Hussain H. Al-Kayiem1,*, Safaa M. Ali2, Sundus S. Al-Azawiey3, Raed A. Jessam3
Energy Engineering, Vol.123, No.2, 2026, DOI:10.32604/ee.2025.073303
- 27 January 2026
Abstract Gas Turbines are among the most important energy systems for aviation and thermal-based power generation. The performance of gas turbine intakes with S-shaped diffusers is vulnerable to flow separation, reversal flow, and pressure distortion, mainly in aggressive S-shaped diffusers. Several methods, including vortex generators and energy promoters, have been proposed and investigated both experimentally and numerically. This paper compiles a review of experimental investigations that have been performed and reported to mitigate flow separation and restore system performance. The operational principles, classifications, design geometries, and performance parameters of S-shaped diffusers are presented to facilitate the… More >
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