Numerical investigation on noise and flow characteristics of a circular cylinder with helical grooves

• Published in: Discover applied sciences Vol. 7; no. 7; pp. 1 - 30
• Main Authors: Li, Tao, Lu, Ningzhou
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.07.2025; Springer
• Subjects: Aerodynamic noise; Applied and Technical Physics; Chemistry/Food Science; Circular cylinder; Earth Sciences; Engineering; Environment; Helical grooves; Materials Science; Peak sound pressure level; Vortex intensity; Vortex intensity; Aerodynamic noise; Circular cylinder; Peak sound pressure level; Helical grooves

The paper presents a numerical investigation on the use of helical groove to reduce flow-induced noise from a circular cylinder. The study primarily explores the effects of groove pitch, groove depth ratio and groove profile on aerodynamic noise over a Reynolds number range of 2.8 × 10 4 to 8.6 × 10...