Research Initiation Award: Direct Numerical Simulation for Shock/Turbulence Interaction with Applications to Supersonic Cavity Flows

研究启动奖：冲击/湍流相互作用的直接数值模拟及其在超音速空腔流中的应用

• 批准号: 1505303
• 负责人: Ovais Khan
• 金额: $ 20万
• 依托单位: Tuskegee University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-08-15 至 2020-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1505303&HistoricalAwards=false
• 关键词: Research; Initiation; Award; Direct; Numerical

Research Initiation Awards (RIAs) provide support for junior faculty at Historically Black Colleges and Universities (HBCUs) who are starting to build a research program, as well as for mid-career faculty who need to re-direct and re-build a research program. It is expected that the award helps to further the faculty member's research capability and effectiveness, improves research and teaching at the researcher's home institution, and involves undergraduate students in research experiences.Interest in supersonic cavity flow research is growing with the advancement of technology to design long range and sustained supersonic transport and business jets. Tuskegee University's HBCU-UP RIA will establish an advanced teaching-research infrastructure in a much needed area of teaching and research - computational modeling and simulation. The proposed research utilizes direct numerical simulation based on a numerical scheme of high accuracy and efficiency to investigate the shock/turbulent mixing layer interaction and various flow features of a supersonic cavity and has applicability to supersonic civil transport and military aircraft. Data obtained from the developed code will be utilized to perform aero-acoustic analysis, thereby, predicting flow oscillations and corresponding sound pressure levels with maximum accuracy. The proposed numerical model has the potential to considerably reduce the high costs associated with supersonic experimental testing.The research material produced will be directly integrated into new and existing courses and classes for undergraduate students from predominately underrepresented minority populations and for faculty development. In addition to developing the the principal investigator's research portfolio, the project contributes to a competitive, well-trained, diverse national workforce for high technology industries, national labs and academic institutions.The project involves collaborations with researchers at the Ohio State University, the National Aeronautics and Space Administration (Langley Research Center)and the Alabama Supercomputer Authority. The development of research capabilities in the area of computational modeling of fluid dynamics problems and high-performance computing assists Tuskegee University faculty in conducting leading-edge research and provides the opportunity to share these outcomes with the scientific community through publications. The institution is both a minority-serving and an Experimental Program to Stimulate Competitive Research (EPSCoR) institution. Thus, the project expands the capability and capacity for research competitiveness in a specialized engineering field in this EPSCoR-designated jurisdiction.

研究启动奖（RIAs）为历史上黑人学院和大学（HBCU）的初级教师提供支持，他们开始建立研究计划，以及需要重新指导和重新建立研究计划的中期教师。 预计该奖项将有助于进一步提高教师的研究能力和效率，改善研究人员所在机构的研究和教学，并使本科生参与研究经验。随着设计远程和持续超音速运输机和公务机的技术进步，对超音速空腔流研究的兴趣正在增长。 塔斯基吉大学的HBCU-UP RIA将在急需的教学和研究领域-计算建模和仿真-建立先进的教学研究基础设施。 该研究采用基于高精度和高效率的数值格式的直接数值模拟来研究激波/湍流混合层干扰和超声速空腔的各种流动特征，并适用于超声速民用运输机和军用飞机。 从开发的代码中获得的数据将被用来进行气动声学分析，从而预测流量振荡和相应的声压级的最大精度。 所提出的数值模型有可能大大降低与超音速实验testing.The研究材料产生的高成本将直接集成到新的和现有的课程和类的本科生从占主导地位的少数民族人口和教师的发展。除了发展主要研究者的研究组合，该项目有助于高科技产业，国家实验室和学术机构的竞争力，训练有素，多元化的国家劳动力。该项目涉及与俄亥俄州州立大学，国家航空航天局（兰利研究中心）和亚拉巴马超级计算机管理局的研究人员合作。 在流体动力学问题的计算建模和高性能计算领域的研究能力的发展有助于塔斯基吉大学教师进行前沿研究，并提供了通过出版物与科学界分享这些成果的机会。 该机构既是一个少数民族服务和实验计划，以刺激竞争力的研究（EPSCoR）机构。 因此，该项目扩大了EPSCoR指定管辖区内专业工程领域的研究竞争力的能力和容量。