High Fidelity Tool for Noise Source Identification, Phase I

Metadata Updated: November 12, 2020

Thorough understanding of airframe and propulsion aerodynamic noise sources and the subsequent acoustic propagation to the farfield is necessary to the design and development of efficient, environmentally acceptable aircraft. In this SBIR study, we propose to develop a high fidelity tool using high-order low-dissipation methods in the NASA flagship unstructured CFD code FUN3D. The developed prediction tool can accurately represent the nonlinear flow processes with minimum dissipation, including turbulence, coherent vortices and shock waves critical to the noise generation. Compared to the state-of-the-art unstructured production codes, an increase of one order-of-magnitude in resolvable scales is expected at the expense of just 10% overhead. In Phase I, the effort will include improvement of the 3rd-order scheme for high-aspect ratio unstructured grids, and consistent temporal and spatial accuracies. High-order limiters will be developed to improve the shock capturing capability for sonic boom. The performance improvements will be assessed for the unsteady subsonic and supersonic flows. The Phase II effort will further mature and advance the technology utilizing FUN3D?s massively parallel infrastructure to enable its applications for the prediction of airframe noise sources and the noise sources due to the aerodynamic and acoustic interaction of airframe and engines.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Publisher Space Technology Mission Directorate
Unique Identifier Unknown
Maintainer
Identifier TECHPORT_93518
Data First Published 2017-12-01
Data Last Modified 2020-01-29
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Homepage URL https://techport.nasa.gov/view/93518
Program Code 026:027
Source Datajson Identifier True
Source Hash f8f6158c011409f4b6f22e052558a6689fa52242
Source Schema Version 1.1

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