Article
Thermodynamics
J. Tibaut, T. Tibaut, J. Ravnik
Summary: This paper presents a numerical study of laminar mixed convection of a nanofluid in a pipe and compares the results with experimental measurements. The research found that the distribution of nanoparticle concentration has a significant impact on the temperature field in both the fluid and the pipe.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Thermodynamics
Yanjun Chen, Pingshan Luo, Deqiang He, Rui Ma
Summary: The study of the effect of electric field on the natural convective heat transfer enhancement mechanism of nanofluid revealed that electrophoretic force plays a significant role in the motion of nanoparticles, with simulation results in good agreement with experimental results. Additionally, the electric field forces reform the velocity and temperature fields generated by natural convection, improving the local thermal conductivities of nanofluid. The movement of nanoparticles and basefluid under electric field are inverse, contributing to the stability of nanoparticles in the basefluid.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Thermodynamics
Amin Kardgar
Summary: The study investigated conjugate heat transfer of natural convection and entropy generation of nanofluid in an inclined square cavity enclosure with an external magnetic field. The findings showed that increasing nanoparticle volume fraction, inclination angle, Ra number, and solid to fluid conductivity ratio could lead to different effects on heat transfer and entropy generation in the system. The study provides valuable insights into the behavior of nanofluid flow and heat transfer in the presence of an external magnetic field.
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
(2021)
Article
Thermodynamics
Mohammad Hemmat Esfe
Summary: In this study, natural heat transfer in a nanofluid cavity was investigated using a numerical method. Results showed that increasing the nanofluid volume fraction improved heat transfer, and as the Rayleigh number increased, the nanofluid flow became turbulent, leading to an increase in heat transfer efficiency. Additionally, the presence of porous media had a significant impact on the average Nu number, with increasing Rayleigh number drastically improving heat transfer efficiency.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Thermodynamics
Mehdi Khatamifar, Wenxian Lin, Liqiang Dong
Summary: Numerical investigation on the transient conjugate natural convection heat transfer in a differentially-heated cavity with a partition revealed that the thermal conductivity ratio of the partition only has a significant effect within the range of 0.1-10, becoming negligible for higher ratios. Additionally, the scaling relations developed for non-partitioned cavities were found to be applicable to partitioned cavities as well. The partition thickness was found to significantly affect heat transfer only when the thermal conductivity ratio is small.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Hameed K. Hamzah, Farooq H. Ali, M. Hatami, D. Jing, Mohammed Y. Jabbar
Summary: Numerical Galerkin Finite Element Method (GFEM) was used to study the conjugate heat-transfer of a rotating cylinder in Fe3O4-water nanofluid, showing significant effects of parameters such as nanoparticles volume fraction and Hartmann numbers on the heat transfer performance.
SCIENTIFIC REPORTS
(2021)
Article
Thermodynamics
Muhammad Ibrahim, Tareq Saeed, Ebrahem A. Algehyne, Abdallah S. Berrouk, Yu-Ming Chu
Summary: This numerical investigation compares the hydrothermal characteristics of free, mixed, and forced convection of water-copper nanofluid in a cavity using different methods. The study shows that the presence of nanoparticles, as well as various parameters such as phi, Ra, Ri, and Re, significantly affect the average Nusselt number of the nanofluid. Additionally, the artificial neural network (ANN) modeling reveals the different impacts of nanoparticle concentration on free and forced convection modes.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Mathematics
Nadezhda S. Bondareva, Mikhail A. Sheremet
Summary: Modern technologies in thermal power engineering enable the use of renewable energy sources for system design and construction. Passive systems based on phase-change materials are often used for energy accumulation and storage. In this study, a numerical analysis of heat transfer in a brick wall with different melting temperature materials is performed, considering natural convection and using a developed finite difference technique. The experiment investigates the heat transfer and exchange between the environment and the room under various external thermal conditions for a brick block filled with phase-change materials.
Article
Thermodynamics
Shantanu Dutta, Sukumar Pati, Laszlo Baranyi
Summary: The study shows that the average Nusselt number increases with the volume fraction of nanoparticles and decreases with the Hartmann number. In addition to the influence of fluid properties and external conditions, the geometric variation of the enclosure volume also plays a role in altering the heat transfer rate.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Thermodynamics
Khaled Al-Farhany, Kadhim K. Al-Chlaihawi, Mohamed F. Al-dawody, Nirmalendu Biswas, Ali J. Chamkha
Summary: This study numerically investigates the magnetohydrodynamic conjugate heat transfer characteristics of a ferrofluid-filled porous inclined enclosure, with a focus on the influence of parameters such as fins length, gap between fins, modified Rayleigh number, Darcy number, and Hartmann number on the average Nusselt number. The results suggest that the fins length and gap between fins play a significant role in heat transfer enhancement, while the modified Rayleigh number, Darcy number, and Hartmann number also have notable effects.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Editorial Material
Thermodynamics
Sumon Saha, Maruf M. Ikram
Summary: This comment addresses some questionable mathematical formulations and numerical results in a paper by Y. Varol, H. F. Oztop, A. Koca on the effects of inclination angle on conduction-natural convection in divided enclosures filled with different fluids. The analysis aims to compare and correct the findings presented in the mentioned paper.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Engineering, Multidisciplinary
Rowsanara Akhter, Mohammad Mokaddes Ali, M. A. Alim
Summary: This investigation explores the fluid flow and temperature behaviors, as well as entropy generation, of hybrid nanofluid in a partially heated cavity saturated by porous medium in the presence of an external magnetic field. The results show that the magnetic field strength, amount of hybrid nanoparticles, and cavity permeability have a significant influence on the fluid flow, temperature, and local entropy generation.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Thermodynamics
R. Siddharth, Shaik Subhani, Rajendran Senthil Kumar
Summary: The study investigates the flow and heat transfer characteristics of two hot circular bodies in a 2D simulation. By optimizing the geometry, maximum heat dissipation can be achieved. The positioning of the cylinders in the enclosure has a significant impact on heat transfer rate.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Engineering, Multidisciplinary
Muhammad Ibrahim, Mohamamd Mehdi Rashidi, Taghreed A. Assiri, Nudrat Aamir, Tareq Saeed, Vakkar Ali
Summary: The two-phase Lattice Boltzmann method was used to study the flow of nanofluids in a square cavity. The effect of a fin on the flow was assessed by changing its length in two different orientations.
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
(2023)
Article
Mechanics
Surabhi Nishad, Rama Bhargava, Ameeya Kumar Nayak, Bernhard Weigand
Summary: Energy flux analysis of power-law fluid is a novel contribution to recent developments in computational fluid dynamics. The study investigates the influence of double diffusive effect on unsteady two-dimensional flow inside a complex enclosure and proposes a method for optimizing heat transfer rate. By comparing the computational time and accuracy of the finite volume method and element-free Galerkin technique, the study obtains results such as streamlines, isotherms, isoconcentrations, average Nusselt number, Sherwood number, etc., and analyzes the impact of various parameters. In addition, the study employs a mesh-free approach, providing a new method for further analysis of elliptical/semi-elliptical structures.
Article
Thermodynamics
Endalkachew Getachew Ushachew, Mukesh Kumar Sharma, Mohammad Mehdi Rashidi
Summary: This study investigates the heat transfer enhancement in copper-water nanofluid in a diagonally vented rectangular enclosure under the influence of a static magnetic field. The effects of various parameters on flow and heat transfer were explored numerically. The study found that the size and location of the heated square block, nanoparticles volume fraction, and magnetic field intensity all play significant roles in determining the heat transfer characteristics within the enclosure.
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
(2021)
Article
Mathematics
Ali Shokri, Beny Neta, Mohammad Mehdizadeh Khalsaraei, Mohammad Mehdi Rashidi, Hamid Mohammad-Sedighi
Summary: This paper introduces a symmetric eight-step predictor method of 10th order for numerical integration of second-order ordinary differential equations. The method has variable coefficients and can serve as a predictor stage for other implicit schemes. Demonstrating singular P-stability and applying it to problems like the Mathieu equation, the method shows advantages in efficiency and consistency compared to other methods of the same order.
Article
Thermodynamics
Shayan Naseri Nia, Faranak Rabiei, M. M. Rashidi
Summary: This study utilized the Lattice Boltzmann method to numerically simulate the natural convection heat transfer of Cu-water nanofluid in an L-shaped enclosure with curved boundaries. The investigation found that the curved boundaries have effects on natural convection in different parameter ranges, with the top curved boundary causing a notable increase in Nusselt number values. The study also compared the results of curved L-shape models to rectangular L-shape models and validated the curved boundary LBM simulation with existing studies.
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
(2022)
Article
Chemistry, Multidisciplinary
M. M. Rashidi, M. Sadri, M. A. Sheremet
Summary: This study simulated the energy transference of a hybrid nanosuspension under the influence of a magnetic field, showing that the solid volume fraction of nanoparticles in the hybrid nanofluid has a significant impact on heat transfer efficiency. Proper selection of flow parameters like Richardson number and Hartmann number can enhance the heat transmission rate.
Article
Engineering, Multidisciplinary
M. A. Sheremet, M. M. Rashidi
Summary: This research simulated free convection of alumina nanoliquid to study the influences of energy transport and flow structures, finding that increasing the fins height and particles concentration can enhance heat removal from the heated source.
ALEXANDRIA ENGINEERING JOURNAL
(2021)
Article
Thermodynamics
M. Khoshvaght-Aliabadi, S. Deldar, A. Salimi, M. M. Rashidi
Summary: This study aims to improve the performance of a corrugated miniature heat sink by altering the cross-section size of the routes. The results indicate that converging and diverging routes cross-section can considerably affect both the flow and the heat transfer, with the hybrid models showing the best heat transfer performance.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Thermodynamics
M. Khoshvaght-Aliabadi, A. Abbaszadeh, M. M. Rashidi
Summary: This study compares the applications of co- and counter-current modes in wavy minichannel heat sinks, finding an increasing dependence of thermal and hydraulic characteristics on Reynolds number with increasing wave-amplitude and decreasing wave-length. The use of counter-current mode significantly improves temperature uniformity at the same pumping power.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2022)
Article
Chemistry, Physical
Avinash Alagumalai, Caiyan Qin, K. E. K. Vimal, Evgeny Solomin, Liu Yang, Ping Zhang, Todd Otanicar, Alibakhsh Kasaeian, Ali J. Chamkha, Mohmammad Mehdi Rashidi, Somchai Wongwises, Ho Seon Ahn, Zhao Lei, Tabassom Saboori, Omid Mahian
Summary: Despite significant efforts in the field of nanofluids over the past two decades, their widespread commercial application has been hindered by various controllable and uncontrollable barriers. Long-term stability issue is identified as the main driver in the effective implementation of nanofluids at commercial scale. Research in this direction may help address the most influential barriers to nanofluid market uptake.
Article
Pharmacology & Pharmacy
Ali Farnoud, Hesam Tofighian, Ingo Baumann, Andrew R. Martin, Mohammad M. Rashidi, Micheal P. Menden, Otmar Schmid
Summary: The study explores aerosol delivery with bi-directional pulsatile flow conditions for targeted drug delivery to the olfactory region using a computational fluid dynamics (CFD) model on patient-specific nasal geometry. The deposition efficiencies of drug in the nasal cavity and olfactory region are affected by both steady and pulsatile flow rates, with bi-directional delivery potentially improving the uniformity of drug deposition.
FRONTIERS IN PHARMACOLOGY
(2021)
Article
Engineering, Mechanical
M. M. Rashidi, M. Alhuyi Nazari, I Mahariq, N. Ali
Summary: In this paper, the thermal conductivity of nanofluids containing alumina nanoparticles is modeled using intelligent techniques. The results show that modeling with Multi-Layer Perceptron and Group Method of Data Handling has high prediction accuracy. Sensitivity analysis reveals that the thermal conductivity of the base fluid plays the most significant role in the thermal conductivity of the nanofluids.
EXPERIMENTAL TECHNIQUES
(2023)
Article
Physics, Multidisciplinary
R. P. Sharma, Om Prakash, I Rashidi, S. R. Mishra, P. S. Rao, F. Karimi
Summary: The study analyzes the free convection of electrically conducting nanofluid past a linearly permeable expanding surface, taking into account external heat source, nonlinear thermal radiation, and Joule heating. It is found that the magnetic field and suction slow down fluid movement, but higher electric field strength enhances the magnetic field strength and viscosity. Additionally, an increase in radiative heat and heat source leads to nanofluid temperature development, with the Nusselt number enhancing with the thermal radiation parameter.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Review
Engineering, Multidisciplinary
Khalid Almutairi, Mohammad Alhuyi Nazari, Mohamed Salem, Mohammad Mehdi Rashidi, Mamdouh El Haj Assad, Sanjeevikumar Padmanaban
Summary: This article reviews the applications of solar energy for preheating air and steam in thermal power plants, and discusses the effects on performance enhancement and fuel consumption reduction. Meanwhile, the application of thermal storage units can enhance system reliability and the contribution of solar energy.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Mechanics
Faranak Rabiei, Fatin Abd Hamid, Mohammad Mehdi Rashidi, Zeeshan Ali, Kamal Shah, Kamyar Hosseini, Touraj Khodadadi
Summary: In this research, a fourth-order Improved Runge-Kutta method with three stages is proposed for solving fuzzy Volterra integro-differential equations. The advantage of this method is that it uses fewer stages in each step, resulting in lower computational cost. The integral part is approximated using Lagrange interpolation polynomials and Simpson's rule. The efficiency of the method is demonstrated by comparing its numerical results with other existing methods.
JOURNAL OF APPLIED AND COMPUTATIONAL MECHANICS
(2023)
Article
Multidisciplinary Sciences
M. M. Rashidi, M. T. Akolade, M. M. Awad, A. O. Ajibade, I. Rashidi
Summary: This study analyzed the entropy generation rate as an additional enrichment to the rate of heat transfer in Casson nanofluid flow. The results showed that variable fluid properties downsized the fluid velocity and temperature fields but enriched the nanoparticle volume fraction. Moreover, thermal irreversibility controlled the flow system, while nanoparticle parameters and thermal diffusivity significantly contributed to system disorderliness.
JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE
(2021)
Article
Mathematics, Interdisciplinary Applications
Mohammad Mehdi Rashidi, Mikhail A. Sheremet, Maryam Sadri, Satyaranjan Mishra, Pradyumna Kumar Pattnaik, Faranak Rabiei, Saeid Abbasbandy, Hussein Sahihi, Esmaeel Erfani
Summary: This research compared various analytical and numerical methods for simulating 2D viscous flow, finding that OHAM and HAM are effective in controlling convergence of series but may encounter issues with large results. All methods have their own advantages and disadvantages, demonstrating remarkable accuracy compared to computational solutions.
MATHEMATICAL AND COMPUTATIONAL APPLICATIONS
(2021)
Article
Engineering, Mechanical
Rosaria Del Toro, Maria Laura De Bellis, Marcello Vasta, Andrea Bacigalupo
Summary: This article presents a multifield asymptotic homogenization scheme for analyzing Bloch wave propagation in non-standard thermoelastic periodic materials. The proposed method derives microscale field equations, solves recursive differential problems within the unit cell, establishes a down-scaling relation, and obtains average field equations. The effectiveness of this approach is validated by comparing dispersion curves with those from the Floquet-Bloch theory.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Yue Bao, Zhengcheng Yao, Yue Zhang, Xueman Hu, Xiandong Liu, Yingchun Shan, Tian He
Summary: This paper proposes a novel triple-gradient phononic acoustic black hole (ABH) beam that strategically manipulates multiple gradients to enhance its performance. The study reveals that the ABH effect is not solely brought about by the thickness gradient, but also extends to the power-law gradients in density and modulus. The synergistic development of three different gradient effects leads to more pronounced and broader bandgaps in PCs.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Matthias Ryser, Jason Steffen, Bekim Berisha, Markus Bambach
Summary: This study investigates the feasibility of replacing complex experiments with multiple simpler ones to determine the anisotropic yielding behavior of sheet metal. The results show that parameter identifiability and accuracy can be achieved by combining multiple specimen geometries and orientations, enhancing the understanding of the yield behavior.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Wenjun Li, Pengfei Zhang, Siyong Yang, Shenling Cai, Kai Feng
Summary: This study presents a novel two-dimensional non-contact platform based on Near-field Acoustic Levitation (NFAL), which can realize both one-dimensional and two-dimensional transportation. Numerical and experimental results prove the feasibility and ease of this method.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Shuo Liu, Lu Che, Guodong Fang, Jun Liang
Summary: This study presents a novel lamina conjugated bond-based peridynamic (BB-PD) model that overcomes the limitations of material properties and is applicable to composite laminates with different stacking sequences. The accuracy and applicability of the model are validated through simulations of elastic deformation and progressive damage behavior, providing an explanation of the damage modes and failure mechanisms of laminated composite materials subjected to uniaxial loading.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Omar El-Khatib, S. Kumar, Wesley J. Cantwell, Andreas Schiffer
Summary: Sandwich-structured honeycombs (SSHCs) are hierarchical structures with enhanced mass-specific properties. A model capable of predicting the elastic properties of hexagonal SSHCs is presented, showing superior in-plane elastic and shear moduli compared to traditional honeycombs, while the out-of-plane shear moduli are reduced.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Zhi-Jian Li, Hong-Liang Dai, Yuan Yao, Jing-Ling Liu
Summary: This paper proposes a process-performance prediction model for estimating the yield strength and ultimate tensile strength of metallic parts fabricated by powder bed fusion additive manufacturing. The effect of main process variables on the mechanical performance of printed metallic parts is analyzed and the results can serve as a guideline for improvement. The accuracy of the proposed model is validated by comparison with literature.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Saman A. Bapir, Kawa M. A. Manmi, Rostam K. Saeed, Abdolrahman Dadvand
Summary: This study numerically investigates the behavior of an ultrasonically driven gas bubble between two parallel rigid circular walls with a cylindrical micro-indentation in one wall. The primary objective is to determine the conditions that facilitate the removal of particulate contamination from the indentation using the bubble jet. The study found that the bubble jet can effectively remove contamination from the indentation for certain ranges of indentation diameter, but becomes less effective for larger indentation diameters.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
E. Polyzos, E. Vereroudakis, S. Malefaki, D. Vlassopoulos, D. Van Hemelrijck, L. Pyl
Summary: This research investigates the elastic and damage characteristics of individual composite beads used in 3D printed composites. A new analytical probabilistic progressive damage model (PPDM) is introduced to capture the elastic and damage attributes of these beads. Experimental results show strong agreement with the model in terms of elastic behavior and ultimate strength and strain.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
