Transition to turbulence in the wake of a circular cylinder

圆柱体之后过渡到湍流

• 批准号: DE190100870
• 负责人: Dr Hongyi Jiang
• 金额: $ 21.5万
• 依托单位: The University of Western Australia
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Early Career Researcher Award
• 财政年份: 2019
• 资助国家: 澳大利亚
• 起止时间: 2019-01-09 至 2022-01-08
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DE190100870
• 关键词: Transition; turbulence; wake; circular; cylinder

This project aims to investigate the flow transition from laminar to turbulent in the wake of a circular cylinder subjected to steady current. The project expects to generate new knowledge on the complicated flow behaviours and physical mechanisms for flow transition to turbulence through advanced numerical modelling. Expected outcomes include a physical understanding of the flow evolution to turbulence, as well as an understanding of the laminar and turbulent flow characteristics and the suppression of turbulence in the context of flow control. The knowledge generated will be applicable to improved design and safe operations of the sub-sea transmission and communication cables used in the offshore oil and gas industry and the emerging offshore renewable energy industry.

本计画旨在研究定常流作用下圆柱尾迹从层流到紊流的转变。该项目预计将通过先进的数值模拟产生关于复杂流动行为和流动过渡到湍流的物理机制的新知识。预期成果包括对湍流流动演变的物理理解，以及对层流和湍流流动特性的理解，以及在流动控制背景下对湍流的抑制。所产生的知识将适用于改进海上石油和天然气工业以及新兴的海上可再生能源工业使用的海底传输和通信电缆的设计和安全操作。