riblet

n.

（小羊、小牛的）肋条，排骨；

Combined riblet and lebu drag reduction system
Turbulent drag reduction mechanism above a riblet surface
Turbulent drag reduction mechanism above a riblet surface
Fluid Drag Reduction with Shark‐Skin Riblet Inspired Microstructured Surfaces
Control of flow around a NACA 0012 airfoil with a micro-riblet film
Flow control of circular cylinder with a V-grooved micro-riblet film
Flow field analysis of a turbulent boundary layer over a riblet surface
Direct numerical simulation of turbulent flow over a modelled riblet-covered surface
A direct numerical simulation of laminar and turbulent flow over riblet-mounted surfaces
Direct measurements of turbulent boundary layer wall pressure wavenumber-frequency spectra on smooth and riblet-coated plates