原文传递
Benchmark Solutions for Computational Aeroacoustics (CAA) Code Validation.
| 题名： | Benchmark Solutions for Computational Aeroacoustics (CAA) Code Validation. |
| 作者： | Scott, James R. |
| 关键词： | *Aeroacoustics-; *Gusts-; *Aircraft-noise; *Airfoils-; *Dynamic-response; *Airfoil-profiles.;Flat-plates; Far-fields; Computer-programs. |
| 摘要： | NASA has conducted a series of Computational Aeroacoustics (CAA) Workshops on Benchmark Problems to develop a set of realistic CAA problems that can be used for code validation. In the Third (1999) and Fourth (2003) Workshops, the single airfoil gust response problem, with real geometry effects, was included as one of the benchmark problems. Respondents were asked to calculate the airfoil RMS pressure and far-field acoustic intensity for different airfoil geometries and a wide range of gust frequencies. This paper presents the validated that have been obtained to the benchmark problem, and in addition, compares them with classical flat plate results. It is seen that airfoil geometry has a strong effect on the airfoil unsteady pressure, and a significant effect on the far-field acoustic intensity. Those parts of the benchmark problem that have not yet been adequately solved are identified and presented as a challenge to the CAA research community. |
| 报告类型： | 科技报告 |
相关文献
- Benchmark Solutions for Computational Aeroacoustics (CAA) Code Validation
- Mode Propagation Database Suitable for Code Validation Utilizing the NASA Glenn Advanced Noise Control Fan and Artificial Sources.
- Cargo Compartment Smoke Transport Computational Fluid Dynamics Code Validation.
- March 2000 Working Group Meeting on Heavy Vehicle Aerodynamic Drag: Presentations and Summary of Comments and Conclusions
- 2D Unstructured Dam-Break Model: Formulation and Validation.
- March 2000 Working Group Meeting on Heavy Vehicle Aerodynamic DragL Presentations and Summary of Comments and Conclusions
检索历史
应用推荐
