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DESIGN, FABRICATION AND TESTING OF A LOW-SPEED WIND TUNNEL LABORATORY

机译:低速风洞实验室的设计,制造和测试

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Engineering Technology programs focus on delivering a hands-on engineering education. The students get introduced to the theoretical development of engineering concepts first, then they apply the concepts to solve practical problems and test the concepts in carefully designed experiments carried out in appropriate facilities. One of the key areas of instruction associated with a mechanical engineering technology program is thermofluids where thermodynamic and fluid dynamic concepts are addressed. The engineering areas that these concepts belong to are empirically based disciplines requiring a strong experimental component for the development of the concepts. Wind tunnels have always played a major role in the advancements made in these disciplines1. Thus a wind tunnel facility is an opportune tool for instruction in this key area of engineering. In the Mechanical and Manufacturing Engineering Technology (MMET) department at Arizona State University at the Polytechnic campus (ASU Polytechnic), a course entitled Applied Aerodynamics and Wind Tunnel Testing (AET420) is dedicated to addressing this area. The student is introduced to the basic concepts of how wind tunnels operate, the tunnel design process, and the associated measurement systems. Then the student designs and carries out a set of experiments that reinforce these concepts. A key requirement for this process to be successful is the availability of a wind tunnel facility that is capable of addressing the engineering tasks developed in the classroom. Making use of their applied engineering background, the MMET students designed, analyzed and built an instructional scale wind tunnel. The funding support for the tunnel fabrication was obtained from external sources with the provision that the tunnel would be used to address a specific problem faced by the industrial entity providing the funds. For example, the completed tunnel, with a maximum speed of 50 mph, was first used for testing an aerodynamic problem faced by the trash collection industry (material flying off the hoppers of collection trucks as they went from street to street) in an effort to provide solutions for improving the design of the vehicles. This, in turn, helped the students gain experience in solving problems of interest to industry. The wind tunnel design and fabrication process required the coupling of key disciplines in engineering technology, including the aeronautical, mechanical and manufacturing engineering technologies which form the focus areas of MMET dept. The completed tunnel is now part of the MMET department's resources and plays a critical role in the curriculum.
机译:工程技术计划专注于提供动手工程教育。学生首先介绍了工程概念的理论发展,然后他们应用了概念来解决实际问题并在适当设施中进行精心设计的实验中测试概念。与机械工程技术程序相关的指令的关键领域之一是热流体,其中解决了热力学和流体动力学概念。这些概念所属的工程领域是基于凭证的纪律,需要强大的实验组件来发展概念。风隧道一直在这些学科的进步方面发挥了重要作用。因此,风洞设施是该关键工程领域指导的适当工具。在亚利桑那州立大学的机械和制造工程技术(MMET)部门,在理工学院校园(ASU工业技术),一个题为应用空气动力学和风洞测试的课程(AET420)致力于解决这一领域。学生被引入风隧道操作,隧道设计过程和相关测量系统的基本概念。然后学生设计并进行一系列强化这些概念的实验。该进程成功的一个关键要求是风洞设施的可用性,其能够解决教室中开发的工程任务。利用其应用的工程背景,MMET学生设计,分析和建造了一支教学量表风洞。隧道制造的资金支持是从外部来源获得的,规定隧道将用于解决提供资金的工业实体面临的特定问题。例如,最大速度为50英里/小时的完成隧道首先用于测试垃圾收集行业面临的空气动力学问题(在从街道上从街道上散发出收集卡车的料斗)提供改进车辆设计的解决方案。反过来,这帮助学生获得了解决行业兴趣问题的经验。风洞设计和制造过程需要工程技术中的关键学科的耦合,包括形成MMET部门的焦点区域的航空,机械和制造工程技术。完整的隧道现在是MMET部门资源的一部分,并在课程中发挥着关键作用。

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