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

研究启动奖（RIAs）为传统黑人学院和大学（HBCUs）中开始建立研究项目的初级教师提供支持，也为需要重新指导和重建研究项目的职业中期教师提供支持。期望该奖项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。随着远程持续超音速运输机和公务机设计技术的进步，超声速空腔流研究的兴趣日益浓厚。塔斯基吉大学的HBCU-UP RIA将在一个急需的教学和研究领域——计算建模和仿真——建立一个先进的教学和研究基础设施。本研究采用高精度、高效率的直接数值模拟方法，研究了超声速空腔内激波/湍流混合层相互作用及各种流动特性，适用于超声速民用运输和军用飞机。从开发的代码中获得的数据将用于执行气动声学分析，从而以最大的精度预测流动振荡和相应的声压级。所提出的数值模型具有显著降低与超音速实验测试相关的高成本的潜力。所产生的研究材料将直接整合到新的和现有的课程和班级中，为来自主要代表性不足的少数民族的本科生和教师发展服务。除了发展首席研究员的研究组合外，该项目还有助于为高科技产业、国家实验室和学术机构提供有竞争力、训练有素、多样化的国家劳动力。该项目涉及与俄亥俄州立大学、美国国家航空航天局（兰利研究中心）和阿拉巴马州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的教师进行前沿研究，并提供了通过出版物与科学界分享这些成果的机会。该机构既是少数民族服务机构，也是促进竞争研究（EPSCoR）的实验项目机构。因此，该项目扩大了epscor指定管辖范围内专业工程领域的研究竞争力的能力和能力。

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.