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.
The viscosity of fluids is a measurement of the resistance to deformation by stress. For most liquids it represents the concept of thickness , as an example ketchup has a much higher viscosity than water. Viscosity is the collision between particles in a fluid which are at different velocities.