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 term 'viscosity' describes a material's property from a physicist's point of view. It is a fluid's thickness. Scientifically speaking, it is the measure of a fluid's internal flow resistance, the resistance to being deformed. The two-plates model mathematically describes this definition. A fluid's viscosity is determined by viscometry, which is part of a wider science called rheometry. Rheometry again is part of rheology, the science of materials' flow behavior and deformation. All materials range on an imaginary scale from solid to liquid.