Theoretical and experimental study of transient squeezing flow in a highly porous film

Ji Lang; Rungun Nathan; Qianhong Wu

doi:10.1016/j.triboint.2019.02.046

Theoretical and experimental study of transient squeezing flow in a highly porous film

Ji Lang, Rungun Nathan, Qianhong Wu

Division of Engineering, Business & Computing (Berks)

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

We report a theoretical and experimental study for transient squeezing flow through a thin, highly porous structure, where the pressure response is governed by the local acceleration, the viscous effect and the Darcy force from the porous structure. It is predicted that the flow developed from an initial inviscid stage to a behavior attesting to the Brinkman equation. The transition is governed by the Brinkman number and the ratio of Reynolds number to Stroudhal number. An experimental study was performed, showing excellent agreement with the theory. The paper, revealing the important role of soft porous media for squeeze damping and lubrication, has significant potential in biomedical and industrial applications.

Original language	English (US)
Pages (from-to)	259-268
Number of pages	10
Journal	Tribology International
Volume	135
DOIs	https://doi.org/10.1016/j.triboint.2019.02.046
State	Published - Jul 2019

All Science Journal Classification (ASJC) codes

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

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abstract = "We report a theoretical and experimental study for transient squeezing flow through a thin, highly porous structure, where the pressure response is governed by the local acceleration, the viscous effect and the Darcy force from the porous structure. It is predicted that the flow developed from an initial inviscid stage to a behavior attesting to the Brinkman equation. The transition is governed by the Brinkman number and the ratio of Reynolds number to Stroudhal number. An experimental study was performed, showing excellent agreement with the theory. The paper, revealing the important role of soft porous media for squeeze damping and lubrication, has significant potential in biomedical and industrial applications.",

author = "Ji Lang and Rungun Nathan and Qianhong Wu",

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AU - Lang, Ji

AU - Nathan, Rungun

AU - Wu, Qianhong

PY - 2019/7

Y1 - 2019/7

N2 - We report a theoretical and experimental study for transient squeezing flow through a thin, highly porous structure, where the pressure response is governed by the local acceleration, the viscous effect and the Darcy force from the porous structure. It is predicted that the flow developed from an initial inviscid stage to a behavior attesting to the Brinkman equation. The transition is governed by the Brinkman number and the ratio of Reynolds number to Stroudhal number. An experimental study was performed, showing excellent agreement with the theory. The paper, revealing the important role of soft porous media for squeeze damping and lubrication, has significant potential in biomedical and industrial applications.

AB - We report a theoretical and experimental study for transient squeezing flow through a thin, highly porous structure, where the pressure response is governed by the local acceleration, the viscous effect and the Darcy force from the porous structure. It is predicted that the flow developed from an initial inviscid stage to a behavior attesting to the Brinkman equation. The transition is governed by the Brinkman number and the ratio of Reynolds number to Stroudhal number. An experimental study was performed, showing excellent agreement with the theory. The paper, revealing the important role of soft porous media for squeeze damping and lubrication, has significant potential in biomedical and industrial applications.

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VL - 135

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JO - Tribology International

JF - Tribology International

ER -

Theoretical and experimental study of transient squeezing flow in a highly porous film

Abstract

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