Nano-Structures & Nano-Objects, Journal Year: 2024, Volume and Issue: 40, P. 101412 - 101412
Published: Nov. 23, 2024
Language: Английский
Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 57, P. 104317 - 104317
Published: March 29, 2024
This study explores the use of tetra-hybrid nanoparticles consisting gold, silver, alumina, and titania nanocomposites dispersed in a non-Newtonian Casson fluid modelled as blood. The motivation lies harnessing synergistic optical, electrical, thermal, physicochemical properties multimodal nanoscale assembly to advance electrokinetic pumping processes. aims computationally investigate complex transport assisted by tailored dioxide nanofluid, with potential applications targeted drug delivery, hyperthermia cancer treatment, Lab-on-Chip devices, miniaturized biosensors. constructed streaming flow model examines cumulative influence viscous heating, Joule conductive external laser irradiation. Current simulations examine flows integrated modelling two- three-dimensional conduits subject transverse magnetohydrodynamics localized solutions provide mathematical predictions physical insights into fully coupled velocity, temperature, concentration, pressure gradient contours. Additional plots examining dimensionless analytes against pertinent profiles, combined streamlined visualization, further elucidate multifaceted trapping patterns stemming from rheology. multiscale examination reveals performance improvements realizable leveraging biocompatible vital for next-generation biomedical technologies.
Language: Английский
Citations
24
Alexandria Engineering Journal, Journal Year: 2024, Volume and Issue: 92, P. 321 - 335
Published: March 8, 2024
Motile microorganisms play a central role in ecosystems both natural habitats and laboratory settings. Their contribution to nutrient cycling is crucial their impact on human health can be significant. Furthermore, they are promising various biotechnological applications. Ongoing studies of microbial motility represent dynamic evolving field research with profound implications for our understanding biology, ecology, environmental science. The thermal properties the base material extremely advanced enable wide range industrial, technical process applications due radiation, variable heat transfer activation energy. Researchers still working hard find renewable energy sources that economical environmentally friendly. In this regard, past decade has seen growing interest potential nanoparticles as sources. current study aimed learn more about rheological thixotropic nanofluids surface Riga surrounded by rotating bacteria. For this, theoretical investigations have been performed 3D magneto-hydrodynamic micropolar-based Casson nanofluid influence generation considered present scenario. rheology Brownian motion, micro rotation thermophoresis also accounted for. Classical equations motion form PDEs transformed into ODEs applying similarity variables. converted then solved help shooting algorithm using Bvp4c MATLAB software. From an engineering point view, impression physical flow parameters dimensionless profiles demonstrated graphically tables. outcomes show enhancing porosity parameter significantly reduces velocity while opposite behaviour noted viscoelastic parameter. Moreover, temperature concentration fields boosted exponents. Present results validated existing ones. improve stability achieved bioconvection nanomaterials.
Language: Английский
Citations
17
Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 59, P. 104453 - 104453
Published: May 1, 2024
The recent study concentrates on magnetohydrodynamics (MHD). Williamson fluid drifts over an exponentially extending sheet. porous medium is also crucial to improving thermal efficiency. flow pattern model considers the inspirations of Joule heating, heat generation, viscous dissipation, and radiation. This comprises activation energy, bio-convectional, gyrotactic microorganism phenomena. Furthermore, Brownian thermophoresis effects nanoparticles are taken into consideration. Using proper similarity transformation, PDEs impetus, temperature, concentricity, motility microbe density, boundary constraints upgrade a non-linearly ordinary differential equations (ODEs) mode. MATLAB, transformed non-dimensional ODEs dealt with using shooting procedures results significant physical strictures built-in bvp4c solver. Finally, it elaborated briefly explored numerically visually can find interesting versus velocity gradient, temperature solutal gradient species, microbes' gradient. Incorporating microorganisms fluids create novel materials tailored properties for diverse applications. However, it's consider stability, biocompatibility, environmental impact when designing these advanced systems.
Language: Английский
Citations
15
International Journal of Thermofluids, Journal Year: 2024, Volume and Issue: 23, P. 100773 - 100773
Published: July 27, 2024
This work deals with the study of mass and heat transmission in nanofluid flow Powell-Eyring model over a sheet that is exponentially stretched motile microorganisms. Additionally, viscous dissipation radiation sources are considered. The governing expressions remodeled into nonlinear ordinary differential equations by implementing appropriate transformations. numerically computed using bvp4c technique via MATLAB. various parameters used to investigate explain depth velocity, thermal, nanoparticle volume fraction, microbe density profiles. It noted velocity decreases enlarging values magnetic field parameter. fluid thermal profile develops for greater quantities thermophoresis Brownian motion parameters. concentration decays when Prandtl number Lewis increased. profiles suppress heightening Peclet number, bioconvection parameter leads decrease local skin friction, heat, transfer rates.
Language: Английский
Citations
15
Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 105125 - 105125
Published: Sept. 1, 2024
Language: Английский
Citations
14
The Canadian Journal of Chemical Engineering, Journal Year: 2024, Volume and Issue: 102(7), P. 2418 - 2431
Published: Feb. 14, 2024
Abstract This research delved into the effects of introducing multi‐walled carbon nanotubes (MWCNTs) and sodium dodecyl sulphate (SDS) crude oil with an anionic base, aiming to enhance its thermophysical attributes in EOR process. The investigation encompassed a range properties, including interfacial tension, viscosity, density, electrical conductivity, measured using LV rheometer spindle 18. Various ratios MWCNTs SDS were mixed evaluate their impacts. study uncovered that 1:1 ratio achieved noteworthy 10% reduction tension while minimally affecting showing promise for practical applications. Temperature had diverse on viscosity displaying fluctuating trends. highest observed result was substantial 190% increase at 40°C 2:1 ratio, whereas lowest slight −0.81% density change 60°C ratio. Additionally, consistently decreased over time all various temperatures, most significant reductions 40 60°C, particularly 1:2 ratios. Furthermore, adding led remarkable drop indicating decrease salt content within oil. However, it noted higher MWCNT concentrations might not be cost‐effective, emphasizing importance optimizing additive balance between performance economic viability. highlights potential tailored nanofluid formulations improve properties oil, potentially enhancing extraction refining processes.
Language: Английский
Citations
12
BioNanoScience, Journal Year: 2024, Volume and Issue: 14(3), P. 2419 - 2434
Published: July 17, 2024
Language: Английский
Citations
12
International Communications in Heat and Mass Transfer, Journal Year: 2024, Volume and Issue: 156, P. 107660 - 107660
Published: June 5, 2024
Language: Английский
Citations
11
Numerical Heat Transfer Part B Fundamentals, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 14
Published: Jan. 29, 2024
This article presents the modeling and simulations 3D magneto-hydrodynamic rotating nanofluid flow through a stretched surface. Water is employed as base liquid, multiwall carbon nanotubes (MWCNTs) are used nanosized materials. The unique structure of MWCNTs makes them stand out among crowd. principal concern to enhance thermal transport efficiency, chemical durability, important optical electronics properties. classical Navier Stoke's problem based upon law conservation mass, momentum energy with Xue model's implementation transformed into an ordinary differential equation by applying similarity approach. Velocity slip convective boundary conditions also considered under Lorentz force. final form nondimensional ODEs are, then, solved numerically using finite difference method assistance MATLAB's powerful software. impression pertinent convergence constraints on fluid velocity, temperature, heat transfer rate, friction factor exposed tables graphs. A numerical comparison evaluate code results show excellent agreement. effect Biot number appears be raising temperature. Conversely, increasing rotation parameter parametric values in declining trend velocity profile.
Language: Английский
Citations
10
Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 60, P. 104811 - 104811
Published: July 9, 2024
Microbial
eukaryotic
species
play
a
crucial
role
in
biomedical
research,
aiding
the
study
of
bacterial
impurities,
microorganism
pathogenesis,
and
development
tactics
to
combat
antimicrobial
struggle.
These
represent
complex
diverse
aspect
bacteriological
life,
influencing
ecosystems,
human
health,
technological
progress.
This
aims
create
comprehensive
computational
model
analyze
magnetohydrodynamics
non-Newtonian
micropolar
nanofluid
over
an
exponentially
stretchable
surface.
It
incorporates
Buongiorno
model,
which
considers
thermophoretic
diffusion
Brownian
motion
effects
thermal
behavior
nanofluids.
is
also
investigated
how
radiation
affects
current
model.
The
classical
Navier's
stokes
equations
motions
are
transform
into
system
ordinary
differential
equation
by
employing
similarity
approach.
Navier-Stokes
transformed
using
transformations,
MATLAB
used
solve
them
numerically.
Here
we
considered
three
different
cases,
(i)-injection
fw>0,
(ii)-impermeable
wall
fw=0,
(iii)-suction
fw<0
illustrated
visually.
consequence
various
flow
parameters
on
velocity,
temperature,
concentration,
motile
microorganism,
angular
profiles
graphically.
high
concordance
between
model's
results
available
data
validates
its
originality.
Present
indicate
that
while
larger
porosity
Hartman
number
decrease
increasing
mass
convective
factors
raises
velocity
profile.
Raising
magnetic
causes
temperature
profile
climb;
however,
raising
exponent
Prandtl
it
fall.
nanofluids
better
understood
thanks
this
could
have
applications
variety
industries
including
manufacturing,
energy,
electronics,
healthcare.
novelty
verified
has
already
been
published,
great
agreement
observed.
When
values
parameter
K
lies
ranges
0.2
Language: Английский
Citations