Computational fluid dynamic study on the tribological performance of dimple-textured surface fabricated using the turning process

Research output: Contribution to journalArticle

Abstract

Purpose: This study aims to simulate the influence of surface texturing produced via turning process toward pressure distribution and load capacity generation using computational fluid dynamics (CFD). Design/methodology/approach: The dimple geometry was obtained via turning process, to be used for future application on piston skirt surfaces. Two cases were studied: a preliminary study using single periodic dimple assuming linear dimple distribution and an application study using multiple periodic dimples to address actual dimple orientation following the turning process. Findings: For the first case, the dimple was proven to generate load capacity with regard to untextured surface, owing to the asymmetric pressure distribution. Increasing the Reynolds number, dimple width and dimple depth was found to increase load capacity. For the second case, although load capacity increases via surface texturing, the value was 97.4 per cent lower relative to the first case. This confirmed the importance of doing multiple dimple simulations for real applications to achieve more realistic and accurate results. Originality/value: A new concept of dimple fabrication using a low-cost turning process has been developed, with a potential to increase the tribological performance under hydrodynamic lubrication. Previous CFD simulations to simulate these benefits have been done using a single periodic dimple, assuming equal distribution array between dimples. However, due to the different orientations present for dimples produced using turning process, a single periodic dimple simulation may not be accurate, and instead, multiple dimple simulation is required. Therefore, present research was conducted to compare the results between these two cases and to ensure the accuracy of CFD simulation for this type of dimple.

Original languageEnglish
JournalIndustrial Lubrication and Tribology
DOIs
Publication statusPublished - 1 Jan 2019

Fingerprint

Computational fluid dynamics
Texturing
Pressure distribution
Computer simulation
Pistons
Lubrication
Reynolds number
Hydrodynamics
Fabrication
Geometry
Costs

Keywords

  • Computational fluid dynamics (CFD)
  • Hydrodynamic lubrication
  • Load capacity
  • Pressure distribution
  • Surface texturing

ASJC Scopus subject areas

  • Mechanical Engineering
  • Energy(all)
  • Surfaces, Coatings and Films

Cite this

@article{686fd083f22445fd8efa777588aec357,
title = "Computational fluid dynamic study on the tribological performance of dimple-textured surface fabricated using the turning process",
abstract = "Purpose: This study aims to simulate the influence of surface texturing produced via turning process toward pressure distribution and load capacity generation using computational fluid dynamics (CFD). Design/methodology/approach: The dimple geometry was obtained via turning process, to be used for future application on piston skirt surfaces. Two cases were studied: a preliminary study using single periodic dimple assuming linear dimple distribution and an application study using multiple periodic dimples to address actual dimple orientation following the turning process. Findings: For the first case, the dimple was proven to generate load capacity with regard to untextured surface, owing to the asymmetric pressure distribution. Increasing the Reynolds number, dimple width and dimple depth was found to increase load capacity. For the second case, although load capacity increases via surface texturing, the value was 97.4 per cent lower relative to the first case. This confirmed the importance of doing multiple dimple simulations for real applications to achieve more realistic and accurate results. Originality/value: A new concept of dimple fabrication using a low-cost turning process has been developed, with a potential to increase the tribological performance under hydrodynamic lubrication. Previous CFD simulations to simulate these benefits have been done using a single periodic dimple, assuming equal distribution array between dimples. However, due to the different orientations present for dimples produced using turning process, a single periodic dimple simulation may not be accurate, and instead, multiple dimple simulation is required. Therefore, present research was conducted to compare the results between these two cases and to ensure the accuracy of CFD simulation for this type of dimple.",
keywords = "Computational fluid dynamics (CFD), Hydrodynamic lubrication, Load capacity, Pressure distribution, Surface texturing",
author = "{Abdul Rahman}, Haniff and {A Ghani}, Jaharah and {Wan Mahmood}, {Wan Mohd Faizal} and {Mohammad Rasani}, {Mohammad Rasidi}",
year = "2019",
month = "1",
day = "1",
doi = "10.1108/ILT-05-2018-0211",
language = "English",
journal = "Industrial Lubrication and Tribology",
issn = "0036-8792",
publisher = "Emerald Group Publishing Ltd.",

}

TY - JOUR

T1 - Computational fluid dynamic study on the tribological performance of dimple-textured surface fabricated using the turning process

AU - Abdul Rahman, Haniff

AU - A Ghani, Jaharah

AU - Wan Mahmood, Wan Mohd Faizal

AU - Mohammad Rasani, Mohammad Rasidi

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Purpose: This study aims to simulate the influence of surface texturing produced via turning process toward pressure distribution and load capacity generation using computational fluid dynamics (CFD). Design/methodology/approach: The dimple geometry was obtained via turning process, to be used for future application on piston skirt surfaces. Two cases were studied: a preliminary study using single periodic dimple assuming linear dimple distribution and an application study using multiple periodic dimples to address actual dimple orientation following the turning process. Findings: For the first case, the dimple was proven to generate load capacity with regard to untextured surface, owing to the asymmetric pressure distribution. Increasing the Reynolds number, dimple width and dimple depth was found to increase load capacity. For the second case, although load capacity increases via surface texturing, the value was 97.4 per cent lower relative to the first case. This confirmed the importance of doing multiple dimple simulations for real applications to achieve more realistic and accurate results. Originality/value: A new concept of dimple fabrication using a low-cost turning process has been developed, with a potential to increase the tribological performance under hydrodynamic lubrication. Previous CFD simulations to simulate these benefits have been done using a single periodic dimple, assuming equal distribution array between dimples. However, due to the different orientations present for dimples produced using turning process, a single periodic dimple simulation may not be accurate, and instead, multiple dimple simulation is required. Therefore, present research was conducted to compare the results between these two cases and to ensure the accuracy of CFD simulation for this type of dimple.

AB - Purpose: This study aims to simulate the influence of surface texturing produced via turning process toward pressure distribution and load capacity generation using computational fluid dynamics (CFD). Design/methodology/approach: The dimple geometry was obtained via turning process, to be used for future application on piston skirt surfaces. Two cases were studied: a preliminary study using single periodic dimple assuming linear dimple distribution and an application study using multiple periodic dimples to address actual dimple orientation following the turning process. Findings: For the first case, the dimple was proven to generate load capacity with regard to untextured surface, owing to the asymmetric pressure distribution. Increasing the Reynolds number, dimple width and dimple depth was found to increase load capacity. For the second case, although load capacity increases via surface texturing, the value was 97.4 per cent lower relative to the first case. This confirmed the importance of doing multiple dimple simulations for real applications to achieve more realistic and accurate results. Originality/value: A new concept of dimple fabrication using a low-cost turning process has been developed, with a potential to increase the tribological performance under hydrodynamic lubrication. Previous CFD simulations to simulate these benefits have been done using a single periodic dimple, assuming equal distribution array between dimples. However, due to the different orientations present for dimples produced using turning process, a single periodic dimple simulation may not be accurate, and instead, multiple dimple simulation is required. Therefore, present research was conducted to compare the results between these two cases and to ensure the accuracy of CFD simulation for this type of dimple.

KW - Computational fluid dynamics (CFD)

KW - Hydrodynamic lubrication

KW - Load capacity

KW - Pressure distribution

KW - Surface texturing

UR - http://www.scopus.com/inward/record.url?scp=85064082415&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85064082415&partnerID=8YFLogxK

U2 - 10.1108/ILT-05-2018-0211

DO - 10.1108/ILT-05-2018-0211

M3 - Article

AN - SCOPUS:85064082415

JO - Industrial Lubrication and Tribology

JF - Industrial Lubrication and Tribology

SN - 0036-8792

ER -