TY - JOUR
T1 - Numerical investigation of closures for interface forces acting on single air-bubbles in water using volume and fluid and front tracking models
AU - Dijkhuizen, W.
AU - Hengel, van den, E.I.V.
AU - Deen, N.G.
AU - Sint Annaland, van, M.
AU - Kuipers, J.A.M.
PY - 2005
Y1 - 2005
N2 - Closures for the drag and virtual mass forces acting on a single air bubble rising in initially quiescent pure water have been numerically investigated using direct numerical simulation techniques. A 3D Front Tracking model was used and the results were compared with simulation results obtained with a 2D Volume of Fluid model to assess the influence of the third dimension. In the simulations realistic values were taken for the physical properties, i.e., a density ratio of 800. The computed time-averaged terminal rise velocity and mean aspect ratio for individual air bubbles ranging in equivalent diameter from 1 to 10 mm rising in pure water compare well with available experimental data.
AB - Closures for the drag and virtual mass forces acting on a single air bubble rising in initially quiescent pure water have been numerically investigated using direct numerical simulation techniques. A 3D Front Tracking model was used and the results were compared with simulation results obtained with a 2D Volume of Fluid model to assess the influence of the third dimension. In the simulations realistic values were taken for the physical properties, i.e., a density ratio of 800. The computed time-averaged terminal rise velocity and mean aspect ratio for individual air bubbles ranging in equivalent diameter from 1 to 10 mm rising in pure water compare well with available experimental data.
U2 - 10.1016/j.ces.2005.03.048
DO - 10.1016/j.ces.2005.03.048
M3 - Article
SN - 0009-2509
VL - 60
SP - 6169
EP - 6175
JO - Chemical Engineering Science
JF - Chemical Engineering Science
IS - 22
ER -