U.S.-Egypt Cooperative Research: A Study of The Flow Structures Near a Stationary and an Oscillating Impingement Plate in a Semi-Confined Impinging Jet

美国-埃及合作研究：半封闭冲击射流中静止和振荡冲击板附近的流动结构研究

• 批准号: 0611984
• 负责人: Ahmed Naguib
• 金额: $ 2.95万
• 依托单位: Michigan State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-02-01 至 2011-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0611984&HistoricalAwards=false
• 关键词: U.S.; Egypt; Cooperative; Research; Study

0611984NaguibDescription: This award is to support a cooperative research by Dr. Ahmed Naguib, Department of Mechanical Engineering, Michigan State University (MSU), East Lansing, Michigan and Dr. Abdel-Aziz Abul-Fotoh, National Research Center (NRC), Cairo, Egypt. They plan to undertake an experimental investigation of the characteristics of the flow structures (vortices) in a semi-confined jet flow impinging on an oscillating plate, with particular focus on the aerodynamic loading (mean and oscillating surface pressure) on the impingement plate. The study is motivated by the significance of impinging jets for potential applications relevant to agriculture and textile industry in both countries. The project will involve the design and construction of a jet facility at NRC, development of the impingement plate, integrated with microphone arrays for measuring the unsteady surface pressure at MSU, training of the Egyptian scientists on the use of the microphone array and other research instrumentation at MSU, integration of all instrumentation into the experimental apparatus, and taking measurements. Initially, the spatio-temporal signature of the surface pressure acquired simultaneously with flow-velocity data will be used for investigating the flow without oscillation of the impingement plate. The oscillating-plate case will be examined during the latter part of the project. Junior scientists will conduct all research activities under the supervision of the PI's.Intellectual Merit: This work is expected to result in scientific contribution to fluid dynamics research. In particular, this study pioneers by including an array of microphones for resolving the wall-pressure field in space and time in an impinging jet. It also involves externally imposed oscillation of the impingement plate. The PI and the Egyptian collaborator possess the expertise necessary to ensure the success of this project, and the laboratory equipment and facilities required to conduct the investigation are either available at MSU and NRC or will be acquired using funding from this project.Broader Impact: The potential benefits of the proposed work include: 1. training of US and Egyptian junior scientists; 2. helping expand a research infrastructure in this field at NRC; 3. initiation of an international research partnership between a US university and a major Egyptian research organization; 4. benefiting a wide range of engineering applications including textile, steel and electronics industries in the two countries.This project is being supported under the US-Egypt Joint Fund Program, which provides grants to scientists and engineers in both countries to carry out these cooperative activities.

0611984Naguib 描述：该奖项旨在支持密歇根州东兰辛密歇根州立大学 (MSU) 机械工程系 Ahmed Naguib 博士和开罗国家研究中心 (NRC) Abdel-Aziz Abul-Fotoh 博士的合作研究，埃及。 他们计划对撞击振荡板的半约束射流中的流动结构（涡流）特征进行实验研究，特别关注冲击板上的空气动力载荷（平均和振荡表面压力）。这项研究的动机是撞击射流对于两国农业和纺织业相关潜在应用的重要性。该项目将涉及在 NRC 设计和建造喷气设施、开发与麦克风阵列集成的冲击板，用于测量密歇根州立大学的不稳定表面压力、对埃及科学家进行有关使用麦克风阵列和其他研究仪器的培训在密歇根州立大学，将所有仪器集成到实验装置中并进行测量。 最初，与流速数据同时获取的表面压力的时空特征将用于研究没有冲击板振荡的流动。振荡盘盒将在项目的后期进行检查。初级科学家将在 PI 的监督下开展所有研究活动。智力成果：这项工作预计将为流体动力学研究做出科学贡献。特别是，这项研究开创性地采用了一系列麦克风来解析撞击射流中空间和时间的壁压力场。它还涉及冲击板的外部施加的振动。 PI 和埃及合作者拥有确保该项目成功所需的专业知识，进行调查所需的实验室设备和设施可以在密歇根州立大学和 NRC 获得，也可以使用该项目的资金获得。 更广泛的影响：拟议工作的潜在好处包括： 1. 培训美国和埃及的初级科学家； 2. 帮助 NRC 扩大该领域的研究基础设施； 3. 美国大学和埃及主要研究组织之间建立国际研究伙伴关系； 4. 惠及两国广泛的工程应用，包括纺织、钢铁和电子行业。该项目得到美国-埃及联合基金计划的支持，该计划为两国科学家和工程师开展这些合作提供赠款活动。