Numerical fluid structure simulation analysis of temperature-dependent dynamic viscosity with a simplified deep drilling model

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dc.authoridOezkaya, Ekrem/0000-0002-4309-2238
dc.contributor.authorOzkaya, Ekrem
dc.date.accessioned2025-02-20T08:42:17Z
dc.date.available2025-02-20T08:42:17Z
dc.date.issued2024
dc.departmentTürk-Alman Üniversitesien_US
dc.description.abstractThis paper simulates the temperature-dependent dynamic viscosity of the cutting fluid's flow, thus analysing the approximated real behaviour in a simplified model. In order to take the heat transfer between the workpiece and the cutting fluid into account, the Finite Element Method (FEM) was bidirectionally coupled. A mathematical formula for determining the dynamic viscosity of the cutting fluid as a function of temperature was used for the temperature evolution. Simulations were performed using the standard k-omega-SST, k-omega-SST-SAS, and k-omega-SST-DES turbulence models for comparison. The results show that the influence of dynamic viscosity and temperature plays an important role and should therefore not be neglected in process simulations. For example, increasing the temperature from T = 25 degrees C to T = 150 degrees C reduced viscosity by 95%. The modelling approach presented here is suitable for future analysis simulations and can be applied not only to different drill geometries but also to numerous machining processes where dynamic viscosity plays an important role.
dc.description.sponsorshipGerman Research Foundation (DFG) [BI 498/80-2]; Scientific and Technological Research Council of Turkey (TUBITAK); Support Program for Scientific and Technological Research Projects-2232 [121C068]
dc.description.sponsorshipThis work was supported by by the German Research Foundation (DFG) [grant number BI 498/80-2] and the Scientific and Technological Research Council of Turkey (TUBITAK) and the Support Program for Scientific and Technological Research Projects-2232 [grant number 121C068].
dc.identifier.doi10.1080/02286203.2024.2414952
dc.identifier.issn0228-6203
dc.identifier.issn1925-7082
dc.identifier.scopus2-s2.0-85208019020
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1080/02286203.2024.2414952
dc.identifier.urihttps://hdl.handle.net/20.500.12846/1623
dc.identifier.wosWOS:001347723800001
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorOzkaya, Ekrem
dc.language.isoen
dc.publisherTaylor & Francis Inc
dc.relation.ispartofInternational Journal of Modelling and Simulation
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250220
dc.subjectCutting fluiden_US
dc.subjectmachiningen_US
dc.subjectboringen_US
dc.subjectdynamic viscosity modelling approachen_US
dc.subjectturbulence modelen_US
dc.titleNumerical fluid structure simulation analysis of temperature-dependent dynamic viscosity with a simplified deep drilling model
dc.typeArticle

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