Development of an ultra-sensitive and flexible piezoresistive flow sensor using vertical graphene nanosheets

S Abolpour Moshizi, S Azadi, A Belford, A Razmjou… - Nano-Micro Letters, 2020 - Springer
This paper suggests development of a flexible, lightweight, and ultra-sensitive piezoresistive
flow sensor based on vertical graphene nanosheets (VGNs) with a mazelike structure. The …

Bifurcation phenomena in incompressible sudden expansion flows

D Drikakis - Physics of Fluids, 1997 - pubs.aip.org
A numerical study of laminar incompressible flows in symmetric plane sudden expansions
was carried out. Computations were performed for various Reynolds number and expansion …

Biomimetic ultraflexible piezoresistive flow sensor based on graphene nanosheets and PVA hydrogel

S Abolpour Moshizi, H Moradi, S Wu… - Advanced Materials …, 2022 - Wiley Online Library
Flow sensors play a critical role in monitoring flow parameters, including rate, velocity,
direction, and rotation frequency. In this paper, inspired by biological hair cells in the human …

Entry flows of Bingham plastics in expansions

E Mitsoulis, RR Huilgol - Journal of non-newtonian fluid mechanics, 2004 - Elsevier
Entry flows through abrupt expansions are studied numerically for Bingham plastics
exhibiting a yield stress. The Bingham constitutive equation is used with an appropriate …

Pressure drop coefficient of laminar Newtonian flow in axisymmetric sudden expansions

PJ Oliveira, FT Pinho - International journal of heat and fluid flow, 1997 - Elsevier
Laminar flow of a Newtonian fluid in an axisymmetric pipe expansion has been studied
numerically by means of the finite-volume approach. Predicted values of some of the overall …

Pressure losses in the laminar flow of shear-thinning power-law fluids across a sudden axisymmetric expansion

FT Pinho, PJ Oliveira, JP Miranda - International Journal of Heat and Fluid …, 2003 - Elsevier
A numerical investigation was carried out to study the laminar non-Newtonian flow through
an axisymmetric sudden expansion having a diameter ratio of 1 to 2.6. The fluids were …

A PIV study of the laminar axisymmetric sudden expansion flow

KJ Hammad, MV Ötügen, EB Arik - Experiments in fluids, 1999 - Springer
The laminar flow through an axisymmetric sudden expansion was investigated
experimentally using real-time digital particle image velocimetry. An expansion ratio …

Side wall effects on the structure of laminar flow over a plane-symmetric sudden expansion

TP Chiang, TWH Sheu, SK Wang - Computers & fluids, 2000 - Elsevier
Computational investigations have been performed in order to study the side-wall effect on a
fluid downstream of a channel expansion which is plane. The expansion ratio under …

A general correlation for the local loss coefficient in Newtonian axisymmetric sudden expansions

PJ Oliveira, FT Pinho, A Schulte - International journal of heat and fluid flow, 1998 - Elsevier
Results from numerical simulations and guidance from an approximated corrected-theory,
developed by,(Oliveira, PJ and Pinho, FT 1997. Pressure drop coefficient of laminar …

Bifurcation phenomena in viscoelastic flows through a symmetric 1: 4 expansion

GN Rocha, RJ Poole, PJ Oliveira - Journal of non-newtonian fluid …, 2007 - Elsevier
In this work we present an investigation of viscoelastic flow in a planar sudden expansion
with expansion ratio D/d= 4. We apply the modified FENE–CR constitutive model based on …