Transient thermohydrodynamic of turbocharger thrust bearings with circumferential V-grooves.
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| Title: | Transient thermohydrodynamic of turbocharger thrust bearings with circumferential V-grooves. |
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| Authors: | Jeenkour, Puttha1 puttha@eng.buu.ac.th |
| Source: | International Journal of Automotive & Mechanical Engineering. Mar2026, Vol. 23 Issue 1, p13146-13160. 15p. |
| Subjects: | Thrust bearings, Temperature distribution, Reynolds equations, Finite difference method, Newton-Raphson method, Hydrodynamic lubrication |
| Abstract: | The primary objective of this paper is to numerically analyze the effect of circumferential V-grooves on the thermohydrodynamic performance of turbocharger thrust bearings, with a focus on lubricant temperature distribution and variation. To investigate the relationship between shaft speed and lubricant temperature, a thermohydrodynamic lubrication model was employed to obtain numerical results. The numerical methodology utilizes the finite difference method coupled with the Newton-Raphson scheme to solve the nonlinear modified Reynolds and energy equations concurrently. To ensure accuracy, steady-state numerical predictions of pressure and temperature distributions were validated against existing research. Subsequently, the numerical findings, focusing on oil pressure, friction, and oil temperature under varying shaft speeds, are thoroughly discussed. The numerical findings indicate that the implementation of grooved thrust bearings with a 5 μm clearance reduces the average lubricant temperature in the contact area by 14% at maximum operating speeds, while maintaining friction levels comparable to those of ungrooved counterparts. However, an excessive increase in groove width and depth adversely affects the bearing's load-carrying capacity and results in higher peak temperatures at the bearing plate edge, especially at widths and depths greater than 30 ?m. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Automotive & Mechanical Engineering is the property of Universiti Malaysia Pahang, Faculty of Mechanical Engineering and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 193881047 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Transient thermohydrodynamic of turbocharger thrust bearings with circumferential V-grooves. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Jeenkour%2C+Puttha%22">Jeenkour, Puttha</searchLink><relatesTo>1</relatesTo><i> puttha@eng.buu.ac.th</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Automotive+%26+Mechanical+Engineering%22">International Journal of Automotive & Mechanical Engineering</searchLink>. Mar2026, Vol. 23 Issue 1, p13146-13160. 15p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Thrust+bearings%22">Thrust bearings</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+distribution%22">Temperature distribution</searchLink><br /><searchLink fieldCode="DE" term="%22Reynolds+equations%22">Reynolds equations</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+difference+method%22">Finite difference method</searchLink><br /><searchLink fieldCode="DE" term="%22Newton-Raphson+method%22">Newton-Raphson method</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrodynamic+lubrication%22">Hydrodynamic lubrication</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The primary objective of this paper is to numerically analyze the effect of circumferential V-grooves on the thermohydrodynamic performance of turbocharger thrust bearings, with a focus on lubricant temperature distribution and variation. To investigate the relationship between shaft speed and lubricant temperature, a thermohydrodynamic lubrication model was employed to obtain numerical results. The numerical methodology utilizes the finite difference method coupled with the Newton-Raphson scheme to solve the nonlinear modified Reynolds and energy equations concurrently. To ensure accuracy, steady-state numerical predictions of pressure and temperature distributions were validated against existing research. Subsequently, the numerical findings, focusing on oil pressure, friction, and oil temperature under varying shaft speeds, are thoroughly discussed. The numerical findings indicate that the implementation of grooved thrust bearings with a 5 μm clearance reduces the average lubricant temperature in the contact area by 14% at maximum operating speeds, while maintaining friction levels comparable to those of ungrooved counterparts. However, an excessive increase in groove width and depth adversely affects the bearing's load-carrying capacity and results in higher peak temperatures at the bearing plate edge, especially at widths and depths greater than 30 ?m. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Automotive & Mechanical Engineering is the property of Universiti Malaysia Pahang, Faculty of Mechanical Engineering and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.15282/ijame.23.1.2026.1.0999 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 13146 Subjects: – SubjectFull: Thrust bearings Type: general – SubjectFull: Temperature distribution Type: general – SubjectFull: Reynolds equations Type: general – SubjectFull: Finite difference method Type: general – SubjectFull: Newton-Raphson method Type: general – SubjectFull: Hydrodynamic lubrication Type: general Titles: – TitleFull: Transient thermohydrodynamic of turbocharger thrust bearings with circumferential V-grooves. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Jeenkour, Puttha IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: Mar2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 22298649 Numbering: – Type: volume Value: 23 – Type: issue Value: 1 Titles: – TitleFull: International Journal of Automotive & Mechanical Engineering Type: main |
| ResultId | 1 |
