WSEAS Transactions on Fluid Mechanics最新文献_第3页

Hydromagnetic Flow of Casson Fluid Carrying CNT and Graphene Nanoparticles in Armory Production 军械库生产中携带碳纳米管和石墨烯纳米颗粒的卡森流体的磁流研究

WSEAS Transactions on Fluid Mechanics Pub Date : 2023-11-08 DOI: 10.37394/232013.2023.18.13

Abayomi S. Oke, Belindar A. Juma, Anselm O. Oyem

引用次数: 0

On the Optimal Choice of Type of Combustion Chamber for the Initiation of Gas Detonation 气体爆震起爆燃烧室类型的优化选择

WSEAS Transactions on Fluid Mechanics Pub Date : 2023-11-01 DOI: 10.37394/232013.2023.18.11

D. V. Voronin

引用次数: 0

Best Practice Guidelines on the Ansys in Building Wind Action Applications Ansys在建筑风力作用应用中的最佳实践指南

WSEAS Transactions on Fluid Mechanics Pub Date : 2023-11-01 DOI: 10.37394/232013.2023.18.12

Guilherme S. Teixeira, Marco D. De Campos

引用次数: 0

Evaluation of Concentrated Solar Power Systems and the Impact of Different Heat Transfer Fluids on Performance 聚光太阳能发电系统的评价及不同传热流体对性能的影响

WSEAS Transactions on Fluid Mechanics Pub Date : 2023-10-16 DOI: 10.37394/232013.2023.18.10

Mohamed R. Gomaa, Read Ahmad, M. A. Nawafleh

{"title":"Evaluation of Concentrated Solar Power Systems and the Impact of Different Heat Transfer Fluids on Performance","authors":"Mohamed R. Gomaa, Read Ahmad, M. A. Nawafleh","doi":"10.37394/232013.2023.18.10","DOIUrl":"https://doi.org/10.37394/232013.2023.18.10","url":null,"abstract":"Concentrated solar power (CSP) is one of the main technologies used. Thus, the object of research is the different concentrated solar power technologies. Moreover, this study aimed to compare the different concentrated solar power technologies in terms of their efficiency, cost, concentration ratio, and receiver temperature. Results showed that technologies were arranged according to high to low temperatures: the parabolic dish reflector, central receiver collector, linear Fresnel reflector, and parabolic trough collector. As well as, in this study, ranges of the heat transfer fluids are compared with each other by using exergy and energy analysis. The heat transfer fluids that are examined are liquid sodium, molten salt (60 % NaNO3, 40 % KNO3), supercritical carbon dioxide (sCO2), water/steam, and air. Results showed that the liquid sodium at an elevated temperature range of (540–740 °C) is performed the best, with exergy efficiency of 61% of solar-to-fluid, the best liquid sodium case is at (do=10.3 mm, nbanks = 1, Δprec= 7.72 bar, ηΠ = 45.47 %) has been found. Finally, vas a positive and effective approach to solving the energy problems.","PeriodicalId":39418,"journal":{"name":"WSEAS Transactions on Fluid Mechanics","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136113369","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}

引用次数: 0

A Two-Stage Electrohydrodynamic Gas Pump in a Rectangular Channel 矩形通道内两级电液动力气泵

WSEAS Transactions on Fluid Mechanics Pub Date : 2023-10-13 DOI: 10.37394/232013.2023.18.9

Sotirios J. Tampouris, Antonios X. Moronis

引用次数: 0

On the Thermoelastic Influence of Fluid-Gas Phase Transition Pressure on the Closed Structural Storage Container 流-气相变压力对密闭结构容器热弹性影响的研究

WSEAS Transactions on Fluid Mechanics Pub Date : 2023-10-11 DOI: 10.37394/232013.2023.18.8

Jacob Nagler

{"title":"On the Thermoelastic Influence of Fluid-Gas Phase Transition Pressure on the Closed Structural Storage Container","authors":"Jacob Nagler","doi":"10.37394/232013.2023.18.8","DOIUrl":"https://doi.org/10.37394/232013.2023.18.8","url":null,"abstract":"The current paper presents a finite element method (FEM) axisymmetric solution based on commercial software for an isotropic closed-ended container filled with fluid, located in the triple point phase (liquefied gas) while being converted into gas through a phase transition to critical point phase by a simultaneously rapid change of pressure and temperature to their critical values. The whole chemical process will be simulated through thermo-elastic analysis that is controlled by temperature-displacement dynamic coupling and subjected to step function boundary conditions alongside liquefied triple point initial conditions. In the process, the maximum principal stresses will be determined and illustrated as dependent on the container thickness. In the process, investigation will be carried out for prominent parameters, like, container hollow geometry type (spherical, ellipsoidal, and cylindrical) and raw material of the container. Commercial software solution calibration against existing literature solutions has been performed. Also, the solution accuracy was examined by element size mesh analysis to be coherent. In conclusion, the best materials to use were Molybdenum TZM and Tungsten while the preferred shape is the ellipsoidal shape. However, a typical vessel that is still durable with sufficient thermal strength for gas storage purposes is a cylinder body container with spherical ended cups made from Aluminum 6061 T6.","PeriodicalId":39418,"journal":{"name":"WSEAS Transactions on Fluid Mechanics","volume":"244 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136062430","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}

引用次数: 0

A Study of Flow in Open Orthogonal and Trapezoidal Channels with Gabion Walls 带格宾网箱壁的开放正交和梯形通道的流动研究

WSEAS Transactions on Fluid Mechanics Pub Date : 2023-10-06 DOI: 10.37394/232013.2023.18.7

D. Kasiteropoulou

引用次数: 0

Influence of Wing Shape on Airfoil Performance: a Comparative Study 翼型对翼型性能影响的比较研究

WSEAS Transactions on Fluid Mechanics Pub Date : 2023-10-06 DOI: 10.37394/232013.2023.18.5

Hocine Hares, Ghazali Mebarki

引用次数: 0

Magneto-Rotatory Convection in Couple-Stress Fluid 耦合应力流体中的磁旋转对流

WSEAS Transactions on Fluid Mechanics Pub Date : 2023-10-06 DOI: 10.37394/232013.2023.18.6

Pardeep Kumar

{"title":"Magneto-Rotatory Convection in Couple-Stress Fluid","authors":"Pardeep Kumar","doi":"10.37394/232013.2023.18.6","DOIUrl":"https://doi.org/10.37394/232013.2023.18.6","url":null,"abstract":"Background: Thermal convection is the most convective instability when crystals are produced from a single element like silicon and the thermal instability of a fluid layer heated from below plays an important role in geophysics, oceanography, atmospheric physics, etc. The flow through porous media is of considerable interest for petroleum engineers, for geophysical fluid dynamicists and has importance in chemical technology and industry. Many of the flow problems in fluids with couple-stresses indicate some possible experiments, that could be used for determining the material constants, and the results are found to differ from those of Newtonian fluid. Keeping this in view, the present work was to study the effect of a uniform vertical magnetic field on the couple-stress fluid heated from below in the presence of a uniform vertical rotation through permeable media. Methodology: The present problem is studied using the linearized stability theory, Boussinesq approximation, normal mode analysis, and the dispersion relation is obtained. Results: The stationary convection, stability of the system, and oscillatory modes are discussed. In the case of stationary convection, the rotation postpones the onset of convection. The magnetic field and couple-stress may hasten the onset of convection in the presence of rotation while in the absence of rotation; they always postpone the onset of convection. The medium permeability hastens the onset of convection in the absence of rotation while in the presence of rotation, it may postpone the onset of convection. The rotation and magnetic field are found to introduce oscillatory modes in the system which was non-existent in their absence. A sufficient condition for the non-existence of overstability is also obtained.","PeriodicalId":39418,"journal":{"name":"WSEAS Transactions on Fluid Mechanics","volume":"299 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135352533","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}

引用次数: 0

Entropy Generation in a Magnetohydrodynamic Hybrid Nanofluid Flow over a Nonlinear Permeable Surface with Velocity Slip Effect 具有速度滑移效应的非线性可渗透表面上磁流体动力学混合纳米流体流动的熵产生

WSEAS Transactions on Fluid Mechanics Pub Date : 2023-07-27 DOI: 10.37394/232013.2023.18.4

S. Salawu, H. Ogunseye, T. A. Yusuf, R. S. Lebelo, R. Mustapha

{"title":"Entropy Generation in a Magnetohydrodynamic Hybrid Nanofluid Flow over a Nonlinear Permeable Surface with Velocity Slip Effect","authors":"S. Salawu, H. Ogunseye, T. A. Yusuf, R. S. Lebelo, R. Mustapha","doi":"10.37394/232013.2023.18.4","DOIUrl":"https://doi.org/10.37394/232013.2023.18.4","url":null,"abstract":"The current study is designed to model the hydrothermal feature of a hybrid nano liquid slip flows over a permeable expanding/contracting surface with entropy generation. The model incorporates Cu-Al2O3 nanoparticles with water as the host liquid to simulate the flow. Additional impacts incorporated into the novelty of the model are viscous dissipation and Joule heating. The model is transformed appropriately to its dimensionless form using similarity quantities and the solution is numerically obtained using the spectral quasi-linearization method (SQLM). The impact of pertinent factors on the flow characteristics is communicated through graphs for the hybrid nano-suspension to discuss the hydrothermal variations. The friction factor and the rate of heat transport are also discussed with sensible judgment through tables. To ensure the code validity, a comparison with earlier studies is conducted and excellent consensus is accomplished. The result explored that diminution in the irreversibility ratio is witnessed for rising magnetic field strength along the free stream, distance away from the permeable surface as the heat dissipation to the surrounding decelerates. Also, the augmented nonlinearity parameter intensified the heat transfer rate for about 2.79% of the hybrid nano-suspension.","PeriodicalId":39418,"journal":{"name":"WSEAS Transactions on Fluid Mechanics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42830397","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}

引用次数: 0