Soft hydraulics: from Newtonian to complex fluid flows through compliant conduits

IC Christov - Journal of Physics: Condensed Matter, 2021 - iopscience.iop.org
Microfluidic devices manufactured from soft polymeric materials have emerged as a
paradigm for cheap, disposable and easy-to-prototype fluidic platforms for integrating …

Pressure measurement methods in microchannels: advances and applications

F Shen, M Ai, Z Li, X Lu, Y Pang, Z Liu - Microfluidics and Nanofluidics, 2021 - Springer
With the continuous development of the lab-on-a-chip studies, pressure measurements in
microchannels have become the guarantee of the precise control and regulation of trace …

[HTML][HTML] Transient compressible flow in a compliant viscoelastic tube

V Anand, IC Christov - Physics of Fluids, 2020 - pubs.aip.org
Motivated by problems arising in the pneumatic actuation of controllers for micro-
electromechanical systems, labs-on-a-chip or biomimetic soft robots, and the study of …

Flows in fluid-walled conduits driven by Laplace pressure

F Nebuloni, PR Cook, EJ Walsh - Journal of Fluid Mechanics, 2023 - cambridge.org
In conventional microfluidic devices, fluids are often confined behind solid plastic walls that
restrict access and trap gas bubbles; in open microfluidics some solid walls are replaced by …

Peeling of linearly elastic sheets using complex fluids at low Reynolds numbers

A Venkatesh, V Anand, V Narsimhan - Journal of Non-Newtonian Fluid …, 2022 - Elsevier
We investigate the transient, fluid–structure interaction (FSI) of a non-Newtonian fluid
peeling two Hookean sheets at low Reynolds numbers (R e≪ 1). Two different non …

Flow rate-pressure drop relation for deformable channels via fluidic and elastic reciprocal theorems

E Boyko, HA Stone, IC Christov - Physical Review Fluids, 2022 - APS
Viscous flows through configurations manufactured or naturally assembled from soft
materials apply both pressure and shear stress at the solid-liquid interface, leading to …

Fluid structure-interaction in a deformable microchannel conveying a viscoelastic fluid

L Ramos-Arzola, O Bautista - Journal of Non-Newtonian Fluid Mechanics, 2021 - Elsevier
We theoretically analyze the interaction between a viscoelastic fluid flow, whose constitutive
equation is the simplified Phan–Thien–Tanner model, and a deformable slender shallow …

Reduced modelling and global instability of finite-Reynolds-number flow in compliant rectangular channels

X Wang, IC Christov - Journal of Fluid Mechanics, 2022 - cambridge.org
Experiments have shown that flow in compliant microchannels can become unstable at a
much lower Reynolds number than the corresponding flow in a rigid conduit. Therefore, it …

Intermittent air invasion in pervaporating compliant microchannels

L Keiser, P Marmottant, B Dollet - Journal of Fluid Mechanics, 2022 - cambridge.org
We explore air invasion in a dead-end compliant water-filled microchannel containing a
constriction. The phenomenon is driven by the pervaporation of the liquid present in the …

Unsteady fluid-structure interactions in a soft-walled microchannel: A one-dimensional lubrication model for finite Reynolds number

TC Inamdar, X Wang, IC Christov - Physical Review Fluids, 2020 - APS
We develop a one-dimensional model for the unsteady fluid-structure interaction (FSI)
between a soft-walled microchannel and viscous fluid flow within it. A beam equation, which …