Flow over rough-walled circular cylinder in the critical area
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Vysoká škola báňská - Technická univerzita Ostrava
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Abstract
The article deals with the flow over a roughwalled
circular cylinder in the critical area at high Re
numbers. The subject of the paper is a comparison of
the standard calculation of the aerodynamic drag coefficient
with numerical modeling. Numerical tasks are
solved by the simplified geometry of the smooth cylinder,
where the influence of the rough surface is given
by the equivalent aerodynamic roughness, and also by
the model with the real geometry of the rough casing of
the cylinder.
Description
Subject(s)
CFD, SST k-omega, circular cylinder, high Reynolds number, boundary layer, wall function, aerodynamic roughness, near-wall modeling, aerodynamic drag coefficient
Citation
Sborník vědeckých prací Vysoké školy báňské - Technické univerzity Ostrava. Řada stavební. 2018, roč. 18, č. 1, s. 1-5 : il.