Publisher DOI: 10.1007/978-3-030-27607-2_1
Title: Performance of Under-Resolved, Model-Free LBM Simulations in Turbulent Shear Flows
Language: English
Authors: Gehrke, Martin  
Banari, Amir 
Rung, Thomas  
Issue Date: 2020
Publisher: Springer
Source: Notes on Numerical Fluid Mechanics and Multidisciplinary Design (143): 3-18 (2020)
Abstract (english): 
The paper outlines the predictive capabilities of lattice Boltzmann methods (LBM) in turbulent shear flows. Attention is devoted to a specific collision operator which relaxes the distribution functions in cumulant space. The study highlights the benefits of a carefully defined discrete collision operator by scrutinizing the numerical stability and the predictive accuracy for a wide scope of resolutions—ranging from DNS to RANS—when no ad hoc turbulence closure is employed. Examples included are concerned with two frequently computed fundamental flows, i.e. Taylor-Green vortex and channel flows. Results reveal a fair accuracy and a remarkably small resolution dependence for the investigated cumulant collision operator, which is quite the contrary for other collision models.
ISBN: 978-3-030-27607-2
ISSN: 1860-0824
Institute: Fluiddynamik und Schiffstheorie M-8 
Document Type: Chapter (Book)
Project: Transitions-Manipulation 
Einfluss der Formgebung von Schiffen auf die Propulsionseffizienz und Propeller-Eis-Belastung; Modellierung der Umströmung von Schiffen in eisbedeckten Gewässern 
Part of Series: Notes on numerical fluid mechanics and multidisciplinary design 
Volume number: 143
Appears in Collections:Publications without fulltext

Show full item record

Page view(s)

Last Week
Last month
checked on Jun 3, 2023


Last Week
Last month
checked on Jun 30, 2022

Google ScholarTM


Add Files to Item

Note about this record

Cite this record


Items in TORE are protected by copyright, with all rights reserved, unless otherwise indicated.