Analysis of mixed convective stagnation point flow of hybrid nanofluid over sheet with variable thermal conductivity and slip Conditions: A Model-Based study

International Journal of Heat and Fluid Flow, Год журнала: 2024, Номер 106, С. 109296 - 109296

Опубликована: Янв. 16, 2024

Язык: Английский

---

Enhanced thermal study in hybrid nanofluid flow in a channel motivated by graphene/Fe3O4 and Newtonian heating

Results in Engineering, Год журнала: 2024, Номер 21, С. 101772 - 101772

Опубликована: Янв. 17, 2024

The significance of advanced hybrid type nanofluids cannot be avoided because their multiple heat transport applications. These are not only in applied thermal, mechanical, chemical engineering but also use as coolant for nuclear reactors, paint, medical sciences and manufacturing various home products. dynamical study fluid characteristics inside a channel with slowly expanding/contracting walls is fascinating research topic. Therefore, the key aims this to formulate nanoliquid model using graphene Fe3O4 nanoparticles. Further, physical effects practical interest like Joule heating, magnetic field merged model. After that, numerical tool used solve it then demonstrated results via graphical aid. shown that when nanoparticles amount taken from 0.01 % 0.06 density changes 1.00042 1.00252 (nanofluid), 1.00067 1.00277 (hybrid) 1.00025 1.0015 (nano), 1.00125 1.0025 (hybrid). In similar way, thermal conductance boosted (nano) 1.00085 1.0021 For elongating (α=2.0,4.0,6.0,8.0), velocity increased examined maximum at center. absorber (S=0.1,0.2,0.3,0.4) highly controlled motion particles η=−1.0 η=1.0 accelerates inconsequentially. high energy dissipation, radiations (Rd=0.1,0.3,0.5,0.7) Re1=0.1,0.2,0.3,0.4 augmented temperature mechanism nano, simple fluids.

Язык: Английский

---

Investigation of unsteady nanofluid over half infinite domain under the action of parametric effects and EPNM

Journal of Thermal Analysis and Calorimetry, Год журнала: 2024, Номер unknown

Опубликована: Апрель 24, 2024

Язык: Английский

---

Numerical investigation of entropy generation of Joule heating in non-axisymmetric flow of hybrid nanofluid towards stretching surface

Journal of Computational Design and Engineering, Год журнала: 2024, Номер 11(2), С. 146 - 160

Опубликована: Март 6, 2024

Abstract The industrial sector has shown a growing interest in hybrid nanofluids affected by magnetohydrodynamics (MHD) owing to their wide range of applications, including photovoltaic water heaters and scraped surface heat exchangers. main purpose this study is look at how entropy created nanofluid ${\rm{A{{l}_2}{{O}_3}{-}Cu}}$ mixed with ${\rm{{{H}_2}O}}$ non-axisymmetric stagnation point flow Joule heating viscous dissipation. By using appropriate non-similarity transformations, the partial differential equations (PDEs) governing boundary layer region issue are transformed into set non-linear PDEs. BVP4c MATLAB program, which uses local additional truncation, may fix problem. velocity profiles both directions grow when values ${{\phi }_2},\ M,\lambda $, A parameters increase. temperature profile rises as $Ec$ lowers }_2}$ M obtained numerical findings demonstrate significant impacts on transfer rate fluid nanofluid. When concentration nanoparticles magnetic parameter heightened, there an enhancement seen skin friction coefficient decline rate. In addition, production shows increasing tendency function M,$ $Br,$ while demonstrating decreasing $\alpha $. Bejan number positive correlation $ but negative variables $Br$.

Язык: Английский

---

Numerical heat featuring in radiative convective ternary nanofluid under induced magnetic field and heat generating source

International Journal of Modern Physics B, Год журнала: 2024, Номер unknown

Опубликована: Апрель 3, 2024

The study of nanoliquid characteristics and their heat performance have attracted the interest engineers. These engineered fluids high thermal conductivity due to which such liquids are reliable for different engineering applications including heating/cooling buildings, mechanical engineering, etc. Therefore, current research design provides a new ternary model transport process under induced magnetic field effects, mixed convection, heating source radiations. modeling has been done by implementing fluid supportive transformations then results simulation; bvp4c is coded successfully. It scrutinized that higher inductive (0.1–0.4) nanoparticles amount (0.01–0.07) better resist movement while wedge parameter ([Formula: see text] promotes it. By promoting source, Eckert [Formula: text], transfer observed rapidly convective number controls Further, particular used examined found be good cooling purposes.

Язык: Английский

---

Significance of coupled effects of resistive heating and perpendicular magnetic field on heat transfer process of mixed convective flow of ternary nanofluid

Journal of Thermal Analysis and Calorimetry, Год журнала: 2023, Номер 149(2), С. 879 - 892

Опубликована: Дек. 2, 2023

Язык: Английский

---

Significance of radiated ternary nanofluid for thermal transport in stagnation point flow using thermal slip and dissipation function

Case Studies in Thermal Engineering, Год журнала: 2023, Номер 51, С. 103631 - 103631

Опубликована: Окт. 15, 2023

Investigation of heat transfer is a potential research area to acquire the targets in engineering and various industries. Although, conventional liquids are good for many such applications but their rate limited thus it essential study new fluids which meet requirements. Therefore, ternary nanofluid model acquired using enhanced thermal conductivity, electrical capacity, basic governing laws similarity transforms. The comprises motivational aspects slip, convective condition, radiative flux viscous dissipation predict parametric ranges excellent results. nanoparticles (Al2O3, CuO Cu) amount kept up 0.04. For results simulation, numerical technique based on shooting scheme implemented solved model. It scrutinized that induction aforementioned physical quantities significantly improved transport performance nanoliquid. These an sources preferred industrial applications. Further, higher B1 near surface boosted temperature with increasing range 0.1–0.4. at effectively slip (α1), radiation number (Rd) Biot (B1) 0.1,0.3,0.5,0.7.

Язык: Английский

---

Thermal performance of radiated annular extended surface using advanced nanomaterials influenced by various physical controlling parameters for nucleate boiling case

Case Studies in Thermal Engineering, Год журнала: 2023, Номер 51, С. 103524 - 103524

Опубликована: Сен. 23, 2023

The fins are extended surfaces around different objects to enhance their thermal transmission from the object surrounding environment. These significant for electronics cooling, car radiator, heat exchanging devices, compressors and electric motor etc. main concerns of this study analyze heating/cooling performance annular fin nucleate boiling case. In Pool boiling, occurs in absence bulk movement fluid. such situation, fluid remains stationery motion under natural convection. For outcomes, effects magnetic field, radiation, nanomaterials heating species added during modeling. Then, energy model second order is obtained analyzed via numerical scheme. results over domain interest revealed that environment can be enlarged by strengthening coefficient conductivity α2 range 0.1,0.3,0.5,0.7. concentration ϕ3 2% 8% dominantly boost performance; however, ϕ1 has weaker effects. Further, directed radiations (Rd = 0.1,0.3,0.5,0.7) rays control insertion source (Q1 0.2,0.4,0.6,0.8) one reliable way rate

Язык: Английский

---

Polymeric coatings for passive radiative cooling of PV modules in hot and humid weather: Design, optimization, and performance evaluation

Case Studies in Thermal Engineering, Год журнала: 2024, Номер 57, С. 104341 - 104341

Опубликована: Апрель 3, 2024

This article evaluates the utilization of Polyethylene terephthalate (PET) and Polydimethylsiloxane (PDMS) polymeric coatings for passive radiative cooling commercial photovoltaic (PV) modules. The methodology involves design film analysis their optical properties. A numerical model is developed to simulate thermal behavior PV system. Parametric explores influence atmospheric parameters, such as wind speed, solar radiation, and, relative humidity on panels. Adoption PDMS PET with 200 μm thickness increases transmissivity glass in band gap, maintains relatively higher emissivity first second windows bands, improves At low values shown be capable maintaining cell temperature at lower than ambient temperature. case study conducted nocturnal daytime modules shows potential integrated into under specific hot humid weather conditions Jeddah, KSA. Temperature reductions panel by about 10 °C below can accomplished summer nights using cooling. slightly up 1.15 1.35 PDMS.

Язык: Английский

---

Significance of shape factor on magnetohydrodynamic buoyancy thin film flow of nanofluid over inclined sheet with slip condition: Irreversibility analysis

Modern Physics Letters B, Год журнала: 2024, Номер unknown

Опубликована: Апрель 5, 2024

This work aims to examine the entropy production, heat transport, and dynamics of unsteady thin film magnetohydrodynamic (MHD) flow a nanofluid composed alumina (Al 2 O 3 ) water. The fluid is seen pass over an inclined sheet, taking into account effects buoyancy force, viscous dissipation, joule heating. system partial differential equations (PDEs) optimized under boundary layer assumptions. Appropriate transformations are used convert governing conditions dimensionless forms. Using MATLAB’s bvp4c code local non-similarity technique with up second-degree truncation, we can obtain findings enhanced model. effect multi-shape Al nanoparticles on flow, heat, entropy-generating features also investigated after calculated results have been successfully aligned published data. Mixed convection, nanoparticle volume percent, inclination angle, magnetic field intensity, mass suction, Eckert number, Biot number only few parameters whose graphically shown for selected values. As result, Nusselt skin friction coefficient may be calculated. profiles exhibit decreasing trend as values fraction ([Formula: see text]) [Formula: text] unsteadiness (A) increase toward mixed convection text]). On other hand, profile increases increasing suction parameter generation Bejan show upsurge Brinkman (Br) increase. Conversely, reduces in temperature difference increases.

Язык: Английский

---