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Stereoscopic particle image velocimetry measurements and proper orthogonal decomposition analysis of the in-cylinder flow of gasoline direct injection engine

Intake generated flows are known to have a fundamental influence on the combustion both in spark ignition (SI) and compression ignition engines. This study experimentally investigated the tumble flow structures inside a cylinder of gasoline direct injection (GDI) engine utilizing a stereoscopic time...

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Main Authors: El-Adawy, M., Heikal, M.R., Aziz, A.R.A.
Format: Article
Published: 2019
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059549908&doi=10.1115%2f1.4042068&partnerID=40&md5=2e55444f71d649c708d5bbf4dc2ce275
http://eprints.utp.edu.my/22106/
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spelling my.utp.eprints.221062019-07-08T07:15:26Z Stereoscopic particle image velocimetry measurements and proper orthogonal decomposition analysis of the in-cylinder flow of gasoline direct injection engine El-Adawy, M. Heikal, M.R. Aziz, A.R.A. Intake generated flows are known to have a fundamental influence on the combustion both in spark ignition (SI) and compression ignition engines. This study experimentally investigated the tumble flow structures inside a cylinder of gasoline direct injection (GDI) engine utilizing a stereoscopic time-resolved particle image velocimetry (PIV). The experiments were conducted in a GDI engine head for a number of fixed valve lifts and 150 mmH2O pressure difference across the intake valves. A tumble flow analysis was carried out considering different vertical tumble planes. In addition, the proper orthogonal decomposition (POD) identification technique was applied on the PIV data in order to spatially analyze the structures embedded in the instantaneous velocity data sets. The results showed that the flow was dominated by a strong tumble motion in the middle of cylinder at high valve lifts (8-10 mm). Moreover, it is worth pointing out that, because of the complexity of the flow at the high valve lifts, the flow energy was distributed over a higher number of POD modes. This was confirmed by the need of a higher number of POD modes needed to reconstruct the original velocity field to the same level of fidelity. Copyright © 2019 by ASME. 2019 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059549908&doi=10.1115%2f1.4042068&partnerID=40&md5=2e55444f71d649c708d5bbf4dc2ce275 El-Adawy, M. and Heikal, M.R. and Aziz, A.R.A. (2019) Stereoscopic particle image velocimetry measurements and proper orthogonal decomposition analysis of the in-cylinder flow of gasoline direct injection engine. Journal of Energy Resources Technology, Transactions of the ASME, 141 (4). http://eprints.utp.edu.my/22106/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description Intake generated flows are known to have a fundamental influence on the combustion both in spark ignition (SI) and compression ignition engines. This study experimentally investigated the tumble flow structures inside a cylinder of gasoline direct injection (GDI) engine utilizing a stereoscopic time-resolved particle image velocimetry (PIV). The experiments were conducted in a GDI engine head for a number of fixed valve lifts and 150 mmH2O pressure difference across the intake valves. A tumble flow analysis was carried out considering different vertical tumble planes. In addition, the proper orthogonal decomposition (POD) identification technique was applied on the PIV data in order to spatially analyze the structures embedded in the instantaneous velocity data sets. The results showed that the flow was dominated by a strong tumble motion in the middle of cylinder at high valve lifts (8-10 mm). Moreover, it is worth pointing out that, because of the complexity of the flow at the high valve lifts, the flow energy was distributed over a higher number of POD modes. This was confirmed by the need of a higher number of POD modes needed to reconstruct the original velocity field to the same level of fidelity. Copyright © 2019 by ASME.
format Article
author El-Adawy, M.
Heikal, M.R.
Aziz, A.R.A.
spellingShingle El-Adawy, M.
Heikal, M.R.
Aziz, A.R.A.
Stereoscopic particle image velocimetry measurements and proper orthogonal decomposition analysis of the in-cylinder flow of gasoline direct injection engine
author_facet El-Adawy, M.
Heikal, M.R.
Aziz, A.R.A.
author_sort El-Adawy, M.
title Stereoscopic particle image velocimetry measurements and proper orthogonal decomposition analysis of the in-cylinder flow of gasoline direct injection engine
title_short Stereoscopic particle image velocimetry measurements and proper orthogonal decomposition analysis of the in-cylinder flow of gasoline direct injection engine
title_full Stereoscopic particle image velocimetry measurements and proper orthogonal decomposition analysis of the in-cylinder flow of gasoline direct injection engine
title_fullStr Stereoscopic particle image velocimetry measurements and proper orthogonal decomposition analysis of the in-cylinder flow of gasoline direct injection engine
title_full_unstemmed Stereoscopic particle image velocimetry measurements and proper orthogonal decomposition analysis of the in-cylinder flow of gasoline direct injection engine
title_sort stereoscopic particle image velocimetry measurements and proper orthogonal decomposition analysis of the in-cylinder flow of gasoline direct injection engine
publishDate 2019
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059549908&doi=10.1115%2f1.4042068&partnerID=40&md5=2e55444f71d649c708d5bbf4dc2ce275
http://eprints.utp.edu.my/22106/
_version_ 1738656378934788096
score 13.211869

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