TY - JOUR
T1 - Theoretical and experimental study of transient squeezing flow in a highly porous film
AU - Lang, Ji
AU - Nathan, Rungun
AU - Wu, Qianhong
N1 - Funding Information:
This research was performed in partial fulfillment of the requirements for the Ph.D. degree from Villanova University by Ji Lang. Mr. Ji is supported by the National Science Foundation CBET Fluid Dynamics Program under Award #1511096 . The authors would like to thank Dr. Sridhal Santhanam for his assistance in the mathematic formulation and Mr. Bchara Sidnawi for his critical review of the paper.
Publisher Copyright:
© 2019 Elsevier Ltd
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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U2 - 10.1016/j.triboint.2019.02.046
DO - 10.1016/j.triboint.2019.02.046
M3 - Article
AN - SCOPUS:85062802881
SN - 0301-679X
VL - 135
SP - 259
EP - 268
JO - Tribology International
JF - Tribology International
ER -