An Algebraic Non-Equilibrium Turbulence Model of the High Reynolds Number Transition Region

Autor:	Basse, Nils T.
Rok vydání:	2024
Předmět:	Physics - Fluid Dynamics
Zdroj:	MDPI Water, Volume 15, page 3234, 2023
Druh dokumentu:	Working Paper
DOI:	10.3390/w15183234
Popis:	We present a mixing length-based algebraic turbulence model calibrated to pipe flow; the main purpose of the model is to capture the increasing turbulence production-to-dissipation ratio observed in connection with the high Reynolds number transition region. The model includes the mixing length description by Gersten and Herwig, which takes the observed variation of the von K\'arm\'an number with Reynolds number into account. Pipe wall roughness effects are included in the model. Results are presented for area-averaged (integral) quantities, which can be used both as a self-contained model and as initial inlet boundary conditions for computational fluid dynamics simulations. Comment: 17 pages, 1 table, 10 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2402.01800 Zobrazit plný text záznamu View this record from Arxiv