Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/1541
Full metadata record
DC FieldValueLanguage
dc.contributor.authorDemirel, Gizem-
dc.contributor.authorAcar, Erdem-
dc.contributor.authorÇelebioğlu, Kutay-
dc.contributor.authorAradağ, Selin-
dc.date.accessioned2019-06-26T08:07:05Z-
dc.date.available2019-06-26T08:07:05Z-
dc.date.issued2017-07-13-
dc.identifier.citationDemirel, G., Acar, E., Celebioglu, K., & Aradag, S. (2017). CFD-driven surrogate-based multi-objective shape optimization of an elbow type draft tube. International Journal of Hydrogen Energy, 42(28), 17601-17610.en_US
dc.identifier.issn0360-3199-
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0360319917310066-
dc.identifier.urihttps://hdl.handle.net/20.500.11851/1541-
dc.description.abstractDraft tube is the part of Francis turbines which is used to both discharge water and recover kinetic energy at the exit of the runner. A design optimization study of an elbow type draft tube based on the combined use of Computational Fluid Dynamics (CFD), design of experiments, surrogate models and multi-objective optimization is presented in this study. The geometric variables that specify the shape of the draft tube are chosen as input variables for surrogate models and the pressure recovery factor and the head loss are selected as output responses. It is determined that, pressure recovery factor, which is the main performance parameter, can be increased by 4.3%, and head loss can be reduced by %20 compared to the initial CFD aided design. Pressure recovery factor, is represented with a second order polynomial regression model in terms of the geometrical parameters based on the optimization results. The verification of the model is also provided by comparison with CFD results for different draft tubes other than that are used in the development of the model. The model is verified using 30 different design points and it can predict the pressure recovery factor with an error of less than 8%. This model allows the fast and correct design and optimization of elbow type draft tubes, without the need for further CFD simulations. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipThe computations are performed using the computational cluster and computer infrastructure of TOBB ETU Hydro Energy Research Laboratory, financially supported by Turkish Ministry of Development. The first author was also financially supported by Turkish Scientific and Research Council (Tubitak) BIDEB program for her MS studies which is the subject of this article.-
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofInternational Journal Of Hydrogen Energyen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectFrancis turbineen_US
dc.subjectDraft tubeen_US
dc.subjectOptimizationen_US
dc.subjectPressure recovery factoren_US
dc.subjectMeta-modelen_US
dc.titleCFD-driven surrogate-based multi-objective shape optimization of an elbow type draft tubeen_US
dc.typeArticleen_US
dc.departmentFaculties, Faculty of Engineering, Department of Mechanical Engineeringen_US
dc.departmentFakülteler, Mühendislik Fakültesi, Makine Mühendisliği Bölümütr_TR
dc.identifier.volume42-
dc.identifier.issue28-
dc.identifier.startpage17601-
dc.identifier.endpage17610-
dc.authorid0000-0002-3661-5563-
dc.authorid0000-0002-2034-0008-
dc.identifier.wosWOS:000406726000006en_US
dc.identifier.scopus2-s2.0-85016420316en_US
dc.institutionauthorAcar, Erdem-
dc.institutionauthorAradağ, Selin-
dc.contributor.YOKid143688-
dc.contributor.YOKid143685-
dc.identifier.doi10.1016/j.ijhydene.2017.03.082-
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.relation.otherTurkish Ministry of Development; Turkish Scientific and Research Council (Tubitak) BIDEB programen_US
dc.identifier.scopusqualityQ1-
item.grantfulltextnone-
item.fulltextNo Fulltext-
item.languageiso639-1en-
item.cerifentitytypePublications-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypeArticle-
crisitem.author.dept02.7. Department of Mechanical Engineering-
crisitem.author.dept13. TOBB ETÜ HIDRO Water Turbine Design and Test Center-
Appears in Collections:Makine Mühendisliği Bölümü / Department of Mechanical Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
Show simple item record

CORE Recommender

SCOPUSTM   
Citations

8
checked on Sep 23, 2022

WEB OF SCIENCETM
Citations

10
checked on Sep 24, 2022

Page view(s)

34
checked on Dec 5, 2022

Google ScholarTM

Check

Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.