TRANSPIRATION COOLING IN GAS TURBINE TRAILING EDGE USING STAINLESS STEEL AND TITANIUM POROUS MEDIA

TRANSPIRATION COOLING IN GAS TURBINE TRAILING EDGE USING STAINLESS STEEL AND TITANIUM POROUS MEDIA | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 10 January 2025 V1 Latest version Share on TRANSPIRATION COOLING IN GAS TURBINE TRAILING EDGE USING STAINLESS STEEL AND TITANIUM POROUS MEDIA Author : Md Tarif Raihan 0009-0000-9620-7732 [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.173653978.80093873/v1 194 views 203 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract This paper investigates the transpiration cooling performance of porous media, comparing SS316L and Titanium in a rectangular channel. The experimental setup involved heating the porous materials using a hot air blower and cooling with controlled airflow at varying Reynolds numbers (Re = 39,000, Re = 63,000, and Re = 70,000). Temperature distributions and cooling effectiveness were recorded and analyzed. Simulation studies were conducted parallel to validate the experimental results and provide further insights into the flow and thermal characteristics. The findings reveal that both materials exhibit increased cooling effectiveness with higher Reynolds numbers. SEM imaging shows that Titanium demonstrated superior cooling performance due to its higher thermal conductivity and a well-structured, finely distributed porous network. This uniformity facilitated enhanced airflow interaction, particularly at higher Reynolds numbers. SS316L, while exhibiting lower cooling effectiveness, provided more consistent thermal performance across the surface, highlighting its suitability for applications requiring uniform heat dissipation. Comparative analysis of experimental and simulation results showed reasonable agreement, with simulations capturing the overall trends of the cooling behavior. However, discrepancies were observed at localized points, particularly for SS316L at lower Reynolds numbers and Titanium at higher Reynolds numbers. These differences emphasize the influence of realworld flow dynamics, boundary layer effects, and porosity distribution on cooling performance. This study underscores the importance of combining experimental and simulation approaches to evaluate transpiration cooling systems comprehensively. The results provide critical insights for material selection and design optimization in applications requiring efficient thermal management, such as aerospace and high-performance cooling systems. Future work should focus on refining simulation models and exploring long-term durability under extreme operating conditions to enhance the applicability of these materials. Supplementary Material File (transpiration_cooling_tarif_12.pdf) Download 1.64 MB Information & Authors Information Version history V1 Version 1 10 January 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords porous media heat transfer thermal management materials transpiration cooling Authors Affiliations Md Tarif Raihan 0009-0000-9620-7732 [email protected] View all articles by this author Metrics & Citations Metrics Article Usage 194 views 203 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Md Tarif Raihan. TRANSPIRATION COOLING IN GAS TURBINE TRAILING EDGE USING STAINLESS STEEL AND TITANIUM POROUS MEDIA. Authorea . 10 January 2025. DOI: https://doi.org/10.22541/au.173653978.80093873/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . Format Please select one from the list RIS (ProCite, Reference Manager) EndNote BibTex Medlars RefWorks Direct import Tips for downloading citations document.getElementById('citMgrHelpLink').addEventListener('click', function() { popupHelp(this.href); return false; }); $(".js__slcInclude").on("change", function(e){ if ($(this).val() == 'refworks') $('#direct').prop("checked", false); $('#direct').prop("disabled", ($(this).val() == 'refworks')); }); Cited by Arshad Farooq, Shaowen Chen, Yimin Zhang, Pengcheng Yang, Numerical investigation of vortex-based sweeping jet actuator for film cooling: A comparative study, Aerospace Science and Technology, 162 , (110252), (2025). https://doi.org/10.1016/j.ast.2025.110252 Crossref Loading... View Options View options PDF View PDF Figures Tables Media Share Share Share article link Copy Link Copied! Copying failed. Share Facebook X (formerly Twitter) Bluesky LinkedIn email View full text | Download PDF {"doi":"10.22541/au.173653978.80093873/v1","type":"Article"} Now Reading: Share Figures Tables Close figure viewer Back to article Figure title goes here Change zoom level Go to figure location within the article Download figure Toggle share panel Toggle share panel Share Toggle information panel Toggle information panel Go to previous graphic Go to next graphic Go to previous table Go to next table All figures All tables View all material View all material xrefBack.goTo xrefBack.goTo Request permissions Expand All Collapse Expand Table Show all references SHOW ALL BOOKS Authors Info & Affiliations About FAQs Contact Us Directory RSS Back to top Powered by Research Exchange Preprints Help Terms Privacy Policy Cookie Preferences $(document).ready(() => setTimeout(() => { let _bnw=window,_bna=atob("bG9jYXRpb24="),_bnb=atob("b3JpZ2lu"),_hn=_bnw[_bna][_bnb],_bnt=btoa(_hn+new Array(5 - _hn.length % 4).join(" ")); $.get("/resource/lodash?t="+_bnt); },4000)); (function(){function c(){var b=a.contentDocument||a.contentWindow.document;if(b){var d=b.createElement('script');d.innerHTML="window.__CF$cv$params={r:'a00e755b4a551640',t:'MTc3OTY0ODMzNw=='};var a=document.createElement('script');a.src='/cdn-cgi/challenge-platform/scripts/jsd/main.js';document.getElementsByTagName('head')[0].appendChild(a);";b.getElementsByTagName('head')[0].appendChild(d)}}if(document.body){var a=document.createElement('iframe');a.height=1;a.width=1;a.style.position='absolute';a.style.top=0;a.style.left=0;a.style.border='none';a.style.visibility='hidden';document.body.appendChild(a);if('loading'!==document.readyState)c();else if(window.addEventListener)document.addEventListener('DOMContentLoaded',c);else{var e=document.onreadystatechange||function(){};document.onreadystatechange=function(b){e(b);'loading'!==document.readyState&&(document.onreadystatechange=e,c())}}}})();