Fig 1.
Comparison of various numerical data sets with predictions of drag formulas for the case of the gas bubble.
Fig 2.
Comparison of various numerical data sets with predictions of drag formulas for the case of the solid sphere.
Table 1.
Drag coefficient, Cd, estimated by Oliver and Chung [11] for various viscosity ratios (X) over a range of Reynolds numbers (R0) compared with predictions of Eqs (1) and (10).
Table 2.
Drag coefficient, Cd, for R0 = 100 for different viscosity (X) and density (P) ratios.
Roman values (dashes: No values provided) from Juncu [30], results from Eq (10) are in italics, results in the rightmost column are from Eq (1).