Aerothermal characteristics of lateral channel flows with novel latticework morphologies
Augmented heat transfer efficacy with structural strengthening for an internally cooled gas turbine blade fosters innovative types of latticework composed by crossed zig-zag ribs, wavy ribs, offset circular or diamond-shaped pin-fins, which are arranged on opposite endwalls of a rectangular channel...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-10-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25011463 |
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| author | Shyy Woei Chang Yong-En Lu |
| author_facet | Shyy Woei Chang Yong-En Lu |
| author_sort | Shyy Woei Chang |
| collection | DOAJ |
| description | Augmented heat transfer efficacy with structural strengthening for an internally cooled gas turbine blade fosters innovative types of latticework composed by crossed zig-zag ribs, wavy ribs, offset circular or diamond-shaped pin-fins, which are arranged on opposite endwalls of a rectangular channel with lateral flow. Research novelty focuses on their attributing flow structures that constitute prolific mechanisms of heat transfer enhancement. Prior to delving into the analysis of Nusselt numbers, friction factors and aerothermal performance factors, the streaklines are correlatively showcased with fluid velocity, turbulent kinetic energy, and temperature fields. Following a favorable experimental verification, the analogical flow and heat transfer analysis from the perspectives of vortex cores and synergy angles, as well as the correlations devised from simulated Nusselt numbers and friction factors, complement the aerothermal advancements across present latticework morphologies with significant Nusselt number elevations to 4.5–8.42 times Dittus-Boelter references and aerothermal performance factors of 0.68–1.09 at Reynolds numbers of 10,000–30,000, thereby contributing to academic knowledge and practical applications. |
| format | Article |
| id | doaj-art-078b88e487a04d8dae5f482c0b802ee8 |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-078b88e487a04d8dae5f482c0b802ee82025-08-20T05:06:52ZengElsevierCase Studies in Thermal Engineering2214-157X2025-10-017410688610.1016/j.csite.2025.106886Aerothermal characteristics of lateral channel flows with novel latticework morphologiesShyy Woei Chang0Yong-En Lu1Department of Systems and Naval Mechatronic Engineering, National Cheng Kung University, No. 1, University Road, Tainan City, 70101, Taiwan, ROC; Corresponding author.Department of Systems and Naval Mechatronic Engineering, National Cheng Kung University, No. 1, University Road, Tainan City, 70101, Taiwan, ROCAugmented heat transfer efficacy with structural strengthening for an internally cooled gas turbine blade fosters innovative types of latticework composed by crossed zig-zag ribs, wavy ribs, offset circular or diamond-shaped pin-fins, which are arranged on opposite endwalls of a rectangular channel with lateral flow. Research novelty focuses on their attributing flow structures that constitute prolific mechanisms of heat transfer enhancement. Prior to delving into the analysis of Nusselt numbers, friction factors and aerothermal performance factors, the streaklines are correlatively showcased with fluid velocity, turbulent kinetic energy, and temperature fields. Following a favorable experimental verification, the analogical flow and heat transfer analysis from the perspectives of vortex cores and synergy angles, as well as the correlations devised from simulated Nusselt numbers and friction factors, complement the aerothermal advancements across present latticework morphologies with significant Nusselt number elevations to 4.5–8.42 times Dittus-Boelter references and aerothermal performance factors of 0.68–1.09 at Reynolds numbers of 10,000–30,000, thereby contributing to academic knowledge and practical applications.http://www.sciencedirect.com/science/article/pii/S2214157X25011463Novel latticework morphologiesVortex coreField synergy analysisGas turbine blade cooling |
| spellingShingle | Shyy Woei Chang Yong-En Lu Aerothermal characteristics of lateral channel flows with novel latticework morphologies Case Studies in Thermal Engineering Novel latticework morphologies Vortex core Field synergy analysis Gas turbine blade cooling |
| title | Aerothermal characteristics of lateral channel flows with novel latticework morphologies |
| title_full | Aerothermal characteristics of lateral channel flows with novel latticework morphologies |
| title_fullStr | Aerothermal characteristics of lateral channel flows with novel latticework morphologies |
| title_full_unstemmed | Aerothermal characteristics of lateral channel flows with novel latticework morphologies |
| title_short | Aerothermal characteristics of lateral channel flows with novel latticework morphologies |
| title_sort | aerothermal characteristics of lateral channel flows with novel latticework morphologies |
| topic | Novel latticework morphologies Vortex core Field synergy analysis Gas turbine blade cooling |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X25011463 |
| work_keys_str_mv | AT shyywoeichang aerothermalcharacteristicsoflateralchannelflowswithnovellatticeworkmorphologies AT yongenlu aerothermalcharacteristicsoflateralchannelflowswithnovellatticeworkmorphologies |