2017/01/06 by Vaidas Juknevicius, Vaidas Juknevičius, Jogundas Armaitis
Engineering · Physics and Astronomy · #Burgers vortex #Flow (mathematics) #Flow Measurement and Analysis #Fluid Dynamics and Turbulent Flows #Lattice Boltzmann Simulation Studies #Reynolds number #Strouhal number #Tourbillon #Vortex #Vortex shedding #physics.flu-dyn
paper · pdf · doi:10.3952/physics.v56i4.3415
published as Lithuanian Journal of Physics, Vol. 56, No. 4, pp. 191-199 (2016)
openalex publication_date 2017/01/06 · openalex created_date 2017/01/13 · arxiv created 2017/01/30 · arxiv updated 2017/01/31 · openalex updated_date 2026/08/05
Motivated by recent experimental and computational results concerning a three-dimensional structure of vortices behind a vortex shedding flow meter [M. Reik et al., Forsch. Ingenieurwes. 74 , 77 (2010)], we study the Strouhal–Reynolds number dependence in the vortex street in two dimensions behind a trapezoid-shaped object by employing two types of Frisch–Hasslacher–Pomeau (FHP) models. Our geometry is intended to reproduce the operation of a vortex shedding flow meter in a two-dimensional setting, thus preventing the formation of a three-dimensional vortex structure. In particular, we check if the anomalous Reynolds–Strouhal number dependence reported for three dimensions can also be found in our two-dimensional simulation. As we find that the Strouhal number is nearly independent of the Reynolds number in this particular setup, our results provide support for the hypothesis that three-dimensional flow structures are responsible for that dependence, thus hinting at the importance of the pipe diameter to the accurate operation of industrial vortex flow meters.