{"id":3455,"date":"2025-06-03T10:42:46","date_gmt":"2025-06-03T07:42:46","guid":{"rendered":"https:\/\/fti.dp.ua\/conf\/?p=3455"},"modified":"2025-09-23T10:46:01","modified_gmt":"2025-09-23T07:46:01","slug":"cims-299","status":"publish","type":"post","link":"https:\/\/fti.dp.ua\/conf\/2025\/cims-299\/","title":{"rendered":"Modeling fin efficiency considering transverse temperature gradients in rocket engine cooling channels"},"content":{"rendered":"\n

Modeling fin efficiency considering transverse temperature gradients in rocket engine cooling channels<\/h1>\n\n\n\n
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Volodymyr Sliusariev<\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/h5>\n\n\n\n

ORCID: https:\/\/orcid.org\/0009-0004-2883-7467<\/a><\/em><\/p>\n\n\n\n

Oles Honchar Dnipro National University<\/em><\/p>\n<\/div><\/div>\n\n\n\n

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Valerii Bucharskyi<\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/h5>\n\n\n\n

ORCID: https:\/\/orcid.org\/0000-0002-8245-5652<\/a><\/em><\/p>\n\n\n\n

Oles Honchar Dnipro National University<\/em><\/p>\n<\/div><\/div>\n\n\n\n

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Purpose.<\/strong>\u00a0This study aims to improve the accuracy of methods for determining fin efficiency. Its goal is to derive calculation relationships for finning coefficients that account for transverse temperature non-uniformity within the fin cross-section.\u00a0Design \/ Method \/ Approach.<\/strong>\u00a0The article presents the reduction of the heat conduction equation for a fin to a dimensionless form, based on dimensional analysis of the variables involved. Further development relies on analyzing the results of numerical simulations and their subsequent generalization. To this end, the gradient descent method is applied, minimizing the quadratic error function.\u00a0Findings.<\/strong>\u00a0A criterial dependence has been formulated to complement the derived heat conduction equation. Test calculations and comparisons with numerical simulations in Ansys Fluent confirm an improvement in calculation accuracy when using the proposed equation.\u00a0Theoretical Implications.<\/strong>\u00a0This paper addresses factors previously neglected in the analysis of heat transfer in fins. The results of the study thus complement existing approaches to determining finning coefficients.\u00a0Practical Implications.<\/strong>\u00a0The derived criterial relationship will enhance the accuracy of heat transfer calculations in the chambers and gas generators of liquid rocket engines.\u00a0Originality \/ Value.<\/strong>\u00a0The paper introduces an original criterial relationship that accounts for temperature non-uniformity across the fin cross-section. Incorporating this factor improves calculation accuracy, highlighting the practical value of the developed equation.\u00a0Research Limitations \/ Future Research.\u00a0<\/strong>This study focuses on rectangular fins; therefore, the proposed model is not applicable to fins with variable thickness in the ducts of liquid propellant rocket engines (LPREs). Developing a fin model without these limitations will be the objective of future research on this topic.\u00a0Article Type.<\/strong>\u00a0Applied Research.<\/p>\n\n\n\n

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ACCESS ARTICLE<\/a><\/div>\n<\/div>\n\n\n\n
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CIMS 2025 The Awakening of Nature<\/a><\/div>\n\n
Engines, Energy and Thermotechnics<\/a><\/div><\/div>\n\n\n\n
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Modeling fin efficiency considering transverse temperature gradients in rocket engine cooling channels Volodymyr Sliusariev ORCID: https:\/\/orcid.org\/0009-0004-2883-7467 Oles Honchar Dnipro National University Valerii Bucharskyi ORCID: https:\/\/orcid.org\/0000-0002-8245-5652 Oles Honchar Dnipro National University Purpose.\u00a0This study aims to improve the accuracy of methods for determining fin efficiency. Its goal is to derive calculation relationships for finning coefficients that account for transverse temperature non-uniformity within the fin cross-section.\u00a0Design \/ Method \/ Approach.\u00a0The article presents the reduction of the heat conduction equation for a fin to … <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[39],"class_list":["post-3455","post","type-post","status-publish","format-standard","hentry","category-energy-2","tag-cims-2025-the-awakening-of-nature"],"_links":{"self":[{"href":"https:\/\/fti.dp.ua\/conf\/wp-json\/wp\/v2\/posts\/3455","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fti.dp.ua\/conf\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fti.dp.ua\/conf\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fti.dp.ua\/conf\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fti.dp.ua\/conf\/wp-json\/wp\/v2\/comments?post=3455"}],"version-history":[{"count":1,"href":"https:\/\/fti.dp.ua\/conf\/wp-json\/wp\/v2\/posts\/3455\/revisions"}],"predecessor-version":[{"id":3456,"href":"https:\/\/fti.dp.ua\/conf\/wp-json\/wp\/v2\/posts\/3455\/revisions\/3456"}],"wp:attachment":[{"href":"https:\/\/fti.dp.ua\/conf\/wp-json\/wp\/v2\/media?parent=3455"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fti.dp.ua\/conf\/wp-json\/wp\/v2\/categories?post=3455"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fti.dp.ua\/conf\/wp-json\/wp\/v2\/tags?post=3455"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}