@inproceedings{b0199096e2974e6f9769b801e0387ead,
title = "A new extension of wray-agarwal wall distance free turbulence model to rough wall flows",
abstract = "This paper provides a roughness correction to the latest version of Wall-Distance-Free Wray-Agarwal (WA) one equation turbulence model (WA2018). The results from WA 2018 rough wall model are compared to Spalart-Allmaras model with roughness and the previous version of WA model (WA2017) with roughness. The results from WA2018-Rough model for flow over a flat plate show substantial improvement from the previous version WA2017-Rough and a good agreement with a semi-empirical formula based on experimental results. For flow past a S809 airfoil with surface roughness, WA2018-Rough model performs quite well compared to SA-Rough model. In case of fully developed turbulent flow in a rough-wall channel, WA2018-Rough model has an overall better performance than SA-Rough model. It is demonstrated that the WA2018 – Rough model has good computational accuracy compared to the two other models considered.",
author = "Tianshu Wen and Agarwal, {Ramesh K.}",
note = "Publisher Copyright: {\textcopyright} 2019, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.; AIAA Scitech Forum, 2019 ; Conference date: 07-01-2019 Through 11-01-2019",
year = "2019",
doi = "10.2514/6.2019-1881",
language = "English",
isbn = "9781624105784",
series = "AIAA Scitech 2019 Forum",
publisher = "American Institute of Aeronautics and Astronautics Inc, AIAA",
booktitle = "AIAA Scitech 2019 Forum",
}