Nonlinear Slip Effects on Pipe Flow and Heat Transfer of Third Grade Fluid with Nonlinear Temperature-Dependent Viscosities and Internal Heat Generation
Gbeminiyi Sobamowo,
Akinbowale Akinshilo,
Ahmed Yinusa,
Oluwatoyin Adedibu
Issue:
Volume 6, Issue 3, September 2018
Pages:
69-88
Received:
8 July 2018
Accepted:
19 July 2018
Published:
21 August 2018
DOI:
10.11648/j.se.20180603.11
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Abstract: The various industrial, biological and engineering applications of third grade fluid have in recent times propel continuous research on the flow dynamics and heat transfer characteristics of the non-Newtonian fluid. In this work, effects of nonlinear hydrodynamic slip and temperature-jump conditions on pipe flow and heat transfer of third grade fluid with nonlinear temperature-dependent viscosities and internal heat generation are presented. The developed nonlinear governing equations are solved using regular perturbation method. In order to verify the accuracy of the solution methodology, the results of the approximate analytical solution are compared with the results of the numerical solutions using Runge-Kutta fourth-order coupled with shooting method. Good agreements are obtained between the analytical and the numerical results. Thereafter, the obtained approximate analytical solutions are used to investigate the effects of variable viscosity, non-Newtonian parameter, viscous dissipation and pressure gradient on the flow and heat transfer characteristics of the third-grade fluid in the pipe under Reynolds’s and Vogel’s temperature-dependent viscosities. The present results can be used to advance the analysis and study of the behaviour of third grade fluid flow and steady state heat transfer processes such as found in coal slurries, polymer solutions, textiles, ceramics, catalytic reactors, oil recovery applications etc.
Abstract: The various industrial, biological and engineering applications of third grade fluid have in recent times propel continuous research on the flow dynamics and heat transfer characteristics of the non-Newtonian fluid. In this work, effects of nonlinear hydrodynamic slip and temperature-jump conditions on pipe flow and heat transfer of third grade flu...
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Development of Circular Monopole Antenna for Intelligent Transportation System
Issue:
Volume 6, Issue 3, September 2018
Pages:
89-97
Received:
9 July 2018
Accepted:
20 July 2018
Published:
21 August 2018
DOI:
10.11648/j.se.20180603.12
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Abstract: Circular monopole antenna design is very attractive research area in smart city area. There have been many research works in that area for getting the better performance and higher accuracy. The paper presents the development of circular monopole antenna for intelligent transportation system based on the idea of vehicular communication network. In this work, the design of antenna parameters are very important to make the novel design of proposed antenna system with specific frequency range. At first, the radiation efficiency with respect to height, dielectric constant and Resonant Frequency of the substrate for designing the antenna system. And then, the effective permittivity versus width and length of the proposed antenna system. The design with stripline circular monopole antenna and coplanar waveguide circular monopole antenna have been developed with the help of FEKO software and MATLAB codes. The return loss with SL-CMA and CPWCMA by using the reflection coefficient and smith chart analysis. And the radiation pattern based on E-plane and H-plane and far-field with 3D plot have been analyzed by using simulation tools. The simulation results confirmed the designed monopole antenna has been received the better performance for intelligent transportation system applications. Based on the simulation results, the proposed antenna design would be utilized for Intelligent Transportation System with specific frequency.
Abstract: Circular monopole antenna design is very attractive research area in smart city area. There have been many research works in that area for getting the better performance and higher accuracy. The paper presents the development of circular monopole antenna for intelligent transportation system based on the idea of vehicular communication network. In ...
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A Fuzzy Prototype Solution for Website Quality Assurance
Akinola Olayinka,
Nwankwo Wilson,
Odunayo Adesola Aribisala,
John Temitope Ogbiti
Issue:
Volume 6, Issue 3, September 2018
Pages:
98-109
Received:
4 July 2018
Accepted:
19 July 2018
Published:
26 September 2018
DOI:
10.11648/j.se.20180603.13
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Abstract: Internet has become ubiquitous and organizations have moved from the traditional storage using physical files localized in cabinets to online remote storage accessible over websites. Over the years, different website evaluation tools have been developed to assist web administrators with website maintenance functions. Prior to a proper website assessment using majority of such tools, the web administrator would have to access each one differently reasons being that each tool is developed to measure different quality parameters. Later, Fuzz-web was developed to capture more parameters but with a limitation wherein the system depends on some of the evaluation tools for inputs, the implication being that where such tools are not available there will be an express failure of fuzz-web. To overcome the foregoing problems, this paper is aimed at developing a Fuzzy-Based Website Quality Assurance System. It employs fuzzy logic principles, exploiting the inherent power of the Java programming language to evolve a system that can be used to detect broken links, slow loading pages, Hypertext Transfer Protocol-related errors in a website, and the overall quality status of a website. The system relieves the user of the gross dependence on several external evaluation tools and with the information provided, enhances the proactive web administrators to be proactive in amending errors.
Abstract: Internet has become ubiquitous and organizations have moved from the traditional storage using physical files localized in cabinets to online remote storage accessible over websites. Over the years, different website evaluation tools have been developed to assist web administrators with website maintenance functions. Prior to a proper website asses...
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