Affiliation:
1. Independent Researcher, Trubadurens Väg 8, 423 41 Göteborg, Sweden
Abstract
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 Kármán 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.
Subject
Water Science and Technology,Aquatic Science,Geography, Planning and Development,Biochemistry
Reference53 articles.
1. Basse, N.T. (2023, September 06). Mind the Gap: Boundary Conditions for Turbulence Modelling. Available online: https://www.researchgate.net/publication/359218404_Mind_the_Gap_Boundary_Conditions_for_Turbulence_Modelling.
2. Logarithmic scaling of turbulence in smooth- and rough-wall pipe flow;Hultmark;J. Fluid Mech.,2013
3. Smits, A.J. (2023, September 06). Princeton Superpipe Measurements. Available online: https://smits.princeton.edu/superpipe-turbulence-data.
4. Scaling of global properties of fluctuating and mean streamwise velocities in pipe flow: Characterization of a high Reynolds number transition region;Basse;Phys. Fluids,2021
5. Scaling of global properties of fluctuating streamwise velocities in pipe flow: Impact of the viscous term;Basse;Phys. Fluids,2021