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.
Viscosity is intuitively a very simple concept. Rightat the surface of the object the air âsticksâ to it so thatthe local velocity is strictly zero, u = 0, see Fig. 1. Thegradient of the velocity âu/âz in the direction perpendic-ular to the surface is ï¬nite, however.