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

[0611984] Naguib描述：该奖项旨在支持密歇根州立大学机械工程系Ahmed Naguib博士和埃及开罗国家研究中心（NRC） Abdel-Aziz abu - fotoh博士的合作研究。他们计划对撞击振动板的半密闭射流的流动结构（旋涡）特性进行实验研究，特别关注撞击板上的气动载荷（平均表面压力和振荡表面压力）。这项研究的动机是由于撞击射流对两国农业和纺织工业的潜在应用具有重要意义。该项目将包括在NRC设计和建造一个喷气设备，开发与麦克风阵列集成的撞击板，用于测量密歇根州立大学的非定常表面压力，培训埃及科学家在密歇根州立大学使用麦克风阵列和其他研究仪器，将所有仪器集成到实验仪器中，并进行测量。首先，将同时获得的表面压力与流速数据的时空特征用于研究无振动冲击板的流动。振荡板的情况将在项目的后半部分进行检查。初级科学家将在PI的监督下进行所有研究活动。智力价值：这项工作有望对流体动力学研究产生科学贡献。特别是，这项研究的开创性之处是，它包括了一组麦克风，用于解决撞击射流中空间和时间上的壁面压力场。它还涉及到撞击板的外力振荡。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要么在密歇根州立大学和NRC可用，要么将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：培训美国和埃及的青年科学家；2. 帮助扩大NRC在这一领域的研究基础设施；3. 在一所美国大学和一个主要的埃及研究组织之间发起一项国际研究伙伴关系；4. 使两国的纺织、钢铁和电子工业等广泛的工程应用受益。该项目得到了美国-埃及联合基金项目的支持，该项目向两国的科学家和工程师提供赠款，以开展这些合作活动。

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.