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Article
Nuclear Science & Technology
Thongchai Botmart et al.
Summary: This paper proposes a method for solving the nonlinear MHTWF problem using the ANNs-LMB approach and provides corresponding sample statistics. The accuracy and precision of the obtained solutions are validated by comparing them with a reference data set. The capability and dependability of the method are evaluated using various indicators such as mean square error, error histograms, state transitions, correlation, and regression.
ANNALS OF NUCLEAR ENERGY
(2023)
Article
Mathematics, Interdisciplinary Applications
A. A. Avramenko et al.
Summary: The paper presents a low-dimensional model of bioconvective flow for gyrotactic microorganisms. The model enables determining boundaries of different flow regimes based on the Lorenz approach. Four criteria for the stability of bioconvective flows were identified in the form of Rayleigh numbers using analytical and numerical methods. The paper also analyzed the features of the dependences of the critical Rayleigh numbers on the Schmidt number and the parameter alpha 0.
CHAOS SOLITONS & FRACTALS
(2023)
Article
Materials Science, Multidisciplinary
Arpan Garg et al.
Summary: This paper presents a novel study on the stability of thermo-bioconvection due to gravitactic microorganisms into an anisotropic porous fluid layer saturated with Jeffrey liquid. The impact of various parameters such as mechanical anisotropy, thermal anisotropy, bioconvection Rayleigh-Darcy number, and microorganism concentration on the formation of bioconvection patterns and the size of convective cells is investigated. This study has potential applications in pharmaceutical, bio-mechanics, and microbial enhanced oil recovery (MEOR).
FORCES IN MECHANICS
(2023)
Article
Thermodynamics
Muhammad Azam et al.
Summary: The mechanism of heat and mass transport plays a significant role in various fields such as pharmaceutical procedures, nuclear reactor cooling, and energy technology. The study of nanofluids with swimming microorganisms has great significance in medicine and cancer therapy. This research focuses on the impact of melting phenomena and nonlinear chemical reactions on bioconvection flow of nanoliquid containing microorganisms and heat source/sink. A revised nanofluid model is used to measure heat and mass transport, and the results are compared with existing studies.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Thermodynamics
Junfeng Yin et al.
Summary: This study investigates the combined impacts of nonlinear thermal radiation and chemical reaction on bioconvection flow. The effects of variable thermal conductivity and non-uniform heat source/sink are also considered in the mathematical modeling. The analysis is theoretical and the model takes into account the influence of thermophoresis diffusion and Brownian motion. The study examines the effects of various flow parameters and discusses the behavior of physical factors such as surface drag coefficient, heat transfer rate, and density of the microorganisms.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Chemistry, Physical
Umair Khan et al.
Summary: Modern electronic equipment often faces thermal critical issues due to increased heat production or reduced surface area for heat dissipation. This study explores the solutions to these problems by improving the cooling system structure and heat transfer performance, with a focus on the use of nanofluids and the understanding of two-phase flow behavior.
Article
Chemistry, Physical
Soumitra Sarkar et al.
Summary: In this study, a mathematical model is formulated to describe the thermo-bioconvection of a nanofluid flow containing motile gyrotactic microorganisms. The effects of heat radiation, binary chemical reaction, and physical impacts such as porosity of porous media and Lorentz force are considered. The results provide insights into the transport profiles and microorganisms density, and can be valuable for various biotechnological and industrial applications.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Thermodynamics
A. K. Kushwaha et al.
Summary: This study examines the impact of vertical vibration on a shallow horizontal suspension of dilute oxytactic microorganisms heated from below. The findings suggest that high frequency and low amplitude vertical vibration can stabilize the suspension, while the absence of vertical vibration can destabilize it.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
T. S. Neethu et al.
Summary: This study investigates the dynamics of bioconvective MHD hybrid nanofluid flow over an exponentially stretching permeable surface, considering thermal radiation, heat generation, chemical reaction, porosity, and dissipative effects. The results show that an increase in the porosity parameter leads to an increase in temperature and a decrease in velocity. The temperature profile is proportional to the radiation parameter, magnetic field parameter, Eckert number, and volume fraction of TiO2 and Ag nanoparticles. The mass transfer rate and motile density number increase with higher values of the chemical reaction parameter.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Engineering, Multidisciplinary
Hassan Waqas et al.
Summary: The study focuses on the influence of bioconvection Carreau nanoliquid transport passing via a moving surface, exploring the major properties of the Lorentz force and the magnetic field. The governing PDEs system is transformed into ODEs and solved using the bvp4c technique in computational MATLAB, with findings represented by graphs and numerical data.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Thermodynamics
Amna Mariam et al.
Summary: This research investigates the impact of gyrotactic microorganisms on the transportation of nanofluid on an expanding cylindrical surface, focusing on heat and mass transfer. Numerical methods are used to handle the non-linear set of equations and the role of key parameters is discussed.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
H. B. Lanjwani et al.
Summary: The two-dimensional laminar boundary layer flow and heat characteristics of silver water based nanofluid with buoyancy effect over porous shrinking/stretching sheet have been investigated. Numerical investigation shows the existence of triple solutions within certain parameter ranges, and the stability analysis confirms the reliability of these solutions. The stable solutions indicate that skin friction decreases and enhances with increased suction and nanoparticles volume fractions, respectively.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2022)
Article
Physics, Multidisciplinary
Muhammad Salman Kausar et al.
Summary: Nanofluids are a new generation of fluids that improve the heat transfer capabilities of conventional fluids. However, current nanofluid models fail to describe fluids with certain microscopic characteristics. This study numerically investigates the laminar two-dimensional heat transfer flow of a micropolar nanofluid containing copper nanoparticles and water through a porous medium over a stretching sheet. The effects of parameters such as micro-rotation, boundary, and suction on velocity, angular velocity, and temperature are analyzed.
CHINESE JOURNAL OF PHYSICS
(2022)
Article
Physics, Multidisciplinary
U. S. Mahabaleshwar et al.
Summary: This article investigates the non-Newtonian MHD flow and heat transfer of copper-alumina/water hybrid nanofluid due to permeable stretching/shrinking surface with a full slip model. The system of nonlinear partial differential equations was transformed to a system of ordinary differential equations. The impact of various physical parameters on velocity and temperature distributions were discussed, and it was found that the temperature distribution and thermal boundary layer increase with the increase of certain parameters. Additionally, the velocities and temperatures of the nanofluid and hybrid nanofluid behave differently in stretching and shrinking cases. The findings have potential industrial and technological applications.
CHINESE JOURNAL OF PHYSICS
(2022)
Article
Mathematics, Applied
Adebowale Martins Obalalu et al.
Summary: This study focuses on the steady flow behavior of two-dimensional magnetohydrodynamic non-Newtonian fluid over a stretching/shrinking sheet in the presence of nanoparticles. The study incorporates the parameter of convective boundary-layer slip for the first time in this field and applies the Legendre-based collocation method for solving the governing dimensionless problem. The results suggest that adjusting the fluid model and parameters can create a cooling/heating mechanism, which is valuable for designing applications involving high-temperature nanomaterials processing operations.
COMPUTERS & MATHEMATICS WITH APPLICATIONS
(2022)
Article
Engineering, Aerospace
Noman Sarwar et al.
Summary: In this study, the slip flow of Casson nanofluid over a non-linear stretching sheet with an inclined magnetic field and radiative heat flux is investigated. Numerical solutions are obtained and graphs are plotted to analyze the effects of various parameters on temperature, micro-organism distribution, velocity, and volume fraction of nanoparticles. The study reveals the influence of thermophoresis, Brownian motion, and bio-convection on thermal transportation.
PROPULSION AND POWER RESEARCH
(2022)
Article
Mohammadreza Habibishandiz et al.
International Journal of Thermofluids
(2022)
Article
Thermodynamics
M. Waqas et al.
Summary: This study investigates the effect of adding magnetized micropolar and considering radiation aspect on micro-organisms density in nanoliquid. Through the configuration of stratified variables, it is found that different variables have different effects on dimensionless quantities.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
Hassan Waqas et al.
Summary: A literature review confirms that nanofluids have higher heat transmission efficiency than regular fluids. However, there are significant gaps in the current understanding of strategies for enhancing heat transfer with nanoparticles, requiring further investigation. This research examines the importance of thermal radiation effects and the role of heat source-sink in the presence of hybrid nanofluid on a stanching surface. Experimental and numerical analyses demonstrate the effective application of nanofluid in various heat transfer applications.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
Nazash Anjum et al.
Summary: The purpose of this study is to analyze the 2D flow of the modified Eyring Powell model under the influence of a magnetic field. The study considers aspects such as Brownian motion, thermophoresis diffusion, thermal radiation, and activation energy phenomenon. The phenomenon of bioconvection caused by the rotation of microbes is also considered. The effects of physical parameters are shown pictorially.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Thermodynamics
Irfan Saif Ud Din et al.
Summary: This study examined the impact of nonlinear heat radiation on the heat transmission evaluation of Carreau nanofluid and tangent hyperbolic nanofluid passing across a wedge with gyrotactic microorganisms, revealing differences in flow velocity and temperature behavior due to various factors such as viscous effects and thermophoresis. The skin friction factor for tangent hyperbolic nanofluid was found to be approximately half of that for Carreau nanofluid.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Engineering, Multidisciplinary
Hossam A. Nabwey et al.
Alexandria Engineering Journal
(2021)
