Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems最新文献

{"title":"Thermal performance and flow dynamics of alumina-copper-titania/water nanofluid over a convectively heated moving surface","authors":"Umi Nadrah Hussein, Najiyah Safwa Khashi’ie, Nur Syahirah Wahid, Norihan Md Arifin, Ioan Pop","doi":"10.1177/23977914251387221","DOIUrl":"https://doi.org/10.1177/23977914251387221","url":null,"abstract":"The present work examines the steady boundary layer flow and convective heat transfer of a alumina-copper-titania/water ternary hybrid nanofluid over a moving surface with convective heating. This work is relevant to numerous industrial applications involving dynamic thermal systems such as rolling sheets, extrusion processes, and thermal regulation of moving components where the traditional nanofluids may not offer sufficient thermal performance. The governing partial differential equations incorporating convective boundary condition and surface suction effect are transformed using similarity variables and numerically solved using the Matlab’s bvp4c solver. Results reveal the existence of dual solutions for specific velocity ratios with the primary solution deemed physically stable based on boundary condition satisfaction. It is found that increasing suction intensifies the velocity gradient and enhances heat removal by thinning both momentum and thermal boundary layers. A higher nanoparticle volume fraction enhances fluid motion but leads to elevated temperatures due to increased thermal energy storage, reducing the local Nusselt number. Moreover, larger Biot numbers amplify the thermal boundary layer thickness, indicating stronger surface-fluid thermal coupling. The novelty of this work lies in the combined analysis of ternary hybrid nanoparticle effects, suction and convective heating over a moving surface; a configuration that has received minimal attention in previous literature. The findings provide new insights into optimizing heat transfer in advanced nanofluid-assisted thermal systems.","PeriodicalId":44789,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147889319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of magnetized slip flow of hybrid nanofluid past nonlinearly radiative sheet with Newtonian heating: Physics informed neural network simulation","authors":"Mohammed Imran, Shakil Mojumdar, MJ Uddin","doi":"10.1177/23977914251353307","DOIUrl":"https://doi.org/10.1177/23977914251353307","url":null,"abstract":"Magnetohydrodynamic slip flows of nanofluids have many industrial applications such as cooling of electronic devices, polymer extrusion, and biomedical engineering applications. Stimulated by these applications, the present paper investigates theoretically and numerically the external boundary layer flow of an electroconductive hybrid-nanofluid on a 2-D nonlinear-radiative sheet with Newtonian heating and Naiver slip effect at the sheet boundary. The physico-mathematical model is framed using a system of partial differential equations along with physically realistic boundary conditions (slip and Newtonian heating) which are then transformed into a set of similarity differential equations using coordinate transformations developed by group theory. The transformed equations are then solved by a sophisticated technique, physics informed neural network (PINN). PINNs are the class of deep learning algorithm designed to solve differential equations. PINNs offer a data driven approach that’s considered governing physical laws directly into the learning process. We have applied limited memory Broyden–Fletcher–Goldfarb–Shanno algorithm (L-BFGS) optimizer for learning process that updates the initial weights and biases. We also have applied to an L-BFGS optimizer for learning processes that update the initial weights and biases requirements. The mean square error for each case is the order of 10 –5 –10 –7 . The training loss values for PINN are gradually decreasing or somewhere fluctuating with the epoch number. To justify the precision of the method, present results are compared with the existing results and an excellent correlation is found. It is found that with the increase of Nr , Nusselt number increases by 0.3125% if we add Al 2 O 3 and Cu nanoparticle with H 2 O . Possible applications of the findings are magnetically guided drug delivery, electronic cooling systems, microscale bioreactors, and nanoparticle transport in medical diagnostics.","PeriodicalId":44789,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147907988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance of carbon nanotubes (CNTs) on the development of radiating hybrid nanofluid flow through an stretching cylinder","authors":"Subhalaxmi Dey, Surender Ontela, Pradyumna Kumar Pattnaik, Satyaranjan Mishra","doi":"10.1177/23977914231207947","DOIUrl":"https://doi.org/10.1177/23977914231207947","url":null,"abstract":"In various industries, one of the important aspects is the cooling processes for which the material exhibits its perfect shape and size. Intending to the aforementioned property the current investigation leads to carry out the features of the materialistic property of thermal radiation and the dissipative heat by incorporating these in the water-based hybrid nanofluid. The fluid past a stretching cylinder embedded with a permeable medium and the impact of the magnetic field, and thermal radiation are depicted in momentum and energy profiles. In addition to that, the role of the Hamilton-Crosser conductivity model for the behavior of various shapes of the carbon nanotube (CNT) nanoparticles with their volume concentration is also vital. The transformation of the dimensional form of the governing equations into the non-dimensional form is obtained with the use of proper transformation rules. Further, the proposed designed model is handled by employing the traditional shooting-based Runge-Kutta fourth-order technique. The significant properties of different components are deployed graphically and the validation with earlier study shows a good correlation. Moreover, the important characteristics of the outcomes are; the surface cooling, driven by increased thermal buoyancy, promotes fluid velocity while simultaneously influencing the curvature parameter and profile to slow down the accumulation of nanoparticles.","PeriodicalId":44789,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems","volume":" 992","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135185942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing compressive mechanical properties and water absorption of polycaprolactone/nano-hydroxyapatite composite scaffolds by 3D printing based on fused deposition modeling","authors":"Behnam Akhoundi, Yasser Taghipour Lahijani, Vahid Modanloo","doi":"10.1177/23977914231205639","DOIUrl":"https://doi.org/10.1177/23977914231205639","url":null,"abstract":"This research examines the mechanical properties and water absorption of polycaprolactone (PCL) scaffolds reinforced with nano-hydroxyapatite (N-HA) particles, printed using a 3D printer based on fused deposition modeling (FDM) technology. Fabricating this composite material aims to replicate a tissue similar to bone tissue. Biocompatible N-HA (50% by weight) was utilized to fortify the matrix phase and enhance the mechanical properties. The compression test results showed that the addition of N-HA augmented the compressive strength and modulus of the scaffolds (with a nominal porosity of 60% and a filling pattern of 0/60/120) by 240% and 150%, respectively. Moreover, the water absorption increased by 600%.","PeriodicalId":44789,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems","volume":"4 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135168771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effectiveness of silver-magnesium oxide-water hybrid nanofluid in Couette channel","authors":"Chandra Shekar Balla, Khasim Ali, Yendlapally Rajashekhar Reddy","doi":"10.1177/23977914231196379","DOIUrl":"https://doi.org/10.1177/23977914231196379","url":null,"abstract":"The present article numerically investigates the unsteady magnetohydrodynamic (MHD) Couette flow containing novel (Ag + MgO)-water hybrid nanofluid (HNF). The nanoparticles of silver (Ag) and magnesium oxide (MgO) are supplemented to base fluid water. The top wall is kept in uniform motion while the bottom wall of channel set stationary and stretchable. An external magnetic field is applied perpendicular to lower plate. The governed nonlinear partial differential equations (PDE) are solved employing finite difference method (FDM). The effects of hybrid nanofluid and nanofluid (NF) are compared for the significant parameters and presented graphically. The results illustrate that (Ag + MgO)-water HNF exhibits significant influence over Ag-water NF on velocity and temperature in the Couette channel.","PeriodicalId":44789,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems","volume":"2 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135512572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adsorption investigation of a composite of metal-organic framework and polyethylene oxide hydrogel","authors":"E. B. AttahDaniel, E. Dikio, N. Ayawei, D. Wankasi, F. Mtunzi, P. N. Diagboya","doi":"10.1177/23977914231195748","DOIUrl":"https://doi.org/10.1177/23977914231195748","url":null,"abstract":"Though adsorption techniques are eco-environmentally friendly, most lack the effectiveness of complete contaminant elimination leading to increasing concerns about the presence of aqueous contaminants on humans. Thus, synergistic combination of low adsorption capacity adsorbents may be an effective method to enhance their aqueous contaminant uptake. Sol-gel synthesized lanthanum-1,4-benzene dicarboxylate metal organic framework (LaBDC MOF) and polyethylene oxide (PEO) hydrogel were combined to prepare a synergistic composite adsorbent (PEO-LaBDC) for aqueous methylene blue (MB) adsorption. Major properties of the pristine LaBDC MOF and PEO hydrogel were expressed in the characterized composite indicating successful preparation. PEO-LaBDC composite MB removal rate of MB was at least twice as fast (60 min) to those of the pristine LaBDC MOF (120 min) and PEO hydrogel (125 min). The fitting of kinetics model was fractal in nature, and optimum adsorption was on the alkaline end of the pH spectrum for all adsorbents (pH = 12, 10, and 10, respectively). Comparatively, the composite exhibited a better adsorption performance of ≈177% higher than the pristine LaBDC MOF; buttressing the idea that synergistic combination of adsorbents in composites could enhance adsorption processes. Therefore, the PEO-LaBDC composite is a promising adsorbent for the remediation of aqueous MB.","PeriodicalId":44789,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems","volume":"18 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87221181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization and fuzzy model for evaluation of mechanical and tribological properties of Al-CNT-Si3N4 based nano and hybrid composites","authors":"R. Ambigai, S. Prabhu","doi":"10.1177/23977914231194233","DOIUrl":"https://doi.org/10.1177/23977914231194233","url":null,"abstract":"Silicon Nitride (Si3N4) has an extraordinary combination of high hardness, strength, toughness, and advanced properties like excellent wear and corrosion resistant, thermal shock resistance. Also, Carbon Nano Tube (CNT) has grasped interest among the researchers owing to its superior mechanical and thermal properties. Hence, the present study intents to fabricate Al matrix reinforced with Si3N4 nano particulate and Al matrix reinforced with CNT and Si3N4 particulate called hybrid composite via gravity casting route. The fabricated composites were tested for compression test, hardness and tribological test. The L9 orthogonal array was selected to conduct the tribological test in dry sliding conditions. Furthermore, SEM, an optical microscope, and image analysis tools were used to characterize the created composites. To determine the ideal operating conditions of the tribology test, analysis of variance was performed. The correlation between the input parameters and the wear rate, COF, was established using regression models. In order to predict the rate of wear with greater than 95% accuracy, a fuzzy model was developed based on the experimental data.","PeriodicalId":44789,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems","volume":"13 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79761823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structure and thermal behaviour of different concentration PEG loaded PVA nanofibers","authors":"Archana Nigrawal, N. Chand, Arun Kumar Sharma, F. Haque","doi":"10.1177/23977914231195757","DOIUrl":"https://doi.org/10.1177/23977914231195757","url":null,"abstract":"Poly vinyl alcohol (PVA) has established its credibility in the fields of filtration, biomedical and pharmaceutical areas. In this paper different concentration of poly (ethylene) glycol were added to PVA to prepare gel and its nano fibres. PEG is water soluble similar to PVA can give a uniform gel and a strong intermolecular bonding can be achieved by the addition of PEG in PVA. Fibres were prepared by having high wt.% of PEG loaded PVA nano fibres. Nano fibre mat having 0, 0.2,0.4 and 0.6 g PEG having low molecular weight was added in the 8.6 wt.% PVA solution and then fibres were prepared by using electro spinning technique. Nano fibres so prepared were characterised by SEM, XRD and DSC. SEM results reveal that increase of PEG concentration separated the nano fibres and increased the gap of the mesh size. SEM micro graphs depicts that produced nano fibres are homogenous in nature and there were no apparent gap between the PVA and PEG nano fibre. It may be explained that due to the high electric potential developed during the electro spinning process which helped the nano fibres to get stretched XRD patterns exhibited the crystal size increased on adding PEG in the PVA gel. Effect of PEG addition on Tm of PVA nano fibres has been determined by running their DSC scans. An additional peak of 158.13°C is observed for the sample having 0.4 g PEG. Melting temperature shifted from 215° C to 219°C due to increase in crystal size of PEG added PVA nano fibres.","PeriodicalId":44789,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems","volume":"1 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88572377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface and crack effects on longitudinal vibration of thick nanorods with various boundary conditions","authors":"H. Shokrollahi, R. Nazemnezhad","doi":"10.1177/23977914231193632","DOIUrl":"https://doi.org/10.1177/23977914231193632","url":null,"abstract":"Considering the effect of surface parameters and crack on the longitudinal vibration of nanorods is the aim of this study. The nanorod is assumed to be thick, and it is modeled based on Bishop theory of rods. In thick nanorods, the effects of the inertia of lateral motions and the shear stiffness are considered in the kinetic energy and the strain energy of the nanorod, respectively. In the present study, the crack is modeled as a linear spring in which its stiffness is related to the crack severity. The surface parameters considered are the surface Lamé constants, the surface density, and the surface stress. Considering all surface parameters causes inhomogeneity of governing equations and boundary conditions. After converting inhomogeneous equations to homogeneous ones, the resulted equations are solved numerically. All possible boundary conditions are introduced but only natural frequencies of nanorod with fixed-fixed and fixed-free are reported. In addition to considering the effect of type of boundary conditions on the natural frequencies, the effect of geometrical parameters like radius and length, and mode number is also considered. The results are presented for both thin and thick nanorods to compare the effect of various parameters especially surface parameters on longitudinal frequencies.","PeriodicalId":44789,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems","volume":"29 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85345119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The synthesis of cobalt nanoparticles by solution combustion synthesis method in a new reactor at low-temperature conditions","authors":"M. Barati, B. Khoshandam","doi":"10.1177/23977914231193629","DOIUrl":"https://doi.org/10.1177/23977914231193629","url":null,"abstract":"The novelty of the present paper was the construction of a new reactor to synthesize the cobalt nanoparticles (NPs) by solution combustion synthesis (SCS) method for reducing the processing temperature of cobalt production. To perform the SCS process, a reactor was designed and constructed and the synthesis process was performed using cobalt (II) nitrate-6-water as oxidizer along with glycine and urea as fuels. The effect of the molar ratio of glycine fuel to oxidizer and fuel type parameters on the purity of the products were examined. The XRD and FESEM analysis were used to characterize the obtained products. Based on FESEM analysis and the Scherrer equation, the mean size of all samples was under 100 nm and the reactor loaded with the glycine fuel provided the lowest particle sizes by around 14 nm and produced particles with better surface adhesion. It was found that the glycine fuel was determined the best fuel compared to urea because of producing temperatures near 400°C. Compared to traditional gas-solid reactions, the operating temperature of this process was under 400°C which was considerably lower than the operating temperature of gas-solid reactions occurred at temperatures higher than 800°C.","PeriodicalId":44789,"journal":{"name":"Proceedings of the Institution of Mechanical Engineers Part N-Journal of Nanomaterials Nanoengineering and Nanosystems","volume":"1 1","pages":""},"PeriodicalIF":6.0,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89269133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}