Experimental Interpretation of Interfacial Separation and Squeezing Pressure
C. Yang, B.N.J. Persson, J. Israelachvili, K. Rosenberg
TL;DR
This paper investigates the discrepancy between theoretical predictions and experimental results regarding the relationship between interfacial separation and squeezing pressure on rough surfaces, providing a detailed explanation for the observed slope difference.
Contribution
It offers a detailed analysis explaining why experimental slopes are slightly larger than theoretical predictions in interfacial separation versus squeezing pressure.
Findings
Experimental slope exceeds theoretical predictions
Logarithmic relation confirmed between separation and pressure
Detailed explanation for slope discrepancy provided
Abstract
The logarithmic relation between interfacial separation and squeezing pressure between randomly rough surfaces, has been predicted by both theory and experiment. However, the experimental slope between interfacial separation and logarithmic squeezing pressure, is slightly bigger than that predicted by theory. Here we present a detailed explanation on the slope difference between theory and experiment.
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Taxonomy
TopicsRheology and Fluid Dynamics Studies · Granular flow and fluidized beds · Fluid Dynamics and Mixing