Drag reduction on textured carbon fibre surfaces

目前的研究建议解决了基本的流动物理与旋转和平移碳纤维表面上的表面摩擦阻力和压力阻力的生产。主要动机是向赞助组织Kazak Group Inc.提供，经过推荐的表面改性，可以减少自行车轮辋上湍流边界层内的表面摩擦，同时延迟大迎角时的失速条件。能源实验室公司已经开发了一种用于在碳纤维表面上产生图案化饰面的方法（即，riblet mimicry），其可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。必须建造一个车轮试验台，以便能够将全尺寸车轮插入试验段，并在进行实验测量时以恒定的角速度旋转。拟议的研究有可能产生与最佳设计微尺度肋条有关的知识产权，以减少旋转和平移碳纤维表面的阻力，这有许多适用的工程应用。

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.