An investigation on the drag reduction performance of bioinspired pipeline surfaces with transverse microgrooves

• Weili Liu,
• Hongjian Ni,
• Peng Wang and
• Yi Zhou

Beilstein J. Nanotechnol. 2020, 11, 24–40, doi:10.3762/bjnano.11.3

• utilization of bionic theory to reduce the pressure loss of fluid transport is feasible. These results can provide theoretical guidance to save energy in pipeline transportations. Keywords: bionic pipeline; drag reduction; drag reduction mechanism; fluid transport; transverse micro-grooves; Introduction

• microstructure, it can be divided into streamwise grooves and transverse grooves. With the development of numerical simulations and experimental techniques, the influence of microstructures on turbulent flow characteristics can be investigated accurately. Its drag reduction mechanism is owed to the two aspects

• transverse microgrooves. Finally, the drag reduction mechanism of transverse microgrooves was revealed systematically. Methods CFD simulation method and validation Computational models Pressure loss mainly derives from fluid turbulent flow in the pipeline and the annulus between coaxial pipelines, so the