Diffusion of moisture with heating of environment at dependence of transfer on temperature
2007
Arhipovs, S.
Generalization of the elementary discrete scheme of particles migration leads to continuous integral-differential model of diffusion. Generally the particle can change the position for another and not necessarily for the next one, as in the elementary case. For any particle there can be any preferences in a choice of the new position and, on the contrary, unattractive points for visiting. Movement of a particle can be linear diffusion superposition and convection component. Thus, for example, the moisture transfer coefficient, speed and direction of convection can vary in time depending on thermodynamic characteristics of environment which, in turn, depends on environment humidity or on other parameters - for example, pressure. In this work usage of the general scheme of particles migration on a line are considered. In the environment there is a constant source of temperature (or thermal agent), which diffuses with constant speed and with convection component. Initially, the part of environment is filled with moisture which is warmed up on the one side by a source of convective temperature. Moisture diffuses with the speed depending on temperature of environment; therefore there is a carrying out of moisture from its initial position in direction of heat convection. The given modelling task is realized in the C programming language and results are displayed on MATLAB plots.
显示更多 [+] 显示较少 [-]