigations%20on%20the%20Port%20Flow.pdf
first_indexed	2023-09-18T22:17:17Z
last_indexed	2023-09-18T22:17:17Z
_version_	1777415422060003328

Numerical Investigations on the Port Flow Field of a Two-Stroke Poppet Valve Engine

Similar Items