2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/168446By using the glassy (helium-)fluid model and boundary perturbation method, we can obtain the velocity fields (as well as the flow rate; up to the second order) inside the wavy-rough cylindrical nanopores which are of the same size as those samples prepared by Kim and Chan as well as Day {\it et al.} Our results show that the velocities measured in porous Vycor samples could be reproduced by carefully selecting relevant parameters but those in glass capillaries are difficult to obtain.2 figuresOther Condensed MatterDisordered Systems and Neural Networkstext