Pressure Loss Reduction in U-Bend Using the Adjoint Method | ||||
| International Conference on Aerospace Sciences and Aviation Technology | ||||
| Article 23, Volume 17, AEROSPACE SCIENCES & AVIATION TECHNOLOGY, ASAT - 17 – April 11 - 13, 2017, April 2017, Page 1-15 PDF (1.32 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/asat.2017.22385 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Ahmed Osama1; Khairy Elsayed2; Mohamed M. El-Telbany3 | ||||
| 1Demonstrator, Mechanical Power Engineering Department, Faculty of Engineering-Mataria, Helwan University, Masaken El-Helmia P.O., Cairo 11718, Egypt. | ||||
| 2Assistant professor, Mechanical Power Engineering Department, Faculty of Engineering- Mataria, Helwan University, Masaken El-Helmia P.O., Cairo 11718, Egypt. | ||||
| 3Professor, Mechanical Power Engineering Department, Faculty of Engineering- Mataria, Helwan University, Masaken El-Helmia P.O., Cairo 11718, Egypt. | ||||
| Abstract | ||||
| Gas turbine blades are usually cooled by air, which flows through internal passages serpentine shaped, coming from a high pressure compressor to save it from the high temperature. Using 180 degree turns to connect internal paths led to high pressure loss in the cooling system. The purpose of this study is reducing the pressure loss using the adjoint solver method to get the optimum shape of U-shaped paths with and without guide vane (GV). Using three different cases with three different regions of modifications. The optimized shapes showed a reduction in the pressure loss up to 60% in the case of U-bend without guide vanes. | ||||
| Keywords | ||||
| U-Bend; Pressure loss; Adjoint method; Shape optimization | ||||
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