Analysis of fluid-structure interaction in a directional permeability membrane in pressure-driven flow. (1st March 2023)

• Record Type: Journal Article
• Authors: Bayat, Hamid; Krueger, Paul S; Willis, David A
• Is Part Of: Engineering research express. Volume 5:Number 1(2023)
• Publication Date: 2023-03-01
• Subjects: permeable membrane -- directional membrane -- flexible membrane -- microcheck valve -- porous membrane -- fluid-structure interaction; Engineering -- Periodicals; 620.005
• DOI: 10.1088/2631-8695/acb6d0
• Languages: English
• ISSNs: 2631-8695

Abstract

Abstract: Finite volume and finite element analysis of fluid-structure interaction is performed to understand the behavior of a directional permeability membrane in pressure-driven flow. The membrane is comprised of two flexible porous sheets separated by a spacer. The porous sheets each have a different thickness with pores that are offset from each other. The design allows flow when the thicker sheet is on the high pressure side, but prevents flow if the pressure gradient is reversed. Flow through the membrane is studied for a pressure range of 0.01–0.1 m H2 O in forward flow to understand the complex fluid motion and dependence of membrane deformation on sheet thickness, downstream pore diameter, and initial gap between the sheets. In forward flow, maximum mass flow rate of 0.2 g s −1 (or flow rate of 12.024 ml min −1 ) can be obtained at 0.1 m H2 O pressure head. Reverse flow conditions are modeled to study the effect of design parameters on the required closing pressure, indicating that as little as 0.0325 m H2 O of pressure head is required for closing.