CFD study of flow similarities in turbulent regime in a stirred tank

0483789 - ÚH 2019 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Kysela, Bohuš - Chára, Zdeněk - Konfršt, Jiří - Tomášek, K. - Šulc, R.
CFD study of flow similarities in turbulent regime in a stirred tank.
AIP Conference Proceedings. Vol. 1978. Melville: AIP Publishing, 2018, 030028-1-030028-4. ISBN 978-0-7354-1690-1.
[International Conference of Numerical Analysis and Applied Mathematics 2017 (ICNAAM 2017). Thessaloniki (GR), 25.09.2017-30.09.2017]
Grant CEP: GA ČR GA16-20175S
Institucionální podpora: RVO:67985874
Klíčová slova: Rushton turbine * CFD * viscosity
Obor OECD: Fluids and plasma physics (including surface physics)

The CFD simulations of flow in a stirred tank in fully turbulent regime were investigated. The flow Reynolds number was changed in two ways: change of impeller speed and using different values of kinematic viscosity. Results of ensemble-averaged values of axial profiles of radial velocity are consistent with the independency of mean time averaged velocity on Reynolds number in turbulent region, while turbulence characteristics (kinetic turbulent energy, dissipation rate of turbulent kinetic energy) showed slight dependency on Reynolds number.
Trvalý link: http://hdl.handle.net/11104/0285556