Comparison Between Prandtl’s Mixing Length Model and DNS Data for a Channel Flow Up to Reτ ≈ 5200
, , oraz
09 maj 2022
O artykule
Data publikacji: 09 maj 2022
Zakres stron: 99 - 107
Otrzymano: 24 mar 2022
Przyjęty: 31 mar 2022
DOI: https://doi.org/10.2478/bipcm-2022-0008
Słowa kluczowe
© 2022 Gabriel-Dumitru Tcaciuc et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
This paper presents a theoretical study of fully developed turbulent flow in a channel at friction Reynolds numbers of 1000, 2000 and 5200. For the momentum equation, Reynolds Averaged Navier-Stokes (RANS) approach was used, where the Reynolds stress was modeled using Prandtl’s mixing length model with Van Driest’s modification to capture the damping effect near wall. The velocity profile was computed by solving the non-linear ODE for momentum using Euler’s method. The results were compared with the latest available DNS data.