Article
Thermodynamics
Asma Tufail, Shams ul Islam, Shagufta Yasmeen, M. Saleem, Shafee Ahmad
Summary: This study investigated blood flow through a stenosed artery under the presence of inflammation. The governing equations, in dimensionless form, were solved using the finite element method. The results showed that the rate of heat transfer significantly affected the flow field in the presence of a magnetic field. The findings for inflamed stenosis are particularly important in the biomagnetic field and health sciences.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2023)
Article
Engineering, Chemical
Y. Rameshwar, G. Srinivas, D. Laroze
Summary: In this study, the double-diffusive oscillatory convection of a binary mixture (3He-4He) in a porous medium with stress-free boundary conditions was investigated using the Darcy model. The governing equations were solved using nonlinear analysis-based truncated Fourier series for the first time. The effects of Rayleigh number (R), separation ratio (?), Lewis number (Le), and porosity number (?) on the field variables were studied. Results showed that the local Nusselt number (NL) and total energy increased with R, and the deformation in the basic cylindrical rolls and flow rate were enhanced as well.
Article
Thermodynamics
A. Sukhanovskii, A. Evgrafova
Summary: The study shows that in developed convective flow, the boundary layer thickness is almost independent of the layer height, and is mainly defined by the applied temperature difference and physical properties of the fluid.
EXPERIMENTAL THERMAL AND FLUID SCIENCE
(2021)
Article
Thermodynamics
Gopal Chandra Pal, Govindarao Nammi, Sukumar Pati, Pitambar R. Randive, Laszlo Baranyi
Summary: This study investigates magnetohydrodynamic unsteady natural convection heat transfer inside an enclosure with two heated circular cylinders within it in the horizontal mid-plane. The results show a complex interaction between the imposed magnetic field, Rayleigh number, and Hartmann number, determining the heat transfer rate.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Mathematics
Khalil Ur Rehman, Wasfi Shatanawi, Andac Batur Colak
Summary: This study investigates the flow of a Casson fluid on an inclined, stretching cylindrical surface, taking into account various physical effects. The flow field is mathematically formulated and an artificial neural network model is used to predict the heat transfer coefficient. The results show that certain parameters enhance the heat transfer rate, while others have the opposite effect.
Article
Thermodynamics
Bismaya Ranjan Behera, Vikrant Chandrakar, Jnana Ranjan Senapati
Summary: A numerical investigation was conducted on a concave hemispherical surface to study the thermo-fluid characteristics due to laminar free convection. The Nusselt number was observed to increase with the Rayleigh number, with a more significant increase for higher Rayleigh number values and larger curvature radii. The study also established a Nusselt number relationship for the concave hemispherical surface accurate within +/- 6%.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Thermodynamics
Govindarao Nammi, Dhrijit Kumar Deka, Sukumar Pati, Laszlo Baranyi
Summary: This study investigates unsteady natural convection heat transfer within a square-shaped porous confinement with four heated cylinders, showing different heat transfer phenomena under different Darcy numbers and Rayleigh numbers. As the Rayleigh number increases, the temperature and flow fields in the enclosure lose symmetry under certain conditions.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Mechanics
Krishan Chand, Mukesh Sharma, Arnab Kr De
Summary: This numerical investigation delves into the impact of multiscale roughness on heat flux and near-wall dynamics in turbulent Rayleigh-Benard convection. Results show that the penetration of roughness peaks through the thermal boundary layer can be categorized into three regimes, with heat flux continuing to increase even when all peaks exceed the boundary layer. The formation of smaller multiple rolls due to the tall roughness favors better fluid mixing and enhances heat flux, demonstrating the significance of the study in understanding convective heat transfer processes.
Article
Thermodynamics
Sumit Kumar Mehta, Sukumar Pati, Laszlo Baranyi
Summary: In this study, the hydrothermal characteristics of laminar forced convective flow of water through different types of sinusoidal asymmetric wavy channels were investigated. The results showed that the average Nusselt number was almost independent of the channel geometry for lower Reynolds numbers and slopes. However, at higher Reynolds numbers, the average Nusselt number was highest for the linearly increasing amplitude channel, followed by the linearly decreasing amplitude channel and the constant amplitude channel. The study also evaluated the combined effects of heat transfer increase and associated pumping power in the wavy channel compared to the plane channel.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Nuclear Science & Technology
N. Sen, U. Madanan
Summary: A detailed review of the literature on high-Rayleigh-number thermal convection in inclined enclosures reveals that existing correlations for the Nusselt number are either specific to a certain inclination angle or do not consider all control parameters. This study proposes a set of empirical correlations to predict the Nusselt number in differentially-heated, tilted, rectangular enclosures of various aspect ratios and inclination angles, within a given range of Rayleigh numbers. The predicted Nusselt numbers show a mean absolute percentage error of approximately 5% compared to experimental results.
PROGRESS IN NUCLEAR ENERGY
(2023)
Article
Thermodynamics
Md. Shahneoug Shuvo, Maruf Md. Ikram, Mohammad Nasim Hasan, Sumon Saha
Summary: This study conducts a numerical analysis of the heat transfer characteristics in the conjugate flow of air in a thick-walled square chamber. The effects of heating conditions, wall thickness, and wall materials on the thermal performance are considered and visualized for the optimum condition.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Engineering, Multidisciplinary
Shahrouz Yousefzadeh, Mehdi Eskandari, Farnaz Montazerifar, Omid Ali Akbari, Faramarz Kahbandeh, Mohammad Khalili, Shaghayegh Baghaei
Summary: This study focused on the numerical simulation of natural convection of nanofluid flow within a semi-circular enclosure for cooling a silicon chip. The results showed that increasing the Rayleigh number led to stronger fluid vortexes and flow motion intensity. Higher attack angles resulted in intensified fluid circulation and better flow rotation. The highest heat transfer distribution occurred when the volume fraction of nanoparticles in the nanofluid was 6%.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Thermodynamics
Saddam Hossain Mullick, Debabrata DasGupta, Pranab Kumar Kundu
Summary: This paper numerically analyzes the thermal and fluid flow phenomena of air inside an enclosure with periodic heating/cooling of the bottom wall. The study reveals the influence of periodic heating/cooling on temperature variations and flow behaviors, and provides key insights for optimizing the design.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Thermodynamics
Aitor Amatriain, Corrado Gargiulo, Gonzalo Rubio
Summary: A multiscale model for open-cell foams has been developed for characterization of heat exchangers. It is applicable to a wide range of materials, cell sizes, and porosities. The model accurately predicts the thermal performance of macroscopic systems based on microscopic geometries and parameters.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Mechanics
Salaheddine Kaba, Abdelkhalek Cheddadi, Khalid Achoubir, Alami Semma
Summary: This paper numerically studies the heat transfer characteristics of a partially heated square cavity and investigates the effect of heating area size and applied temperature. The results show that the system can achieve maximum heat transfer under different conditions.
Article
Energy & Fuels
Damodara Priyanka, Tanmay Basak
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2018)
Article
Thermodynamics
Pratibha Biswal, Tanmay Basak
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2018)
Article
Thermodynamics
Debayan Das, Leo Lukose, Tanmay Basak
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2018)
Article
Thermodynamics
Pratibha Biswal, Tanmay Basak
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2018)
Article
Green & Sustainable Science & Technology
Debayan Das, Leo Lukose, Tanmay Basak
Article
Thermodynamics
Debayan Das, Leo Lukose, Tanmay Basak
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
(2019)
Article
Multidisciplinary Sciences
Debayan Das, Andrea Dsouza, Navjot Kaur, Shruti Soni, Bhushan J. Toley
SCIENTIFIC REPORTS
(2019)
Article
Computer Science, Interdisciplinary Applications
Debayan Das, P. K. Panigrahi
MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING
(2020)
Article
Thermodynamics
Debayan Das, P. K. Panigrahi
Summary: The study conducted thermal design and energy consumption analysis of a paper-based LAMP point-of-care device using CFD analysis for the first time. It was found that two discrete heating configurations with high horizontal clearance were effective in reducing energy consumption, and two portable AA batteries were sufficient for device operation. Overall, the research successfully demonstrated energy optimization and operational speed of the POC medical device through detailed thermal analysis.
APPLIED THERMAL ENGINEERING
(2021)
Article
Engineering, Chemical
Debayan Das, S. Namboodiri
Summary: This study focuses on rapid detection of E. coli via LAMP reaction on Whatman filter paper, demonstrating that Whatman filter paper is suitable for effective naked-eye detection and greater extent of LAMP reaction.
CHEMICAL ENGINEERING SCIENCE
(2021)
Article
Energy & Fuels
Shikhar Agarwal, Vansh Anand, Nitin D. Banker, Pratibha Biswal
Summary: This study focuses on the experimental investigation of air convection heating using solid-liquid phase change material (PCM) in a room prototype. The analysis includes temperature measurements, experimentation with different PCM carriers, and defining a new dimensionless temperature to compare the effect of PCM configurations on room air heating.
Article
Thermodynamics
Debayan Das, Leo Lukose, Tanmay Basak
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2018)
Review
Thermodynamics
Hafiz Muhammad Ali, Tauseef-ur Rehman, Muesluem Arici, Zafar Said, Benjamin Durakovic, Hayder I. Mohammed, Rajan Kumar, Manish K. Rathod, Ozge Buyukdagli, Mohamed Teggar
Summary: Thermal energy storage is becoming increasingly important due to the challenges posed by intermittent renewable energy and waste heat dissipation. This paper discusses the fundamentals and novel applications of thermal energy storage materials and presents a multi-criteria decision making approach to select suitable materials. Recent advancements include materials with enhanced thermal conductivity and multiple phase change temperatures, as well as the application of nanomaterials and shape-stabilized materials in thermal energy storage.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2024)
Review
Thermodynamics
Xuesong Li, Shangning Wang, Shangze Yang, Shuyi Qiu, Zhe Sun, David L. S. Hung, Min Xu
Summary: This review article summarizes recent advances in flash boiling atomization using experimental approaches. It discusses the gas-liquid characteristics and primary breakup of flash boiling sprays, the characteristics of flash boiling spray plumes, and practical issues in adopting flash boiling atomization. Practical applications of flash boiling atomization in combustors are also presented.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2024)
Review
Thermodynamics
Yusheng Zheng, Yunhong Che, Xiaosong Hu, Xin Sui, Daniel-Ioan Stroe, Remus Teodorescu
Summary: This paper provides a comprehensive review of temperature estimation techniques in battery systems, discussing potential metrics, different estimation methods, and their strengths and limitations in battery management. The challenges and future opportunities in battery thermal state monitoring are also identified and discussed.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2024)