Terminal Velocity and Its Relationship to Physical Characteristics of Apple (Malus Domestica Borkh L.)

Figures & data

Figure 1 Apparatus for measuring dimensional characteristics. Apple is positioned in the center of horizontal plate, directionally, under the vision of camera.

Figure 2 water column to determine terminal velocity and rising time of apples. An apple in flour of water column, prepared to release, was shown.

Table 1 Difference between the fruit and water densities, volume with (2/3) power and shape with (-1) power for Redspar apples

Coefficient of variation	Standard deviation	Max	Mean	Min
0.10	16	189	167	117	ρw-ρt, kg/m^3
0.25	69	424	275	139	V, cm^3
0.02	0.03	1.49	1.42	1.33	Sh
0.13	0.06	0.56	0.47	0.33	Vt, m/s

Figure 3 Acceleration (m), velocity (d), and depth (j) of fruit rising in water. Fruit density was set to 816.10 kg/m³ and volume to 388.8 cm³.

Figure 4 Terminal velocity versus differences between water and fruit density.

Figure 5 Terminal velocity versus fruit volume.

Figure 6 Terminal velocity versus fruit shape factor.