Abstract
In the previous paper, the simulated results of the VOCs concentration in a single room were demonstrated with macroscopic models. In this paper, these models were extended to the multiple room problem and the results of several cases were shown. Some CFD simulations were also conducted to study VOCs distribution in a room based on the standard k-e model, in which the emission rate at material surfaces was evaluated by the macroscopic model and it was given as the boundary condition of CFD. When the diffusion process in solids was regarded as a dominated process, and the convective mass transfer process at the boundary layer was not so important, the mass flux can be estimated only on the basis of the internal diffusion process. This leads to a drastic reduction of the CPU time for analysis, and even the three-dimensional CFD prediction of VOCs distribution in a room can be achieved with reasonable CPU time.
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