Drag reduction on textured carbon fibre surfaces

纹理化碳纤维表面的减阻

• 批准号: 491746-2015
• 负责人: Morton, Christopher
• 金额: $ 1.8万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=587081
• 关键词: Drag; reduction; textured; carbon; fibre

The present research proposal addresses the fundamental flow physics associated with the production of skin friction drag and pressure drag on rotating and translating carbon fibre surfaces. The primary motivation is to provide the sponsoring organization, Kazak Group Inc., with a recommended surface modification which may reduce skin friction within the turbulent boundary layer on a bicycle wheel rim, while simultaneously delaying stall conditions at high angles of attack to the wind. Energylab Inc. has developed a process for creating patterned finishes on carbon fibre surfaces (i.e., riblet mimicry), which could be applicable to a wide range of engineering applications. This research project will be carried out via experimental wind tunnel testing in the applicants laboratory. A wheel test stand must be constructed in order to enable full scale wheels to be inserted into the test section and rotated at a constant angular speed while experimental measurements take place. The proposed research has the potential to generate intellectual property pertaining to the optimal design micro-scale riblets for reducing drag on rotating and translating carbon fibre surfaces, for which there are numerous applicable engineering applications.

本研究建议介绍了与旋转和翻译碳纤维表面的皮肤摩擦阻力和压力阻力产生的基本流体物理。主要的动机是为赞助组织Kazak Group Inc.提供建议的表面修饰，这可能会减少自行车轮辋上湍流边界层内的皮肤摩擦，同时以高攻击的高角度延迟失速条件。 EnergyLab Inc.开发了一个过程，用于在碳纤维表面（即Riblet Mimicry）上创建图案表面处理，该过程可能适用于广泛的工程应用。 该研究项目将通过申请人实验室的实验风洞测试进行。必须构建车轮测试架，以使全尺度轮插入测试部分并以恒定的角速度旋转，同时进行实验测量。拟议的研究有可能生成与最佳设计微型开关有关的知识产权，以减少旋转和翻译碳纤维表面的阻力，为此有许多适用的工程应用。