Article
Mathematics, Applied
Kerehalli Prasad, Srikantha B. Setty, Fateh Mebarek-Oudina, Hanumesh Vaidya, Rajashekhar Choudhari, Isaac Lare Animasaun
Summary: This study focuses on the analysis of mixed convective unsteady two-dimensional nanofluid flow, considering heat and mass transport, toward a stretchable rotating disk with suction/injection and joule heating. The effects of different parameters on the flow characteristics are illustrated graphically.
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
(2022)
Article
Thermodynamics
Showkat Ahmad Lone, Laila A. Al-Essa, Afrah Al Bossly, Fuad S. Alduais, Sayed M. Eldin, Anwar Saeed
Summary: Hybrid nanofluids have specific features suitable for various industrial and engineering applications. The existing model examines the flow of hybrid nanofluids at the stagnant point of a gyrating sphere using the concepts of boundary layer theory. The HAM technique is used to evaluate the current flow problem and significant findings include intensified heat transmission with an increase in radiation factor and nanoparticles volume fractions, decreased velocity distribution with an increase in the positive constant, and higher thermal distribution with an increase in radiation factor and temperature ratio factor.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Hassan Waqas, Umar Farooq, Rabia Naseem, Sajjad Hussain, Metib Alghamdi
Summary: This article examines the impacts of non-linear thermal radiations on nanoparticles in water-based hybrid nanofluid flowing over a rotating disk, specifically focusing on the types and applications of carbon nanotubes. The study also looks into the behavioral analysis of velocity components and heat transfer under different parameters, showing that factors such as magnetic parameter and temperature ratio can affect the velocity field and heat transfer.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Mathematics
Prabhugouda M. Patil, Hadapad F. Shankar, Mikhail A. Sheremet
Summary: This paper examines nonlinear mixed convection flow past a moving yawed cylinder, analyzing the impact of various nondimensional parameters on fluid flow characteristics through numerical results, including velocity, temperature, species concentration patterns, as well as different dimensionless numbers.
Article
Physics, Applied
Shuang-Shuang Zhou, M. Ijaz Khan, Sumaira Qayyum, B. C. Prasannakumara, R. Naveen Kumar, Sami Ullah Khan, R. J. Punith Gowda, Yu-Ming Chu
Summary: This study investigates the thermally developed bioconvection flow of Williamson nanoliquid over an inclined stretching cylinder, considering linear mixed convection and nonuniform heat source/sink. The activation energy and suspension of gyrotactic microorganisms are accounted for the bioconvection phenomenon. The results demonstrate that the fluid velocity decreases with the Williamson fluid parameter, while changes in the unsteadiness parameter and heat source parameter enhance the nanofluid temperature. The profile of motile microorganisms decreases with the bioconvection constant and bio-convection Lewis number.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2021)
Article
Thermodynamics
S. Mamatha Upadhya, R. L. V. Renuka Dev, C. S. K. Raju, Hafiz Muhammad Ali
Summary: The study analyzes the nonlinear convective flow and heat transfer characteristics between stationary nonporous and porous rotating disks utilizing graphene nanoparticles in a water and ethylene glycol base fluid. Numerical computations and appropriate transformations reveal the effects of improvements in temperature and heat generation variables on the flow characteristics.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Mechanics
Amit Kumar Pandey, Abhijit Das
Summary: This study investigates the flow and heat transfer problem over a stretchable disk, considering Cu and TiO2 nanoparticles suspended in water. Different shapes of nanoparticles and the influence of a horizontal magnetic field and solar radiation parameters are taken into account. The numerical results have significant engineering applications to fluid flows in rotating machineries.
EUROPEAN JOURNAL OF MECHANICS B-FLUIDS
(2023)
Article
Thermodynamics
Yang Zhang, Haitao Lin, Rishabh Chaturvedi, Pradeep Kumar Singh, Ibrahim B. Mansir, KePing Zhang, Javid Alhoee
Summary: Using natural phenomena like free convection and modern nanostructures called NEPCM can improve heat transfer in lid-driven problems. This study simulated mixed convection of ethylene glycol and NEPCM in a lid-driven cavity with a rotating cylinder to assess the influence of Grashof number, cylinder speed, and NEPCM concentration on heat transfer characteristics. The results showed that a 6% concentration of NEPCM increased the mean Nusselt number by 41.7%, while the cylinder speed increased it by 38.7%. Additionally, an optimum concentration of 4% was observed for a Grashof number of 104.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Editorial Material
Thermodynamics
Prakash S. S. Hiremath
Summary: This paper presents a critical review of a research paper on the transportation of hybrid nanoparticles in forced convective Darcy-Forchheimer flow. The review points out that the proposed similarity solutions and subsequent mathematical analysis are incorrect, leading to invalid conclusions.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Chemistry, Physical
R. J. Punith Gowda, R. Naveen Kumar, Ali Aldalbahi, Alibek Issakhov, B. C. Prasannakumara, Mohammad Rahimi-Gorji, Mostafizur Rahaman
Summary: The research examined the deposition of thermophoretic particles in the flow of hybrid nanofluid fuelled by rotating disk motion. The study converted estimated PDE's to ODEs with similarity transformations, solved by a numerical process, revealing changes in velocity, concentration, thermal profiles, and particle deposition behavior under different parameters. The results show that the movement speed of the disk and thermophoretic coefficient affect the rate of mass transfer.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
T. Hayat, Aqsa Bashir, Sohail A. Khan, A. Alsaedi
Summary: This paper discusses the cavitation and bubble dynamics in non-Newtonian fluids and applies them to the fields of bioengineering and biomedicine. The hydromagnetic flow of Reiner-Rivlin nanomaterial subject to a rotating disk is addressed. Graphical representations of velocity, temperature, and concentration are obtained, with emphasis on entropy generation.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Thermodynamics
M. Ijaz Khan
Summary: This research examines the effect of entropy generation through a non-linear radiative flow of viscous fluid of hybrid nanoparticles over a stretchable rotating disk. Various parameters such as mixed convection parameter, porosity parameter, velocities, thermal slips parameters, stretching parameter, non-linear radiation parameter, and Reynolds number are studied for their impact on radial and tangential velocity profiles, temperature profile, as well as entropy generation and heat transfer rates. The governing problem is numerically solved using bvp4c techniques.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Engineering, Multidisciplinary
Bilal Ali, Nidhish Kumar Mishra, Khadija Rafique, Sidra Jubair, Zafar Mahmood, Sayed M. Eldin
Summary: This study investigates the mixed convective stagnation-point flow of a Al2O3-Cu/H2O hybrid nanofluid towards a stretched disc with a convective boundary and zero mass flux condition, taking into account mass suction and viscous dissipation effects. The flow, heat, and mass transfer characteristics are analyzed using the Buongiorno model and the Devi and Devi model. The results show good agreement with previous studies, and the velocity and temperature profiles increase with nanoparticle volume fraction and mixed convection parameter.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Madhavarao Kulkarni
Summary: The present numerical analysis investigates the effect of mixed convection flow around a disk containing a hybrid nanofluid in aeronautical engineering, geophysics, and nuclear engineering. The study examines the impacts of various factors on the disk, such as surface suction/injection, slip effect, magnetohydrodynamic effect, and nanoparticle shape. The research findings indicate that the presence of hybrid nanoparticles significantly increases the heat transfer rate, and increasing the strength of the magnetic field slows down the flow of the hybrid nanofluid.
ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Mechanics
Scott Morgan, Christopher Davies, Christian Thomas
Summary: The study investigates the control of stationary convective instabilities in the rotating disk boundary layer by modulating the disk rotation rate periodically. The addition of a time-periodic modulation stabilizes the flow and raises the critical Reynolds number for the onset of instabilities. Energy analysis shows a reduction in Reynolds stress energy production and an increase in viscous dissipation across the boundary layer with the time-periodic modulation. Comparisons are made with other control techniques such as distributed surface roughness and compliant walls.
JOURNAL OF FLUID MECHANICS
(2021)
Article
Mathematics, Applied
Liaquat Ali Lund, Abderrahim Wakif, Zurni Omar, Ilyas Khan, Isaac Lare Animasaun
Summary: This report investigates the influence of thermal radiation and viscous dissipation on the motion of hybrid nanofluid over a moving surface. The study finds that thermal radiation parameter enhances heat transfer rate and increases temperature, and two solution branches are observed, with the upper branch being stable.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2023)
Article
Physics, Applied
S. U. Mamatha, R. L. V. Renuka Devi, N. Ameer Ahammad, Nehad Ali Shah, B. Madhusudhan Rao, C. S. K. Raju, M. Ijaz Khan, Kamel Guedri
Summary: This study analyzes the flow of a two-dimensional incompressible magneto-hydrodynamic fluid on a linear stretching sheet in the presence of suction or injection and convective boundary conditions. The flow governing equations are solved using a scaling group transformation method and shooting technique. The computational results are validated and the effects of different parameters on friction and mass transfer rate are investigated.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2023)
Article
Physics, Applied
S. Saravana Kumar, Vikrama R. Prasad, M. Sathish Kumar, S. U. Mamatha, C. S. K. Raju, K. Vijaya Bhaskar Raju
Summary: Over the past decade, heat transfer performance has become the primary concern for heat transfer practitioners in Engineering and manufacturing practices. This study examines the flow and thermal management of new heat transfer fluids, finding that the CNT+Graphene+Al2O3 hybrid nano fluid has a higher heat transfer rate compared to Paraffin wax+Sand+AA7072. The similarity with respect to Pr has a higher domination in heat transfer rate than similarity with respect to Pr.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2023)
Article
Physics, Applied
M. Dinesh Kumar, C. S. K. Raju
Summary: In recent decades, there has been a shift in focus towards investigating hybrid nanofluid flows due to increasing energy demands and applications. This study explores hydro-magnetic flow to investigate the effects of incompressible flow and heat transfer on a stretching surface with velocity and thermal slips. By using scaling similarity transformations and converting equations from dimensional to non-dimensional, the analysis examines how different non-dimensional parameters impact skin friction and Nusselt number transfer rate. Multilinear regression analysis is also conducted to explore the relationship between predictor variables and one criterion variable.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2023)
Article
Physics, Applied
S. Saravana Kumar, R. Vikrama Prasad, S. U. Mamatha, C. S. K. Raju, B. Madhusudhan Rao
Summary: This study analyzes the heat transfer performance of a heat pump and explores the flow and heat transfer characteristics of different types of nanofluids. The results show that nanofluids have higher heat transfer rates compared to ternary hybrid nanofluids.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2023)
Article
Thermodynamics
Gadamsetty Revathi, Srihari Avadapu, C. S. K. Raju, M. Jayachandra Babu, A. M. Zidan, Mohammed Kbiri Alaoui, Nehad Ali Shah, Jae Dong Chung
Summary: This research investigates the effects of Dufour and Soret parameters on the properties of hybrid nanofluid flow between two parallel plates with temperature dependent electrical conductivity. The heat transport process is studied using thermal radiation parameter and Eckert number. The equations are solved using the bvp4c solver in MATLAB. Multiple linear regression is employed to explain physical parameters of interest, including Sherwood number. The main findings suggest that the velocity decreases with increasing nanoparticle volume fraction parameter and the concentration profile decreases with increasing Soret parameter. It is also observed that the fluid temperature increases with increasing Dufour number.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
S. Mamatha Upadhya, C. S. K. Raju, K. Vajravelu, D. Guinovart-Sanjuan
Summary: This study numerically investigates the entropy generation in an inclined microchannel due to Casson-micropolar hybrid nanofluid flow. The effects of nanoparticles on the flow are considered. The results show that an increase in radiation decreases the fluid temperature at the center of the microchannel, and irreversibility dominates the heat transfer around the center.
JOURNAL OF NANOFLUIDS
(2023)
Article
Mathematics, Interdisciplinary Applications
Mohd Anul Haq, Ilyas Khan, Ahsan Ahmed, Sayed M. Eldin, Ali Alshehri, Nivin A. Ghamry
Summary: In this paper, a novel Deep Convolutional Neural Network for Brain Tumor (DCNNBT) is proposed for the detection and classification of brain tumors, emphasizing the importance of early diagnosis for effective treatment and improved patient survival rates.
FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY
(2023)
Article
Thermodynamics
M. Sreedhar Babu, G. Ravi Sankar, Venkata Ramana Velpula, Yu-Ming Chu, M. Ijaz Khan, C. S. K. Raju, Hala A. Hejazi, Basim M. Makhdoum, Sayed M. Eldin
Summary: The study focuses on the impact of variable fluid properties on nanofluid flow over a wedge, taking into account factors such as heat generation/absorption and chemical reaction. Numerical calculations were used to analyze the flow and the results showed that fluid temperature increases with variable viscosity and heat generation parameters, while wall stress decreases with increasing velocity slip.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Sathy Suresh, S. R. Shanthi, A. G. Madaki, M. Sathish Kumar, C. S. K. Raju
Summary: Adding diverse nanoparticles to the base fluid is a new technique to enhance the thermal performance of ordinary fluids. This study investigates the flow and heat transfer of nanofluids over a spinning disk with constant stretching speed, using Graphene as the nanoparticle and water as the base fluid. The governing equations are transformed using the Von Karman transformation and numerically solved using the boundary value problem solver (bvp5c). The results show differences between cases with and without magnetic field, indicating improved skin friction, local Nusselt number, radial and axial velocity, and reduced tangential velocity and thermal boundary layer thickness with increased stretching force constant.
JOURNAL OF NANOFLUIDS
(2023)
Article
Engineering, Multidisciplinary
K. M. Pavithra, B. N. Hanumagowda, S. V. K. Varma, N. Ameer Ahammad, C. S. K. Raju, S. Noeiaghdam
Summary: The effect of shape factors on heat and mass transfer flow in nanofluid and hybrid nanofluid is examined in this study. The Darcy and viscous dissipation effects are included, and the governing equations are solved using the regular perturbation technique. The significant result shows that heat transfer and fluid velocity are maximally enhanced in the hybrid nanofluid region with lamina-shaped nanoparticles. This study validates the findings through prior research.
RESULTS IN ENGINEERING
(2023)
Article
Mathematics, Interdisciplinary Applications
Ghulam Bary, Waqar Ahmed, Riaz Ahmad, Abha Singh, Sayed M. Eldin, Duohui Huang, Ilyas Khan
Summary: In this paper, the dynamics of quantum correlations in an isolated physical quantum influenced by intrinsic coherence are explored. The amount of coherent-chaotic fractions and specific correlations in the hybrid system are characterized using the granular model and spherical droplets. The effect of coherence on the evolution of these correlations in engineering applications is examined, and the behavior of multiparticle correlations in relation to system parameters and coherence rate is analyzed in detail. The study found that correlations with genuine interferences exhibit slight asymmetry and that genuine correlations are more meaningful than primary interference. Furthermore, the robustness of quantum correlations can be modulated by adjusting coherent rate, source physical properties, and initial conditions.
FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY
(2023)
Article
Engineering, Multidisciplinary
M. Dinesh Kumar, N. Ameer Ahammad, C. S. K. Raju, Se-Jin Yook, Nehad Ali Shah, Sayed M. Tag
Summary: The influence of boundary layer flow on porous wedge nanofluids, hybrid nanofluids, and ternary hybrid nanofluids is studied in the presence of a consistent transverse magnetic field and heat radiation. Different cases involving water as the base fluid and various combinations of nanofluids are considered. The approximate relationships between temperature, velocity, rate of heat transfer, and shear stress at the wedge are visualized for different parameter values. The study shows that ternary hybrid nanofluids have higher Nusselt number transfer rate and hybrid nanofluids have higher skin friction rate compared to nanofluids. The optimization conditions based on the key factors are found using the RSM method.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Mathematics, Applied
T. Mahesh Kumar, Nehad Ali Shah, V. Nagendramma, P. Durgaprasad, Narsu Sivakumar, B. Madhusudhana Rao, C. S. K. Raju, Se-Jin Yook
Summary: This study investigates the flow of an incompressible fluid over a linear stretching surface with momentum and thermal slip conditions, considering both the presence and absence of a magnetic field. The governing equations are transformed to reveal absolute invariants and boundary conditions are mathematically elucidated. The results show that the momentum slip parameter decreases the friction coefficient in the presence of a magnetic field and increases it in the absence of a magnetic field. The thermal slip parameter increases the Nusselt number in both cases. The thermal and concentration buoyancy ratio parameters increase the friction factor, Nusselt number, and Sherwood numbers in both cases.
Article
Mechanics
C. S. K. Raju, Kiran Sajjan, Se-Jin Yook
Summary: This study explores the use of improved thermal characteristics in nanofluids for heat transmission by combining ternary nanoparticles of different shapes. It investigates the effect of different fin shapes on heat transmission, and discovers that the presence of a ternary hybrid nanofluid enhances the effectiveness of the fins.