1. Bubbles, Drops and Particles, Chapter 6;Clift,1978
2. The resistance to motion of a solid sphere in a fluid;Kahn;Chem. Eng. Commun.,1987
3. M.S. Project;Haider,1987
4. Calculation of particle terminal velocities;Heywood;J. Imp. Coll. Chem. Eng. Soc.,1948
5. Drag coefficients and terminal velocity of spherical and nonspherical particles;Haider;Powder Technol.,1989