MATHEMATICAL MODELING OF UNSTATIONARY AIR POLLUTION PROCESS

Problem statement. The task of determining the dynamics air pollution in working room when containing a chemically hazardous substance flows into it is considered. peculiarity this problem that formation areas influenced by many factors, especially internal geometry (the presence technological equipment room, furniture, etc.). Therefore, necessary to have specialized mathematical models allow predicting level chemical for given type pollution. purpose article. Development three-dimensional numerical model indoor flow aerodynamics and mass transfer entering through ventilation system predict risk toxic damage workers. Methodology. A equation convective-diffusion transport used process spread air. velocity field calculated on basis incompressible fluid potential motion. For integration Laplace potential, two finite-difference schemes are used. splitting method impurity. At each step, determination unknown concentration impurity carried out according an explicit formula. computer code was created conduct computational experiments based developed model. Scientific novelty. has been analyse workplaces impurities enter premises system. feature consideration main physical factors affecting calculation speed. Practical value. its solving specific problems arise assessing workers at facilities. Conclusions. An effective created, which contamination enters results experiment presented.