Multi-scale soft porous lubrication

Zenghao Zhu, Rungun Nathan, Qianhong Wu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This paper reports a comprehensive study of soft lubrication in a porous layer whose thickness ranges from 3.1 mm to 19.0 mm, using two experimental setups for different scales of porous media. We demonstrate that the lubrication theory for soft porous media (Feng and Weinbaum, J. Fluid Mech. 422, 282, 2000)is valid in describing the fluid pressurization, while the theory by Toll (Polym Eng Sci 38, 1337, 1998)is appropriate in predicting the solid phase lifting force. A new model is then developed for estimating the contribution of the fluid pressure to the total lift, which, along with extensive dimensional analysis, provides critical insights for the application of soft porous lubrication in industrial applications.

Original languageEnglish (US)
Pages (from-to)246-253
Number of pages8
JournalTribology International
Volume137
DOIs
StatePublished - Sep 1 2019

Fingerprint

lubrication
Lubrication
Fluids
Porous materials
fluid pressure
Pressurization
fluids
dimensional analysis
Industrial applications
solid phases
estimating

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Cite this

Zhu, Zenghao ; Nathan, Rungun ; Wu, Qianhong. / Multi-scale soft porous lubrication. In: Tribology International. 2019 ; Vol. 137. pp. 246-253.
@article{6af3e208937b4dcc94db4b215c0c24b2,
title = "Multi-scale soft porous lubrication",
abstract = "This paper reports a comprehensive study of soft lubrication in a porous layer whose thickness ranges from 3.1 mm to 19.0 mm, using two experimental setups for different scales of porous media. We demonstrate that the lubrication theory for soft porous media (Feng and Weinbaum, J. Fluid Mech. 422, 282, 2000)is valid in describing the fluid pressurization, while the theory by Toll (Polym Eng Sci 38, 1337, 1998)is appropriate in predicting the solid phase lifting force. A new model is then developed for estimating the contribution of the fluid pressure to the total lift, which, along with extensive dimensional analysis, provides critical insights for the application of soft porous lubrication in industrial applications.",
author = "Zenghao Zhu and Rungun Nathan and Qianhong Wu",
year = "2019",
month = "9",
day = "1",
doi = "10.1016/j.triboint.2019.05.003",
language = "English (US)",
volume = "137",
pages = "246--253",
journal = "Tribology International",
issn = "0301-679X",
publisher = "Elsevier Inc.",

}

Multi-scale soft porous lubrication. / Zhu, Zenghao; Nathan, Rungun; Wu, Qianhong.

In: Tribology International, Vol. 137, 01.09.2019, p. 246-253.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Multi-scale soft porous lubrication

AU - Zhu, Zenghao

AU - Nathan, Rungun

AU - Wu, Qianhong

PY - 2019/9/1

Y1 - 2019/9/1

N2 - This paper reports a comprehensive study of soft lubrication in a porous layer whose thickness ranges from 3.1 mm to 19.0 mm, using two experimental setups for different scales of porous media. We demonstrate that the lubrication theory for soft porous media (Feng and Weinbaum, J. Fluid Mech. 422, 282, 2000)is valid in describing the fluid pressurization, while the theory by Toll (Polym Eng Sci 38, 1337, 1998)is appropriate in predicting the solid phase lifting force. A new model is then developed for estimating the contribution of the fluid pressure to the total lift, which, along with extensive dimensional analysis, provides critical insights for the application of soft porous lubrication in industrial applications.

AB - This paper reports a comprehensive study of soft lubrication in a porous layer whose thickness ranges from 3.1 mm to 19.0 mm, using two experimental setups for different scales of porous media. We demonstrate that the lubrication theory for soft porous media (Feng and Weinbaum, J. Fluid Mech. 422, 282, 2000)is valid in describing the fluid pressurization, while the theory by Toll (Polym Eng Sci 38, 1337, 1998)is appropriate in predicting the solid phase lifting force. A new model is then developed for estimating the contribution of the fluid pressure to the total lift, which, along with extensive dimensional analysis, provides critical insights for the application of soft porous lubrication in industrial applications.

UR - http://www.scopus.com/inward/record.url?scp=85065425134&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85065425134&partnerID=8YFLogxK

U2 - 10.1016/j.triboint.2019.05.003

DO - 10.1016/j.triboint.2019.05.003

M3 - Article

AN - SCOPUS:85065425134

VL - 137

SP - 246

EP - 253

JO - Tribology International

JF - Tribology International

SN - 0301-679X

ER -