Heat Transfer最新文献

{"title":"Investigating Salt-Finger Convection Under Time-Dependent Gravity Modulation in Micropolar Liquids","authors":"Devika Jayan,&nbsp;Clair Tom,&nbsp;N. Arun Kumar","doi":"10.1002/htj.23252","DOIUrl":"https://doi.org/10.1002/htj.23252","url":null,"abstract":"<div>\u0000 \u0000 <p>This paper investigates how gravity modulation affects salt-finger convection in a micropolar liquid layer confined between two parallel, infinitely long plates separated by a thin gap. The system is heated and has solute added from above. The study uses linear stability analysis to examine when and how salt-finger convection, driven by the salt-finger process, begins. To analyze this, the partial differential equations governing the system are solved numerically using normal mode analysis. The Venezian approach is applied to find the critical Rayleigh number and the solutal Rayleigh number, which are key to understanding the onset of convection. Also, the paper explores how different micropolar fluid parameters—such as the coupling parameter, micropolar heat conduction parameter, couple stress parameter, and inertia parameter—affect the system when gravity modulation is present. It is found that gravity modulation can either stabilize or destabilize convection, depending on its frequency. At very high frequencies (approaching infinity), the effect of gravity modulation becomes minimal, having little impact on the convection process. The paper also examines the relationship between the critical Rayleigh number and the solutal Rayleigh number, which are related to heat and solute concentration, respectively.</p>\u0000 </div>","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 3","pages":"1782-1795"},"PeriodicalIF":2.8,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143801749","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 Atomized Droplet Characteristics and Heat Transfer Performance in Minimum Quantity Lubrication Cutting Technology","authors":"Donghui Li,&nbsp;Tao Zhang,&nbsp;Tao Zheng,&nbsp;Nan Zhao,&nbsp;Zhen Li","doi":"10.1002/htj.23254","DOIUrl":"https://doi.org/10.1002/htj.23254","url":null,"abstract":"<div>\u0000 \u0000 <p>Minimum quantity lubrication (MQL) cutting technology is ecologically friendly and efficient in terms of cooling and lubrication. It has be.en widely used in recent years. The atomization effect of the MQL system was characterized by the average diameter of atomized droplets in this study. Second, the MQL heat transfer experimental platform was built, and the cooling experiments were carried out under different MQL parameters. The heat flux density is linearly related to the heat source temperature under steady-state conditions, and the nozzle target distance has the greatest influence on the cooling effectiveness. The flow state of the lubricating oil is liquid film flow when the heat source temperature is lower than 120°C. The flow state of the lubricating oil is ditch flow when the heat source temperature is higher than 180°C. The average droplet diameter decreased by 43.7% when the pressure was 0.4 MPa compared with 0.2 MPa. An increase in gas supply pressure can improve the cooling effect of MQL. With the increase in flow rate, the average droplet diameter and steady-state heat flux do not change significantly. At 270°C, the steady-state heat flux at a flow rate of 90 mL/h was only 2.99% lower than that at 18 mL/h. The average droplet diameter is the smallest, and the cooling effect is the best when the nozzle diameter is 1.5 mm. The heat transfer effect is the best when the nozzle distance is 20 mm at different temperatures. When the nozzle distance is between 20 and 40 mm, the heat transfer capacity of MQL is the most stable. The heat transfer performance of MQL is helpful to improving the efficiency and quality of cutting, and promoting the implementation of a green manufacturing and sustainable development strategy.</p>\u0000 </div>","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 2","pages":"1750-1760"},"PeriodicalIF":2.8,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380567","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":"Numerical Study on the Effect of Trapezoidal-Wave Shaped Partition on Natural Convection Flow Within a Porous Enclosure","authors":"Jayesh Chordiya,&nbsp;Padmakar Deshmukh,&nbsp;Ram V. Sharma","doi":"10.1002/htj.23247","DOIUrl":"https://doi.org/10.1002/htj.23247","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 &lt;p&gt;The use of a trapezoidal-wave shaped diathermal partition to reduce natural convection flow and heat transfer within a fluid-saturated, differentially heated porous enclosure is investigated in this study. This work is motivated by the need to control and reduce convective heat transfer in differentially heated porous enclosures, impacting applications like energy-efficient building materials, thermal insulation, and improved heat exchangers. The study aims to disrupt convection currents and minimize thermal transfer. The Darcy flow model, representing fluid flow in porous media, is applied here and solved using the successive accelerated replacement (SAR) scheme with a finite difference method. Key parameters are varied to explore their effects on thermal and flow patterns. These parameters include the partition's length (with values between &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 \u0000 &lt;mrow&gt;\u0000 &lt;mn&gt;0.02&lt;/mn&gt;\u0000 \u0000 &lt;mo&gt;≤&lt;/mo&gt;\u0000 \u0000 &lt;mi&gt;Z&lt;/mi&gt;\u0000 \u0000 &lt;mo&gt;≤&lt;/mo&gt;\u0000 \u0000 &lt;mn&gt;0.1&lt;/mn&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt; &lt;math altimg=\"urn:x-wiley:26884534:media:htj23247:htj23247-math-0001\" wiley:location=\"equation/htj23247-math-0001.png\" display=\"inline\" xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;mrow&gt;&lt;mrow&gt;&lt;mn&gt;0.02&lt;/mn&gt;&lt;mo&gt;unicode{x02264}&lt;/mo&gt;&lt;mi&gt;Z&lt;/mi&gt;&lt;mo&gt;unicode{x02264}&lt;/mo&gt;&lt;mn&gt;0.1&lt;/mn&gt;&lt;/mrow&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;), height (spanning from &lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 \u0000 &lt;mrow&gt;\u0000 &lt;mn&gt;0&lt;/mn&gt;\u0000 \u0000 &lt;mo&gt;≤&lt;/mo&gt;\u0000 \u0000 &lt;mi&gt;H&lt;/mi&gt;\u0000 \u0000 &lt;mo&gt;≤&lt;/mo&gt;\u0000 \u0000 &lt;mn&gt;1&lt;/mn&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;/mrow&gt;\u0000 &lt;annotation&gt; &lt;math altimg=\"urn:x-wiley:26884534:media:htj23247:htj23247-math-0002\" wiley:location=\"equation/htj23247-math-0002.png\" display=\"inline\" xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;mrow&gt;&lt;mrow&gt;&lt;mn&gt;0&lt;/mn&gt;&lt;mo&gt;unicode{x02264}&lt;/mo&gt;&lt;mi&gt;H&lt;/mi&gt;&lt;mo&gt;unicode{x02264}&lt;/mo&gt;&lt;mn&gt;1&lt;/mn&gt;&lt;/mrow&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/annotation&gt;\u0000 &lt;/semantics&gt;&lt;/math&gt;), and distance from the left wall of the enclosure (&lt;span&gt;&lt;/span&gt;&lt;math&gt;\u0000 &lt;semantics&gt;\u0000 &lt;mrow&gt;\u0000 \u0000 &lt;mrow&gt;\u0000 &lt;mn&gt;0.25&lt;/mn&gt;\u0000 \u0000 &lt;mo&gt;≤&lt;/mo&gt;\u0000 \u0000 &lt;mi&gt;D&lt;/mi&gt;\u0000 \u0000 &lt;","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 2","pages":"1733-1749"},"PeriodicalIF":2.8,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380566","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":"Innovative Enhancements for Hemispherical Solar Stills: Enhancing Performance With Copper Conical Fins and Red Brick Fillings","authors":"Mohammed El Hadi Attia,&nbsp;Abd Elnaby Kabeel,&nbsp;M. A. Elazab,&nbsp;M. G. Mousa","doi":"10.1002/htj.23257","DOIUrl":"https://doi.org/10.1002/htj.23257","url":null,"abstract":"<div>\u0000 \u0000 <p>The existence of fins on a basin's flat absorber undoubtedly enhances the thermal efficiency and distillate output by increasing the exposed surface area of water to sunlight. However, the issue of shading caused by the fins hampers the productivity of distillers. Researchers are currently seeking a resolution to this problem. The current study conducted a performance comparison of hemispherical solar distillers using copper conical fins with a diameter of 4 cm and a height of 2 cm. The distillers were also equipped with copper conical fins-filled red bricks, which were painted black. These fins were placed on the bottom of the basin at various spacing intervals (0, 1, and 2 cm) and a water depth of 2 cm. The experimental data showed that the productivity values of the hemispherical solar distiller using copper conical fins (HSD-CCF) were 6.00, 5.40, and 5.00 L/m², while the productivity values of the hemispherical solar distiller using copper conical fins-filled with red bricks (HSD-CCF &amp; RB) were 7.00, 6.30, and 5.80 L/m² at spacing distances of 0, 1, and 2 cm, respectively. The conventional hemispherical solar distiller without fins (CHSD) achieved a peak efficiency of 4.50 L/m². The HSD-CCF achieves cumulative yields of 33.33%, 20.00%, and 11.11% when utilizing copper conical fins at spacing distances of 0, 1, and 2 cm, respectively, compared to the THSD. The efficiency of the hemispherical sun distiller using copper conical fins-filled with red bricks (HSD-CCF &amp; RB) is enhanced by 55.55%, 40.00%, and 28.89% when compared to the conventional hemispherical solar distiller (THSD), at spacing distances of 0, 1, and 2 cm, respectively. The study discovered that including copper conical fins packed with red bricks improves the efficiency of solar distillers. Furthermore, the study revealed that increasing the spacing between the fins further reduces shading, hence enhancing performance.</p>\u0000 </div>","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 3","pages":"1765-1781"},"PeriodicalIF":2.8,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143801908","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":"Implementation of a Realistic Multicell CFD Model to Investigate the Thermal Characteristics Within a Solar PV Module","authors":"Shubham Kumar,&nbsp;P. M. V. Subbarao","doi":"10.1002/htj.23256","DOIUrl":"https://doi.org/10.1002/htj.23256","url":null,"abstract":"<div>\u0000 \u0000 <p>The thermal characteristics within a solar photovoltaic (PV) module are vital in determining its real field power output and lifetime. The structural and thermal complexities within a PV module have often been ignored in the past CFD-based research works. However, those complexities can substantially impact the thermal diffusion occurring within the module. The present study proposes a realistic multilayered multicell model in which the PV cells are considered as multiple distinct domains with encapsulant-filled discontinuities. The model is validated with experimental results and then implemented to investigate the cell temperature, thermal profile, and temperature gradients within a free-standing PV module in various wind conditions. The low thermal conductance of discontinuities among PV cells is found to be the key factor in raising the cell temperature 2°C–3°C above the back temperature. The current mismatch loss due to temperature nonuniformity is estimated to be up to 0.28% for a 50 W module and should be higher in bigger-size modules. Very high-temperature gradients (order of 10³°C/m) are observed in the encapsulant and backsheet layers near the cell edges, which can lead to high thermal stress and consequent degradation. The back temperature, temperature pattern along the surface, and location of hotter zones remain largely unaffected by the discontinuities among PV cells.</p>\u0000 </div>","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 2","pages":"1719-1732"},"PeriodicalIF":2.8,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380578","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":"Numerical Analysis of the Heat and Mass Transfer in a Ventilated Cavity for Turbulent Convective Flow With Extreme Hot and Humid Climate Conditions","authors":"J. Serrano-Arellano,&nbsp;F. N. Demesa López,&nbsp;K. M. Aguilar-Castro,&nbsp;J. M. Belman-Flores","doi":"10.1002/htj.23246","DOIUrl":"https://doi.org/10.1002/htj.23246","url":null,"abstract":"<div>\u0000 \u0000 <p>To analyze the temperature and relative humidity (<i>RH</i>) in a room located in the Lacandona jungle in Chiapas, Mexico, a numerical heat and mass transfer study was performed. The study was carried out in a ventilated cavity, by introducing air flow into user-occupied spaces. The study analyzed the combination of temperature and humidity percentage to create thermal comfort conditions. The finite volume method was used to solve the governing equations, while pressure–velocity coupling was done with the SIMPLEC algorithm. Turbulent airflow was considered, and modeled using the <i>k–ε</i> turbulence model, with Reynolds numbers (<i>Re</i>) in the range from 100 to 5000. Seven sets of weather conditions were considered for a warm April day with solar radiation values that ranged from 0 to 981 W/m², outdoor temperatures between 19.9°C and 35.3°C, as well as <i>RH</i> from 42% up to 100%. The study analyzed temperature, <i>RH</i>, distribution efficiencies, and heat fluxes. It was found that the average temperature closest to thermal comfort was 25.8°C. This corresponds to an <i>Re</i> = 5000, being the best hygrothermal conditions with an average <i>RH</i> of 50%. However, this level of <i>RH</i> is unattainable by many air conditioning systems.</p>\u0000 </div>","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 2","pages":"1691-1710"},"PeriodicalIF":2.8,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379973","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":"Effect of Tray Geometry on Multitray Stepped Solar Still Performance: An Experimental Study","authors":"Ahmed Rahmani,&nbsp;Zine Saadi,&nbsp;Ouahid Keblouti","doi":"10.1002/htj.23253","DOIUrl":"https://doi.org/10.1002/htj.23253","url":null,"abstract":"<div>\u0000 \u0000 <p>The multitray solar still (MTSS) is one of the most efficient and economical designs compared with other solar still systems. MTSS has lower heat loss and a large evaporation area, and its basin is more exposed to solar radiation. Nevertheless, optimizing the tray's geometry is essential to improve the still's thermal behavior and productivity. The primary goal of this study is to examine the effect of the tray's geometry on the MTSS performance under outdoor experiments. A comparative analysis was conducted between the triangular-trays solar still (TTSS), the rectangular-trays solar still (RTSS), and the single-slope conventional solar still (CSS) in winter and summer weather conditions. Results show that integrating a multitray evaporator improves the daily yield compared with the CSS and that the thermal performance of the modified solar still depends mainly on the weather conditions. The comparison shows that the triangular trays are more effective than the rectangular ones. The daily productivity of TTSS exceeds that of RTSS by 10% in winter and 24.24% in summer. Moreover, the daily thermal efficiencies of CSS, RTSS, and TTSS are maximum in summer conditions by about 28.1%, 41.2%, and 44.15%, respectively.</p>\u0000 </div>","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 2","pages":"1711-1718"},"PeriodicalIF":2.8,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379972","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":"Analysis of the Influence of the Soret Number on Axisymmetric Flow Through the Application of the Successive Linearization Technique","authors":"P. Pramod Kumar,&nbsp;Bala Siddulu Malga,&nbsp;Lakshmi Appidi,&nbsp;Ch. Mangamma,&nbsp;M. Sridevi,&nbsp;P. S. Ravi","doi":"10.1002/htj.23249","DOIUrl":"https://doi.org/10.1002/htj.23249","url":null,"abstract":"<div>\u0000 \u0000 <p>This study presents a mathematical model that delineates the radially expanding axisymmetric discharge of an electrically conductive fluid over a surface, taking into account the effects of the Soret number. The dynamics of the flow are examined as the surface experiences exponential radial expansion. To transform the governing nonlinear partial differential equations into standard derivative forms, similarity transformations are applied. The flow dynamics are further investigated using the Successive Linearization Method. To achieve accurate solutions that converge effectively to the complete numerical solution, the Chebyshev spectral method is employed to solve the resulting linear system. Previous research is cited to support the findings related to the distribution of velocity, temperature, and concentration, emphasizing the convergence and accuracy of the solution while considering the influence of various fluid parameters.</p>\u0000 </div>","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 2","pages":"1681-1690"},"PeriodicalIF":2.8,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380464","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":"Machine Learning Modeling of Anchovy Waste Treatment Using Solar Drying","authors":"Najjar Mohammed,&nbsp;Tagnamas Zakaria,&nbsp;Bahammou Younes,&nbsp;Bouyghf Hamid,&nbsp;Nahid Mohammed","doi":"10.1002/htj.23242","DOIUrl":"https://doi.org/10.1002/htj.23242","url":null,"abstract":"<div>\u0000 \u0000 <p>This study aims to valorize coproducts from the anchovy processing chain by obtaining compounds of interest through the implementation of environmentally friendly and energy-efficient techniques. These methods, which also apply to other fresh anchovy waste coproducts, seek to minimize the environmental pollution associated with conventional systems. The investigation focused on the application of solar drying as a treatment of anchovy waste. The resulting data were employed to model the drying behavior of anchovy waste using five machine learning algorithms. A thermokinetic study was conducted under both natural and forced convection solar drying to establish the optimal conditions for drying and storing anchovy heads, which are a significant source of high-quality proteins for human and animal nutrition. Drying kinetics were examined at three temperatures (60°C, 70°C, and 90°C) and two airflow rates (150 and 300 m³/h). The study identified air drying temperature as the most critical factor affecting the drying kinetics of anchovy wastes. Machine learning modeling of anchovy waste solar drying was conducted, and evaluated models were RNN, LSTM, GRU, LightGBM, and CatBoost. CatBoost demonstrated superior performance in predicting moisture content. It achieved the lowest Mean Squared Error of 1.1491e − 06, the lowest Mean Absolute Error of 0.0006265, and the highest coefficient of determination (<i>R</i>²) of 99.99%. The comparative analysis highlighted distinct differences in the predictive accuracy of the models, with CatBoost emerging as the most effective.</p>\u0000 </div>","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 2","pages":"1650-1664"},"PeriodicalIF":2.8,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380388","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":"Impact of Dual Phase Lag on Natural Convection Flow in a Porous Vertical Channel in the Presence of Periodic Boundary","authors":"N. L. Mukhtar,&nbsp;H. M. Jibril","doi":"10.1002/htj.23239","DOIUrl":"https://doi.org/10.1002/htj.23239","url":null,"abstract":"<div>\u0000 \u0000 <p>The dual-phase-lag (DPL) heat conduction model is utilized in this research to analyze the fluid flow of viscous fluid passing through a porous vertical channel with periodic boundary conditions. Periodic heating is subjected to the channel boundary. Equations regarding the model, including the momentum and energy equations, in which the DPL term is incorporated, all in dimensional form, are stated and are being transformed to their dimensionless form, then solved analytically by undetermined coefficients and variation of parameters. The actual expressions of temperature and velocity, as well as the heat transfer rate and skin friction, are determined. The effects of the DPL parameters, suction/injection, Prandtl number, heat source/sink, and Strouhal number on the dimensionless temperature and velocity profiles are demonstrated using graphs that are constructed with the aid of MATLAB. It was found during the investigation that the introduction of the DPL model, together with suction/injection in the channel, enhances the velocity and fluid temperature within the channel. Also, the decreasing effect of temperature gradient phase lag on fluid temperature and velocity conversed with that of heat flux phase lag. As an important contribution, the discovery of the effects of the phase-lag parameters of the DPL model and suction/injection on fluid temperature and velocity would significantly help researchers advance the design of electrical and electronic systems.</p>\u0000 </div>","PeriodicalId":44939,"journal":{"name":"Heat Transfer","volume":"54 2","pages":"1623-1637"},"PeriodicalIF":2.8,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380462","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}