Digestion Essay The path of digestion begins in the mouth when food is broken down mechanically, into smaller pieces, by the teeth and tongue. The complex carbohydrates found in the food are also broken down chemically with the help of the enzyme (ptyalin), found in saliva.
apparent viscosity. (fluid mechanics). The value obtained by applying the instrumental equations used in obtaining the viscosity of a Newtonian fluid to viscometer measurements of a non-Newtonian fluid. 1  Facebook. 2  Twitter.
Relative viscosity (Î·rel) is the ratio of the dynamic viscosity of the solution to that of the pure solvent (Î·rel = Î·/Î·0 where Î· is the dynamic viscosity of the solution and Î·0 is the dynamic viscosity of the solvent). As it is a ratio, it is dimensionless having no units.