Article
Engineering, Chemical
M. Veera Krishna
Summary: This study investigates the impacts of radiation-absorption, chemical reaction, Hall and ion-slip effects on unsteady MHD free convective laminar flow within a rotating frame. Analytical solutions for velocity, temperature, and concentration distributions are obtained, showing that the velocity decreases with certain parameters, while the temperature and concentration are influenced by different parameters.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Sehra, Sami Ul Haq, Syed Inayat Ali Shah, Kottakkaran Sooppy Nisar, Saeed Ullah Jan, Ilyas Khan
Summary: This research focuses on the heat and mass transfer analysis of an incompressible Newtonian viscous fluid over an infinite vertical plate, using the Laplace transform method to obtain exact analytical solutions and exploring the responses of different physical parameters.
SCIENTIFIC REPORTS
(2021)
Article
Thermodynamics
Nargis Khan, Kamel Al-Khaled, Anum Khan, Muhammad Sadiq Hashmi, Sami Ullah Khan, M. Ijaz Khan, Sumaira Qayyum
Summary: This study explores the combined effect of heat transfer and chemical reaction on flow through a porous channel, solving the resulting nonlinear ODEs using the Homotopy Analysis Method. The accuracy of the analytic solution is ensured through convergence checking. Influences of parameters on velocity, temperature, and concentration profiles are tested, revealing different effects under convection heating conditions.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Multidisciplinary Sciences
Shuguang Li, Kodi Raghunath, Ayman Alfaleh, Farhan Ali, A. Zaib, M. Ijaz Khan, Sayed M. M. ElDin, V. Puneeth
Summary: The impact of chemical reaction and activation energy is crucial in analyzing the fluid dynamics and thermal properties. The application of fluid flow is widely considered in various fields such as nuclear reactors, automobiles, manufacturing setups, and electronic appliances. In this study, the effects of activation energy and chemical reaction on the magnetohydrodynamic Darcy-Forchheimer squeezed Casson fluid flow through a porous material in a horizontal channel are investigated. Using similarity variables, partial differential equations are converted to ordinary differential equations. The numerical method using MATLAB is employed to solve the problems and obtain data on velocity field, thermal distribution, and concentration distribution. The results indicate that as the plates are brought closer, both the fluid velocity and temperature increase. Moreover, an increase in the Hartmann number leads to a decrease in fluid velocity due to the presence of strong Lorentz forces. The liquid's temperature and concentration increase due to Brownian motion. When both the Darcy-Forchheimer and activation energy parameters are increased, the velocity and concentration decrease.
SCIENTIFIC REPORTS
(2023)
Article
Mechanics
B. D. Shaw, C. L. Vang
Summary: The Nusselt number Nu for an isothermal fluid sphere in a Stokes flow was evaluated by solving the dimensionless convective-diffusive conservation equation asymptotically. The results showed that the asymptotic expression for Nu is valid only for small Peclet numbers, and an alternative asymptotic expression was developed for Peclet numbers of order unity.
Article
Engineering, Mechanical
Priyajit Mondal, T. R. Mahapatra
Summary: This study investigates the double diffusive, MHD, mixed convection flow of Al2O3-water nanofluid in a trapezoidal enclosure, considering various inclination angles and aspect ratios. The research focuses on entropy generation related to heat transfer and mass transfer, finding that lower Richardson numbers lead to reduced entropy generation.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Engineering, Multidisciplinary
Ahmad Shafique, Zaib Un Nisa, Muhammad Imran Asjad, Mudassar Nazar, Fahd Jarad
Summary: This research article addresses the diffusion-thermo effect in magnetohydrodynamics (MHD) flow of Jeffrey's fractional fluid past an exponentially accelerated vertical plate, utilizing the constant proportional Caputo (CPC) fractional derivative for the generalization of thermal and mass fluxes. The governing equations are solved semi-analytically by Laplace transform, and the physical aspects and effects of different parameters are discussed through graphical illustrations. The results show that the presence of Dufour effect increases the flow speed, and the fractional model with constant proportional derivative decays faster compared to the classical Caputo and Caputo fractional derivatives.
MATHEMATICAL PROBLEMS IN ENGINEERING
(2022)
Article
Engineering, Aerospace
Zhikun Sun, Zhiwei Shi, Xi Geng, Zheng Li, Qijie Sun
Summary: This paper investigates the dynamic heat and mass transfer process of charged particle clusters generated by Pulsed Surface Arc Discharge (PSAD) actuators. The clusters are composed of charged particles, and the thermal effect is the macroscopic manifestation of their thermal motion. The transfer mode of the plasma cluster changes from forced convection to natural convection, and the Richardson number varies in different stages. A model describing the dynamic heat and mass transfer of pulsed plasma clusters is constructed, and the results show that the clusters mainly conduct mass transfer through low-frequency modes and heat transfer through high-frequency modes.
AEROSPACE SCIENCE AND TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Abdallah Belghit, Khaoula Ghrissi, Nejib Hidouri
Summary: The study investigates the motion of humid air inside a solar still, explaining its role as a heat engine and the impact of irreversibilities on system performance. It is found that fluid friction is the major contributor to entropy generation, and that temperature and concentration gradients enhance irreversibility rates. System efficiency should be evaluated based on reversible and lost work fluxes.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2021)
Article
Environmental Sciences
Swathi Murthy, Cristian Picioreanu, Michael Kuehl
Summary: Reef building corals have complex structures to maximize photosynthesis while minimizing damage and stress. A multiphysics modeling approach was used to simulate the internal environment of corals, including light, temperature, and oxygen distribution. The model results were consistent with spatial measurements, providing insights into the effect of coral morphology and light scattering on the coral's internal environment.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Engineering, Aerospace
Khilap Singh, Alok Kumar Pandey, Manoj Kumar
Summary: The main theme of this research is to find numerical results of stagnation point flow of micropolar fluid over a porous stretchable surface accounting for physical effects of internal heat generation/absorption, melting heat transfer and chemical reaction using Keller-Box method. The study shows that heat and mass transfer rate decreases at the fluid-solid interface with increasing stretching parameter, and also decreases with an increasing internal heat source/sink parameter.
PROPULSION AND POWER RESEARCH
(2021)
Article
Physics, Multidisciplinary
K. Kaladhar, Ravi Mahla
Summary: Jeffrey fluid flow has extensive applications in various engineering fields, such as polymer industries and industrial fluids. This study investigates the entropy generation of Jeffrey fluid through natural convection Navier-slip flow in a vertical channel with an inclined magnetic field. The results demonstrate that the entropy generation number increases with the increase in magnetic parameter, angle of inclination, and Soret parameter.
EUROPEAN PHYSICAL JOURNAL PLUS
(2023)
Article
Thermodynamics
Zhaozhi Li, Senlin Wang, Yingjuan Shao, Wenqi Zhong
Summary: This study experimentally investigates the convective heat transfer of supercritical CO2 (sCO2) flowing upward and downward in a 10 mm diameter tube. The effects of heat flux, mass flux, pressure, and flow orientation on heat transfer were examined. The results show that a rising heat flux impairs heat transfer, an increase in mass flux enhances heat transfer, and an increase in pressure harms heat transfer. Downward flow exhibits better heat transfer performance compared to upward flow under the same conditions.
APPLIED THERMAL ENGINEERING
(2023)
Article
Thermodynamics
B. Nagaraja, B. J. Gireesha
Summary: The study focuses on the impact of exponential space-dependent heat source on Casson fluid flow with MHD over a curved stretching sheet, considering chemical reaction and convective heat and mass flux boundary conditions. By reducing the governing equations to ordinary differential equations using similarity transformations, the numerical technique of Runge-Kutta-Fehlberg method is employed for solution. The results show that curvature parameter influences velocity and concentration profiles positively, while temperature profile shows an inverse relation. Additionally, changes in Casson parameter significantly affect all flow profiles, and thermal and concentration Biot numbers impact temperature and concentration profiles, respectively.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Engineering, Chemical
Yifan Qin, Xiao Dong Chen, Aibing Yu, Jie Xiao
Summary: Mathematical modeling of mass transfer and absorption in the small intestine is challenging and requires a reliable and computationally efficient predictive model. This study derives an absorption model that considers the 3D intestinal inner wall structure and can be used in a 1D distributed model. Computational fluid dynamics simulations are used to quantify the mass-transfer coefficient. The model provides insights into the influence of intestinal morphology and motility on mass transfer and absorption.
Article
Engineering, Mechanical
Vasudeva Reddy Minnam Reddy, A. Sreevallabha Reddy, R. Suresh Babu, N. Sandeep
Summary: This study explores the impact of nanospray on the film flow of Casson and Sutterby nanofluids over a cylindrical surface. The findings suggest that the heat transmission rate of the Casson nanoliquid is higher than the Sutterby nanoliquid, indicating its potential value in heat transfer applications.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2023)
Article
Engineering, Mechanical
Hossam A. Nabwey, M. Girinath Reddy, B. K. Naveen Kumar, N. Sandeep
Summary: This study investigates the method of hydrogen energy storage by improving the heat transfer performance of PTSC. The study finds that thermal radiation with the combination of Oldroyd-B fluid can enhance the heat transmission rate of PTSC to a new level.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2023)
Article
Engineering, Mechanical
Niraj Rathore, N. Sandeep
Summary: Nanotechnology has great potential in biomedical applications, such as drug delivery, medical imaging, and tumor treatment. Graphene oxide and aluminium oxide nanoparticles show excellent properties in nano-drug delivery and cancer treatment. This theoretical study examines the heat transfer in blood flow through a stenotic artery using GO-Al2O3 nanoparticles. The results show that the Oldroyd-B model has better heat transmission rate and lower drug resistance compared to the Maxwell model.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2023)
Article
Physics, Multidisciplinary
Om Prakash, N. Sandeep, Ram Prakash Sharma, Pentyala Srinivasa Rao
Summary: This study investigates the impact of radiative heat transfer on unsteady hydromagnetic dusty nanofluid flow. The flow characteristics and heat transfer performance of water-based nanofluid with copper and silicon nanoparticles are modeled and analyzed. The results show that the heat transfer performance of silicon-water nanoliquid is better than copper-water nanoliquid.
WAVES IN RANDOM AND COMPLEX MEDIA
(2022)
Article
Physics, Multidisciplinary
Niraj Rathore, N. Sandeep
Summary: This study examines the behavior of two-dimensional magnetized hybrid blood flow through cosine-shaped stenosis arteries. Iron oxide and Cobalt ferrite nanoparticles are considered in the blood flow, and Maxwell and Jeffrey's models are used to compare flow and heat transmission results. The study finds that using a hybrid Ferrous nanoparticle composition with the Maxwell flow model significantly enhances heat transmission rate and can aid in drug regulation and nanosurgery of tumors.
WAVES IN RANDOM AND COMPLEX MEDIA
(2022)
Article
Thermodynamics
A. C. Venkata Ramudu, K. Anantha Kumar, V Sugunamma
Summary: This study aims to explore the impact of viscous dissipation stimulus on the steady convective magnetohydrodynamic shear thickening liquid stream across a vertically stretched sheet. The findings indicate that the velocity decreases and the temperature distribution increases when the Casson fluid parameter increases.
Article
Thermodynamics
P. Nanda, N. Sandeep, C. Sulochana, G. P. Ashwinkumar
Summary: The present article investigates the effects of radiative heat flux and Joule heating on the 3D magneto-flow of tangent hyperbolic mixed nanoliquid above a linear/nonlinear expandable surface. A hybrid nanofluid is prepared by suspending aluminum alloy nanoparticles AA7072 and AA7075 in methanol liquid. Nonlinear partial differential equations are transformed into ordinary differential equations using appropriate similarity conversions, and their solutions are obtained using the bvp5c MATLAB package. The study provides simultaneous results of radiative hydrodynamic flow under linear and nonlinear extending surface conditions, and the influence of various factors on the flow characteristics is demonstrated through plots. The thermal transport rate is found to be twice as high in the nonlinear extending case compared to the linear stretching case, with the presence of unique nanoparticles significantly enhancing the thermal transport mechanism of the non-Newtonian liquid.
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2023)
Article
Thermodynamics
Niraj Rathore, N. Sandeep
Summary: The application of silver and gold nanoparticles in antimicrobial and anticancer therapies is explored, and it is found that gold nanoparticles can effectively convert photons to heat to destroy cancer cells. The radiative heat distribution and heat transfer characteristics of blood-based Ag-Au hybrid nanofluid are investigated through experiments and numerical simulations.
NUMERICAL HEAT TRANSFER PART B-FUNDAMENTALS
(2023)
Article
Engineering, Mechanical
N. Sandeep, P. Nanda, G. P. Ashwinkumar
Summary: Numerical computations were used to investigate the effect of the Buongiorno slip mechanism and radiative heat on gyrotactic microorganisms in a nanofluid flow. The results show that the deposition of nanomaterials significantly affects the flow and heat transfer, particularly in the suction case.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2023)
Article
Thermodynamics
Hossam A. A. Nabwey, Vasudeva Reddy Minnam Reddy, R. Suresh Babu, N. Sandeep
Summary: Solar power is important for meeting energy needs in industry and households. The practical use of solar power is examined by improving the heat diffusion rate of conventional liquid. A hypothetical analysis is conducted for third-grade cylindrical film flow with consideration of MHD, radiation, Ohmic heating, and Cattaneo-Christov heat flux. Water is used as the base liquid with graphene oxide nanoparticles. An exact model is established and solved computationally through suitable comparisons. The use of a parabolic trough solar collector is directly incorporated in the flow model. Comparative analysis is performed on Xue and Maxwell nanomodels, highlighting the enhancement of nanofluid temperature and heat transmission rate.
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2023)
Article
Thermodynamics
Ashwinkumar G. Poojari, B. Ranjana, N. Sandeep, C. Sulochana
Summary: A computational analysis is performed to investigate the effect of magnetized force and radiative flux on the unsteady magnetofluid flow of ZnO + H2O nanoliquid on a variable thickness surface with convective edge constraints. The study aims to compare the thermal transfer performance of the Maxwell and Xue nanomodels. The results indicate that both the radiative flux and thermal Biot number significantly increase the Nusselt number, and the energy transport rate is 4% higher in the Maxwell nanomodel compared to the Xue nanomodel.
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2023)
Article
Thermodynamics
Jeevan Kumar, N. Sandeep
Summary: A numerical analysis is conducted to investigate the heat transport of the Sutterby hybrid nanofluid flow between two concentric cylinders. The research reveals that the thermal transmission rate of the hybrid nanofluid is superior to the base liquid. The flow and heat regions can be controlled by the drag force of the magnetic field.
NUMERICAL HEAT TRANSFER PART B-FUNDAMENTALS
(2023)
Article
Engineering, Mechanical
Niraj Rathore, N. Sandeep
Summary: The biomedical applications and antibacterial properties of graphene oxide (GO) nanoparticles help to treat tumors and improve drug delivery results. The addition of GO nanoparticles in blood flow enhances thermal performance, and it leads to changes in energy transmission during the process of blood passing through stenosis artery.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2023)
Article
Engineering, Mechanical
N. Jeevankumar, N. Sandeep
Summary: In this study, the heat diffusion in the cylindrical film stream of the second-grade cross nanofluid is examined numerically. Solid nanoparticles of AA7072 and AA7075 are submerged in water as the base liquid. The results show that the thermal diffusion rate of the AA7072-AA7075-water combination is more remarkable than the base liquid.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Vasudeva Reddy Minnam Reddy, M. Girinath Reddy, P. A. Dinesh, N. Sandeep
Summary: This study investigates the enhanced heat transfer of Parabolic Trough Solar Collector (PTSC) using thermic radiation, space-dependent heat source, and nanotechnological energy. The results show that water-based graphene oxide (GO) and alumina alloy (AA7075) mixture, as a hybrid nanoliquid, effectively enhances the thermal performance of PTSC.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
