Control effect on the divergent and convergent riblets in particle-laden turbulent boundary layer
Pengda Yuan,
Jiao Sun,
Tianda Gao
et al.
Abstract:Particle image velocimetry was employed to investigate the impact of convergent–divergent riblets on turbulent boundary layers in both clear water and liquid–solid two-phase flow fields containing 155 μm polystyrene particles. The turbulence statistics such as turbulence intensity and Reynolds stress were investigated. The spatial topology of spanwise vortex head and the development and evolution process of hairpin vortices were explored from Euler and Lagrange perspectives, respectively. Additionally, the par… Show more
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