Imran Abbasi , Amjad Ali Pasha , Muhammad Naeem , Mohamed H. Ahmed , Naveed Ahmed , Faisal J. Alzahrani , Mehboob Ali , Waqar Azeem Khan
{"title":"Role of hyper-heuristic optimization with deep neural network scheme to improve exergoeconomic evaluation trough solar collector in hybrid nanomaterial","authors":"Imran Abbasi , Amjad Ali Pasha , Muhammad Naeem , Mohamed H. Ahmed , Naveed Ahmed , Faisal J. Alzahrani , Mehboob Ali , Waqar Azeem Khan","doi":"10.1016/j.rsurfi.2026.100807","DOIUrl":"10.1016/j.rsurfi.2026.100807","url":null,"abstract":"<div><div>Research on hybrid nanofluids has enhanced significantly in the recent years, and the results show the ideal heat transfer fluids for engineering applications are hybrid nano-fluids because of their enriched thermo-physical properties. The current numerical computational examination aims to simulate the properties of hybrid nanofluids heat transportation on a vertical stretching/shrinking surface. Alumina (<span><math><mrow><msub><mtext>Al</mtext><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub></mrow></math></span>) and silver (<span><math><mrow><mtext>Ag</mtext></mrow></math></span>) are the hybrid nanoparticles, while water is the base fluid. Thermal radiation, heat source/sink effects, and Joule heating all contribute to the transportation phenomena in Darcy-Forchheimer medium porous materials. Non-linear ODEs are obtained from governing PDEs by using suitable similarity transformation. MATLAB's numerical technique LM-BPS is applied to estimate the integration of flow work. Analysis of the behaviors of a few physical flow limitations is done using graphical and numerical results. The values of parameters including M (Magnetic field), S (Suction parameter) and Pr (Prandtl number) are changed to obtain the results. The results show that increasing values of <span><math><mrow><mi>M</mi></mrow></math></span> and <span><math><mrow><mi>S</mi></mrow></math></span> cause the velocity profile <span><math><mrow><msup><mi>f</mi><mo>′</mo></msup><mrow><mo>(</mo><mi>η</mi><mo>)</mo></mrow></mrow></math></span> to decrease and increasing values of <span><math><mrow><mi>S</mi></mrow></math></span> and <span><math><mrow><mi>Pr</mi></mrow></math></span> cause the temperature profile <span><math><mrow><mi>θ</mi><mrow><mo>(</mo><mi>η</mi><mo>)</mo></mrow></mrow></math></span> to decrease.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"23 ","pages":"Article 100807"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147849581","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":"Cobalt hydroxide to ZIF-67: A novel water-based electrochemical deposition","authors":"Eman Elsayed, Begum Tokay","doi":"10.1016/j.rsurfi.2026.100731","DOIUrl":"10.1016/j.rsurfi.2026.100731","url":null,"abstract":"<div><div>This study presents, a novel approach to electrochemically deposit continuous ZIF-67 films with controlled thickness. ZIF-67 is a zeolite imidazolate framework material comprised of tetrahedral cobalt (Co) cations and 2-methylimidazolate (HMim) linker in a zeolite-like sodalite (SOD) topology. We firstly deposited a layer of cobalt hydroxide (Co(OH)<sub>2</sub>) then the hydroxide layer was cathodically transformed to highly crystalline ZIF-67 films in HMim solution. Parameters such as concentrations of reactants, number of cyclic voltammetry (CV) scans and electrodeposition time were investigated while water was used as the solvent.</div><div>Results showed that low concentrations of metal salt (Co(NO<sub>3</sub>)<sub>2</sub> < 0.05 M) and linker (HMim <1.75 M) were not sufficient to form a continuous coverage of either (Co(OH)<sub>2</sub>) or ZIF-67, respectively. Using a concentration of 0.099 M Co(NO<sub>3</sub>)<sub>2</sub> and 1.75 M HMim yielded in ZIF-67 films with high crystallinity and homogeneous morphology. Increasing the electrodeposition time from 5 to 60 min showed a remarkable change in the ZIF-67 surface coverage (from 67% to 100%, respectively based on the morphological coverage). Film thickness was increased from 0.83 ± 0.12 μm to 3.00 ± 0.18 μm by increasing the number of CV cycles from 2 to 15, respectively. The developed approach was tested for scaling up the three-electrode cell from coating a 1 × 4 cm<sup>2</sup> substrate to 25 × 25 cm<sup>2</sup> in which the deposited scaled up ZIF-67 films had the same morphology and crystallinity of the small-scale substrate.</div><div>Finally, the feasibility of using the developed films in the application of electrooxidation of methanol was explored. The developed films demonstrated a potential and consistent cycling performance across 50 cycles.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"23 ","pages":"Article 100731"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172833","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}
Attia Khushi , Mushtaq K. Abdalrahem , Muhammad Habib Ullah Khan , Waqar Azeem Khan , Farkhod Rakhmonov , Mirjalol Ismoilov , Taseer Muhammad , Mehboob Ali
{"title":"Analysis of heat transfer characteristics for tetra nanofluid flow based on entropy rate and non-linear radiations through Bayesian-based neural network scheme","authors":"Attia Khushi , Mushtaq K. Abdalrahem , Muhammad Habib Ullah Khan , Waqar Azeem Khan , Farkhod Rakhmonov , Mirjalol Ismoilov , Taseer Muhammad , Mehboob Ali","doi":"10.1016/j.rsurfi.2026.100734","DOIUrl":"10.1016/j.rsurfi.2026.100734","url":null,"abstract":"<div><div>Nanofluids are at the forefront of research on enhanced HT fluids, which has a significant impact. They are widely applied across heat exchangers, mechanical systems, chemical processing, and other industries that demand superior HT capabilities. The present study addresses a Sakiadis flow configuration utilizing the advanced tetra-NF <span><math><mrow><mo>(</mo><mrow><mi>A</mi><msub><mi>l</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub><mo>/</mo><mi>M</mi><mi>g</mi><mi>O</mi><mo>/</mo><mi>C</mi><mi>u</mi><mo>/</mo><mi>A</mi><mi>g</mi><mo>−</mo><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></mrow><mo>)</mo></mrow></math></span>, owing to its improved thermal characteristics relative to previous NF formulations. This formulation utilizes recently developed characteristics alongside appropriate transformation functions. In addition, the energy equation is modified to include nonlinear radiation, dissipation, and convective heating effects, making it more applicable to thermal systems. The PDEs are transformed into ODEs using similarity variables. LBP-ANNs are used to create and explain a framework for entropy generation analysis. ANNs are used to graphically analyze temperature, velocity and entropy rate. These gradients are all represented graphically. In recent work, LBP-ANNs is used to discussed the solution behavior of Sakiadis flow by using tetra-NF on a flat moving surface with entropy generation impact. To deduced the solution behavior of <span><math><mrow><msup><mi>f</mi><mo>′</mo></msup><mrow><mo>(</mo><mi>η</mi><mo>)</mo></mrow></mrow></math></span> , <span><math><mrow><mi>β</mi><mrow><mo>(</mo><mi>η</mi><mo>)</mo></mrow></mrow></math></span> and <span><math><mrow><msub><mi>N</mi><mi>S</mi></msub><mrow><mo>(</mo><mi>η</mi><mo>)</mo></mrow></mrow></math></span>, the number of parameters likes; <span><math><mrow><mi>R</mi><mi>d</mi></mrow></math></span>, <span><math><mrow><mi>E</mi><mi>c</mi></mrow></math></span>, <span><math><mrow><mi>Pr</mi></mrow></math></span> and <span><math><mrow><msub><mi>ϕ</mi><mn>1</mn></msub></mrow></math></span> varied. In each case, ANNs are used to display the graphical results of MSE, EH, TSF, FSF, RGN-A, solution evaluation, and AE findings. The <span><math><mrow><msup><mi>f</mi><mo>′</mo></msup><mrow><mo>(</mo><mi>η</mi><mo>)</mo></mrow></mrow></math></span> profile rises up when there is an increase in <span><math><mrow><msub><mi>ϕ</mi><mn>1</mn></msub></mrow></math></span>. The <span><math><mrow><mi>β</mi><mrow><mo>(</mo><mi>η</mi><mo>)</mo></mrow></mrow></math></span> profile tends to decline with increasing difference of <span><math><mrow><mi>R</mi><mi>d</mi></mrow></math></span>, while it increases with increasing values of <span><math><mrow><mi>E</mi><mi>c</mi></mrow></math></span>& <span><math><mrow><mi>Pr</mi></mrow></math></span>. The entropy generation <span><math><mrow><msub><mi>N</mi><mi>G</mi></msub><mrow><mo>(</mo><mi>η</mi><mo>)</mo></mrow></mrow></math></span> profile rises u","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"23 ","pages":"Article 100734"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172944","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}
Olga B. Popovicheva , Christian Ludwig , Michel J. Rossi
{"title":"Detailed interface composition of graphitized soot and carbon T900: Reference material for atmospheric studies investigated by a flowing gas experiment","authors":"Olga B. Popovicheva , Christian Ludwig , Michel J. Rossi","doi":"10.1016/j.rsurfi.2026.100737","DOIUrl":"10.1016/j.rsurfi.2026.100737","url":null,"abstract":"<div><div>Two graphitized thermal soot samples (GTS6, GTS80) and graphitized soot with a deposited overlayer of organic carboxylic acid (GTS80 impregnated with 1,2,4-benzenetricarboxylic acid (4.88 % (w/w) 1,2,4 BTCA)) have been investigated in a flowing gas experiment under molecular flow conditions using a Knudsen flow reactor. As a comparison, a typical commercial amorphous carbon T900 has a significantly larger coverage of surface functional groups (SFG's) than both processed carbons GTS6 and GTS80 probed by NO<sub>2</sub>, O<sub>3</sub>, NH<sub>2</sub>OH, CF<sub>3</sub>COOH, HCl and N(CH<sub>3</sub>)<sub>3</sub>. Despite the high temperature processing, the interface of GTS6 and GTS80 still retains a significant coverage of reduced sites using O<sub>3</sub> as a probe gas, namely approximately 10 and 1 % of a monolayer (ML), respectively, compared to 46 % for T900. Using N(CH<sub>3</sub>)<sub>3</sub> as a probe gas we established that the tailor-made BTCA-covered GTS80 sample is highly acidic as expected having a -COOH group coverage of 51.7 ± 10.5 % of a molecular layer (ML). The corresponding initial uptake probability of most probe gases on T900 are significantly larger than for both GTS carbons, in line with the trends in coverage after saturating adsorption of probe gases.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"23 ","pages":"Article 100737"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172835","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":"Corrigendum to ‘Preparation and characterization of superhydrophobic and oleophobic surfaces as precursors for boiling applications’ [Results Surf. Interfaces 22 (2026) 100715]","authors":"Md Sazzadul Islam Sajol, Prem Kumar Bikkina","doi":"10.1016/j.rsurfi.2026.100742","DOIUrl":"10.1016/j.rsurfi.2026.100742","url":null,"abstract":"","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"23 ","pages":"Article 100742"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147944797","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}
Zahid Ahsan , Suzon Mahmud , Mohsina Rubayat Chowdhury , Yusuf Ali , Tamim Billah Fuad , Samsul Islam , Zafrin Fatme Alam , Subrata Saha , Md. Aminul Islam , Nayem Hossain
{"title":"Advances in additive manufacturing for medical robotics: A review","authors":"Zahid Ahsan , Suzon Mahmud , Mohsina Rubayat Chowdhury , Yusuf Ali , Tamim Billah Fuad , Samsul Islam , Zafrin Fatme Alam , Subrata Saha , Md. Aminul Islam , Nayem Hossain","doi":"10.1016/j.rsurfi.2026.100735","DOIUrl":"10.1016/j.rsurfi.2026.100735","url":null,"abstract":"<div><div>The Additive Manufacturing (AM) has emerged as a pivotal technology in the realm of medical robotics, facilitating the creation of patient-specific robotic components, miniaturized mechanisms, and application-oriented system architectures. The paper presents a review of the significance of AM techniques, particularly stereolithography, selective laser sintering, and fused deposition modeling, in the development of medical robotic structures, end-effectors, actuation housings, surgical instruments, and rehabilitation devices. The range is covered by the description of how AM enables the design of anatomically conformal robotic interfaces, lightweight kinematic structures, and customized surgical guides that are integrated into robotic platforms. The paper evaluates the materials utilized in AM-based medical robotics, which include biocompatible polymers, metallic alloys, and composite materials, focusing on their mechanical performance, sterilizability, and clinical applicability. Through a critical review of recent literature, the paper discusses key technical challenges, such as dimensional accuracy in precision robotic assemblies, material behavior under repetitive robotic loading, and the constraints related to the regulatory approval of additively manufactured robotic components. The review highlights the importance of AM in advancing robot-assisted surgery and rehabilitation by enabling the development of task-specific designs tailored to the unique anatomy of individual patients and their clinical workflows. Finally, potential future research avenues are identified, including multi-material robotic fabrication, embedded sensing, and actuation through additive manufacturing, all of which leverage the capabilities of this innovative technology.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"23 ","pages":"Article 100735"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146172898","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}
Inam Ur Rehman , Rakesh Chaudhari , Jay Vora , Vivek Patel , Sakshum Khanna , Subraya Krishna Bhat
{"title":"Corrigendum to ‘Experimental investigations on the machining performance of the WEDM process of NiTi SMA by comparison of Taguchi and Box-Behnken design approaches’ [Results Surf. Interfaces. 2025 100636]","authors":"Inam Ur Rehman , Rakesh Chaudhari , Jay Vora , Vivek Patel , Sakshum Khanna , Subraya Krishna Bhat","doi":"10.1016/j.rsurfi.2026.100751","DOIUrl":"10.1016/j.rsurfi.2026.100751","url":null,"abstract":"","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"23 ","pages":"Article 100751"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147944796","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}
L. Joseph Sademaki , B. Prabhakar Reddy , Jason M. Mkenyeleye
{"title":"Coupled surface-driven and nonlinear mixed convection of reactive MHD nanofluid transport over a gyrating cone with thermo-Brownian and electrothermal effects: Hybrid RKF-ANN-RSM framework","authors":"L. Joseph Sademaki , B. Prabhakar Reddy , Jason M. Mkenyeleye","doi":"10.1016/j.rsurfi.2026.100823","DOIUrl":"10.1016/j.rsurfi.2026.100823","url":null,"abstract":"<div><div>Nanofluid flow through a gyrating cone finds specific applications in spacecraft thermal modules, spinning-cone reactors, solar collectors, and nano-lubrication systems where enhanced heat transfer and rotational dynamics are important. Motivated by these sustained applications, this study intends to evaluate the effects of Dufour diffusion, Joule heating, thermal source, thermo-Brownian, heat dissipation in thermally radiative flow of mixed convective two-phase magnetohydrodynamic reactive nanofluid over a gyrating absorbent cone. The solutions of model's final nonlinear ordinary differential equations are derived via the combination of fourth order Runge-Kutta-Fehlberg (RKF) scheme and shooting technique. The computed results exposed that, cone rotation promotes secondary flow patterns, which in turn stimulate fluid radial motion and modify the velocity profile. Angle inclination, Brownian motion and material porosity stimulated to rise the primary velocity near to the cone wall and then decelerate away from the wall but viscous heating, thermophoresis and Joule heating effects unveiled opposite trend. The secondary velocity and fluid temperature augmented with thermal source, viscous and Joule heating effects. Thermophoresis and thermal Biot number effects caused to enhance fluid temperature. Likewise, Brownian motion, solute Biot number and chemical reactions in the flow impelled to depreciate fluid concentration. The primary and secondary wall frictions mitigated by magnetic field, radiation, thermophoresis but both wall frictions improved by Brownian motion and porosity effects. The thermo-Brownian and electrothermal impacts caused to degrade the Nusselt number. The Sherwood number noticeably raised by thermophoresis and Lewis number. Additionally, current methodology has been validated against the existing literature and ascertained excellent accuracy.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"23 ","pages":"Article 100823"},"PeriodicalIF":0.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147849580","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}
Krishnanjana K (Research scholar) , G. Mohan Ganesh (Professor)
{"title":"EFFICACY OF PUNICA GRANATUM PEEL EXTRACT ON THERMO MECHANICALLY TREATED STEEL BAR CORROSION THROUGH ELECTROCHEMICAL NOISE ANALYSIS","authors":"Krishnanjana K (Research scholar) , G. Mohan Ganesh (Professor)","doi":"10.1016/j.rsurfi.2026.100766","DOIUrl":"10.1016/j.rsurfi.2026.100766","url":null,"abstract":"<div><div>Steel's exceptional tensile strength makes it a favored material across various industries. However, acids commonly used in processes like pickling, cleaning, and descaling expose steel to corrosion. Green corrosion inhibitors are sustainable alternative to synthetic inhibitors to mitigate this corrosion in different industries. The application of Punica granatum peel extract to prevent thermo mechanically treated steel bar (TMT) from corroding in 1M HCl is a promising green construction technique. The unexplored electrochemical noise test is performed to evaluate the inhibitory effectiveness of extract, offering a method that is easier and quicker than conventional techniques such as Tafel and EIS (electrochemical impedance spectroscopy). Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) confirmed the adsorption and improved steel surface in HCl with extract. The UV-Vis (Ultraviolet visible spectroscopic study), FE-SEM (Field emission scanning electron microscopy) and X-ray photoelectron spectroscopy (XPS) analyses further validated the corrosion-inhibitive properties of the peel extract. This study signifies the alluring potential of Punica granatum peel extract as corrosion inhibitor for academic and industrial applications. To date, no studies have investigated electrochemical noise and ICP-MS tests to assess the corrosion inhibition performance of Punica granatum peel extract on TMT.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"23 ","pages":"Article 100766"},"PeriodicalIF":0.0,"publicationDate":"2026-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147539706","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":"Heat Transfer Enhancement in Darcy–Forchheimer Jeffrey–Hamel Flow of a Partially Ionized Power-Law Nanofluid under Hall and Ion-Slip Effects","authors":"Syed Modassir Hussain , A.M. Obalalu , Umair Khan","doi":"10.1016/j.rsurfi.2026.100757","DOIUrl":"10.1016/j.rsurfi.2026.100757","url":null,"abstract":"<div><div>Partially ionized fluids subjected to magnetic fields exhibit distinctive transport characteristics that are highly relevant to advanced thermal fluid systems. This study examines a modified Jeffrey Hamel configuration by analyzing Darcy Forchheimer flow of a partially ionized Power-law nanofluid, with emphasis on Hall and ion-slip effects. To overcome the limitations of classical Jeffrey Hamel models, an improved heat transport formulation is employed. Copper nanoparticles dispersed in ethylene glycol are considered to enhance thermal conductivity within non-parallel walls, while a constant pressure gradient drives the flow through both diverging and converging channels. The governing equations, based on modified Navier Stokes momentum balance, Fourier heat conduction, and generalized Ohm’s law, are solved to quantify the effects of key physical parameters. The results reveal that increasing the Hall current and ion-slip parameters significantly accelerates the fluid motion, with peak velocity rising by approximately 15–20% as their combined strength increases, while simultaneously weakening the resistive Lorentz force. Higher Reynolds and Weissenberg numbers reduce frictional drag, whereas inertia effects, porous resistance, and viscoelasticity suppress velocity in the diverging channel. Moreover, the diverging flow regime exhibits up to 25% higher wall shear stress and noticeably enhanced heat-transfer rates compared with the converging case. The combined influence of partial ionization, nanofluid suspension, and non-Newtonian behavior provides a viable mechanism for improving flow control and thermal performance in magneto-nanofluid systems used for thermal management and energy-conversion applications.</div></div>","PeriodicalId":21085,"journal":{"name":"Results in Surfaces and Interfaces","volume":"23 ","pages":"Article 100757"},"PeriodicalIF":0.0,"publicationDate":"2026-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147539718","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}