The cost of roughness: predicting the drag penalty of fouled ship hulls

粗糙度的成本：预测污染船体的阻力损失

• 批准号: DP200102824
• 负责人: Prof Nicholas Hutchins
• 金额: $ 27.38万
• 依托单位: The University of Melbourne
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2020
• 资助国家: 澳大利亚
• 起止时间: 2020-02-13 至 2023-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP200102824
• 关键词: cost; roughness; predicting; drag; penalty

Roughness on ship hulls is a prevalent global problem, causing up to 80% increases in resistance compared to ideal smooth surfaces. Targeting a key capability gap, this project aims to build practical tools for predicting the performance penalty in shipping due to hull roughness, requiring only hull observations as an input. Observations made with a custom-built underwater surface scanner will be combined with world-first laser-based flow measurements on the hull of an operating ship, and backed-up by complimentary laboratory experiments. This project will deliver an advanced fundamental understanding of hull roughness and enable more informed decisions for ship operators and regulatory bodies, leading to increased shipping efficiency.

船体的粗糙度是一个普遍存在的全球性问题，与理想的光滑表面相比，导致阻力增加高达 80%。针对关键的能力差距，该项目旨在构建实用工具来预测由于船体粗糙度而导致的航运性能损失，仅需要船体观测作为输入。使用定制的水下表面扫描仪进行的观察将与世界上第一个对运营船舶的船体进行的基于激光的流量测量相结合，并得到免费的实验室实验的支持。该项目将提供对船体粗糙度的先进基本了解，并使船舶运营商和监管机构能够做出更明智的决策，从而提高航运效率。