https://ijojournals.com/index.php/as <p><strong>IJO - International Journal of Applied Science</strong> seeks to promote and disseminate the knowledge by publishing original research findings, review articles, and short communications in the broad field of applied sciences. Subject areas include, but are not limited to the following fields: Biology, Physics, Chemistry, Pharmacy, Zoology, Health Sciences, Agriculture and Forestry, Environmental Sciences, Mathematics, Statistics, Animal Science, Bio-Technology, Medical Sciences, Geology, Social Sciences, Natural sciences, Political Science, Urban Development, Information Technology, e-Learning, e-Commerce, Architecture, Earth Science, Archaeological Science, A deal with engineering fundamentals&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</p> IJO JOURNAL en-US IJO - International Journal of Applied Science (ISSN: 2992-247X ) <p>Author(s) and co-author(s)&nbsp;jointly&nbsp;and severally represent and warrant that the Article is original with the author(s) and does not infringe any&nbsp;copyright or violate any other right of any third parties and that the Article has not been published&nbsp;elsewhere.&nbsp;Author(s) agree to the terms that the <strong>IJO Journal</strong> will have the full right to remove the published article on any misconduct found in the published article.</p> https://ijojournals.com/index.php/as/article/view/1178 <p>in this study on&nbsp; thin film flow of third grade fluid and entropy generation in pipe ,the coupled non-linear ordinary&nbsp; differential equations are solved using perturbation technique. Effects of third grade fluid, magnetic field and Brinkman number on entropy generation number due to heat transfer and fluid friction is investigated. It is observed that increase in the third grade parameter &nbsp;increases&nbsp; entropy generation number more at the region close to the centre of the pipe and less towards the wall of the cylindrical pipe. Influence of magnetic field shows that it has the tendency of enhancing thermodynamic irreversibility which can lead to increased entropy generation.It is further observed that the Brinkman number which is related to the irreversibility of the fluid flow and heat transfer processes increases with fluid viscosity resulting in entropy generation increase,&nbsp; enhances viscous dissipation as such leads to an increase in entropy generation number. However, third grade parameter increases the fluid friction which can lead to a decrease in heat transfer irreversibility resulting in lower Bejan number.</p> Boniface Inalu Obi Ohaegbulem, E.U ##submission.copyrightStatement## https://creativecommons.org/licenses/by-nc-nd/4.0/ 2025-11-03 2025-11-03 8 10 01 09