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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Wang, Xinjun Bai, Xiaowei Wu, Jiangbo Liu, Rui Zhu, Ding Liao, Gaoliang |
| Copyright Year | 2011 |
| Abstract | By using the CFX software, three-dimensional flow and heat transfer characteristics in rectangular cooling ducts with in-line and staggered array pin-fins of gas turbine blade trailing edge were numerically simulated. The effects of in-line and staggered arrays of pin-fins, flow Reynolds number as well as density of cylindrical pin-fins in flow direction on heat transfer characteristics were analyzed. Both in the cases of in-line and staggered arrays of pin-fins, the results show that the pin-fin surface averaged Nusselt number increases with the increasing of Reynolds number. In the case of the same Reynolds number, the mean Nusselt number of pin-fin surface decreased with the increasing of X/D (the ratio of streamwise pin-pitch to pin-fin diameter) value. The Nusselt number increases gradually before the first pin-fin row and then reached the fully developed value at fourth or fifth row. The pin-fin Nusselt number at flow direction is larger than that at back flow direction. Along the height direction of pin-fin, the Nusselt number in middle area is larger. |
| Sponsorship | International Gas Turbine Institute |
| Starting Page | 1145 |
| Ending Page | 1154 |
| Page Count | 10 |
| File Format | |
| ISBN | 9780791854655 |
| DOI | 10.1115/GT2011-45286 |
| Volume Number | Volume 5: Heat Transfer, Parts A and B |
| Conference Proceedings | ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition |
| Language | English |
| Publisher Date | 2011-06-06 |
| Publisher Place | Vancouver, British Columbia, Canada |
| Access Restriction | Subscribed |
| Subject Keyword | Blade trailing edge Pin-fin cooling Numerical simulation Rectangular ducts Fins Cooling Blades Ducts Heat transfer |
| Content Type | Text |
| Resource Type | Article |
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