Abstract
Recently, it is important the keeping high thermal efficiency of the development of the new type of heat exchanger when it's surface was deposited impurities. Numerical simulation of the particle behavior that likened impurities to sand and snow is developed. Specifically, the Lagrangean approach is employed the particle behavior in the complicated flow field by solving the equation of motion with gravity and drag. As for this calculation, the particle comes under an influence of the flow field to change every time, but is a calculation of one-way where influence does not give it to from the behavior of the particle in the field.
