Mathematical design of method of joint determination of capillary complex and kinematics viscosity of liquid

Abstract

Mathematical modeling is a method common definition of capillary complex (the pro-duct of a square capillary constant of the cosine of contact angle wetting) and the kinematic viscosity of the fluid based on the so-called capillary method that has pre-viously been used to measure separately the surface tension of the liquid (in the Jurins formula) and separate it kinematic viscosity (Ubbelodyes viscometer). Determination of physical properties of liquids in the performed in a single experiment on the absorption of fluid in the capillary tsylindrichnyy against the forces of gravity on the basis of accurate approximation of the binomial theorem known E. Washburn equation that describes the kinetics of the process of absorption.