Wall turbulence control: beyond the canonical smooth wall case

壁湍流控制：超越典型的光滑壁情况

• 批准号: DP190102751
• 负责人: Prof Lyazid Djenidi
• 金额: $ 32.71万
• 依托单位: The University of Newcastle
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2019
• 资助国家: 澳大利亚
• 起止时间: 2019-03-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP190102751
• 关键词: Wall; turbulence; control; beyond; canonical

This project aims to fill a critical knowledge gap in the area of wall turbulence by investigating how a rough wall turbulent boundary layer responds to changes, such as wall suction and blowing. The economic and environmental costs caused by the roughening of surfaces on moving vehicles is staggering in the transport industry (roads, rails, air and sea) and ultimately for Australia. This project will generate new knowledge to ascertain whether or not turbulent flows over rough surfaces can be controlled or managed to achieve outcomes such as reducing the drag of a roughened bluff body, for example a ship whose hull is roughened by fouling. The project expects to improve understanding of wall turbulence control, and will lead to significant benefits such as improved control technologies and better prediction and description of wall turbulence.

本项目旨在通过研究粗糙壁面湍流边界层如何响应壁面吸力和吹风等变化，填补壁面湍流领域的关键知识空白。在运输行业（公路、铁路、航空和海运），移动车辆表面的粗糙化所造成的经济和环境成本是惊人的，最终对澳大利亚也是如此。该项目将产生新的知识，以确定是否可以控制或管理粗糙表面上的湍流，以实现诸如减少粗糙钝体阻力的结果，例如船体因污垢而粗糙的船只。该项目有望提高对壁面湍流控制的认识，并将带来显著的效益，如改进控制技术，更好地预测和描述壁面湍流。