Influence mechanism of disk surface roughness on the flow characteristics of low-speed marine gas turbine rotor–stator cavity

• Published in: Physics of fluids (1994) Vol. 37; no. 7
• Main Authors: Wang, Chuan, Yao, Yulong, Yu, Hao, Wang, Hui, Chang, Hao
• Format: Journal Article
• Language: English
• Published: Melville American Institute of Physics 01.07.2025
• Subjects: Aerodynamics; Computational fluid dynamics; Flow characteristics; Gas turbines; Holes; Low speed; Performance measurement; Rotating disks; Rotors; Stators; Surface roughness; Thrust; Torque

In marine gas turbines, surface roughness on both rotating and stationary disk surfaces can markedly alter flow structures within the rotor–stator cavity, leading to energy losses that remain poorly quantified in the literature. This study presents the first systematic computational fluid dynamics i...