Work

Soliton-like coherent structures: a key to opening the door to turbulence

Year: 2025

Type: article

Abstract: This review summarizes recent advances in the origin of turbulence. The soliton-like coherent structure (SCS) has been identified not only as a common structure in natural and K-type transitions, but also as a fundamental structure in N-type, O-type and bypass-type transitions, which dominate turbulence generation. It has also been confirmed as an essential structure in turbulent boundary layers. Notably, the SCS has been successively observed in pipe flows, stratified flows, mixing layers, jet flows, falling films and wakes. These findings collectively indicate that the SCS serves as a fundamental structure in shear flows, providing significant insights into the origin of shear turbulence.

Source: National Science Review

DOI: 10.1093/nsr/nwaf535

Authors: Shiyi Chen, Xiaogang Deng, Cunbiao Lee

Institutions: Peking University, State Key Laboratory of Turbulence and Complex Systems, Sichuan University, PLA Academy of Military Science

Language: English

Topic: Fluid Dynamics and Turbulent Flows

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,000

Funder: National Natural Science Foundation of China